./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/c.01_assume-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/c.01_assume-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 b4afea49cf97a69d20f4a5a7301b61ef07ffc206 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:34:44,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:34:44,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:34:44,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:34:44,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:34:44,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:34:44,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:34:44,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:34:44,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:34:44,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:34:44,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:34:44,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:34:44,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:34:44,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:34:44,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:34:44,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:34:44,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:34:44,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:34:44,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:34:44,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:34:44,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:34:44,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:34:44,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:34:44,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:34:44,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:34:44,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:34:44,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:34:44,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:34:44,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:34:44,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:34:44,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:34:44,377 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:34:44,378 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:34:44,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:34:44,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:34:44,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:34:44,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:34:44,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:34:44,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:34:44,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:34:44,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:34:44,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:34:44,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:34:44,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:34:44,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:34:44,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:34:44,411 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:34:44,411 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:34:44,412 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:34:44,412 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:34:44,413 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:34:44,413 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:34:44,413 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:34:44,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:34:44,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:34:44,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:34:44,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:34:44,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:34:44,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:34:44,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:34:44,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:34:44,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:34:44,417 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:34:44,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:34:44,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:34:44,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:34:44,419 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:34:44,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:34:44,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:34:44,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:34:44,420 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:34:44,421 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:34:44,421 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4afea49cf97a69d20f4a5a7301b61ef07ffc206 [2020-11-29 23:34:44,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:34:44,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:34:44,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:34:44,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:34:44,702 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:34:44,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/c.01_assume-alloca.i [2020-11-29 23:34:44,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/data/315e769c5/7a79e6df307e48c4ac42bdfdbb71aebe/FLAGc83652707 [2020-11-29 23:34:45,273 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:34:45,273 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/sv-benchmarks/c/termination-memory-alloca/c.01_assume-alloca.i [2020-11-29 23:34:45,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/data/315e769c5/7a79e6df307e48c4ac42bdfdbb71aebe/FLAGc83652707 [2020-11-29 23:34:45,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/data/315e769c5/7a79e6df307e48c4ac42bdfdbb71aebe [2020-11-29 23:34:45,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:34:45,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:34:45,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:45,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:34:45,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:34:45,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:45" (1/1) ... [2020-11-29 23:34:45,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d74812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:45, skipping insertion in model container [2020-11-29 23:34:45,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:34:45" (1/1) ... [2020-11-29 23:34:45,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:34:45,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:34:45,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:45,995 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:34:46,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:34:46,104 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:34:46,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46 WrapperNode [2020-11-29 23:34:46,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:34:46,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:46,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:34:46,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:34:46,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:34:46,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:34:46,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:34:46,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:34:46,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... [2020-11-29 23:34:46,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:34:46,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:34:46,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:34:46,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:34:46,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:34:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:34:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:34:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:34:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:34:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:34:46,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:34:46,550 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 23:34:46,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:46 BoogieIcfgContainer [2020-11-29 23:34:46,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:34:46,553 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:34:46,553 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:34:46,571 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:34:46,572 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:34:46,572 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:34:45" (1/3) ... [2020-11-29 23:34:46,574 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466dda0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:34:46, skipping insertion in model container [2020-11-29 23:34:46,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:34:46,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:34:46" (2/3) ... [2020-11-29 23:34:46,575 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@466dda0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:34:46, skipping insertion in model container [2020-11-29 23:34:46,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:34:46,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:46" (3/3) ... [2020-11-29 23:34:46,577 INFO L373 chiAutomizerObserver]: Analyzing ICFG c.01_assume-alloca.i [2020-11-29 23:34:46,625 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:34:46,625 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:34:46,626 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:34:46,626 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:34:46,626 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:34:46,626 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:34:46,626 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:34:46,626 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:34:46,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 23:34:46,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 23:34:46,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:46,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:46,675 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:34:46,676 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:34:46,676 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:34:46,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2020-11-29 23:34:46,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 23:34:46,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:46,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:46,680 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:34:46,680 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:34:46,688 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 12#L553-3true [2020-11-29 23:34:46,690 INFO L796 eck$LassoCheckResult]: Loop: 12#L553-3true call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 9#L553-1true assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 13#L555-5true assume !true; 16#L555-6true call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 12#L553-3true [2020-11-29 23:34:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:46,702 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 23:34:46,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:46,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619932306] [2020-11-29 23:34:46,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:46,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:46,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:46,942 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:46,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:46,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1144712, now seen corresponding path program 1 times [2020-11-29 23:34:46,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:46,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635158025] [2020-11-29 23:34:46,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:47,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:47,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635158025] [2020-11-29 23:34:47,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:47,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:34:47,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204881228] [2020-11-29 23:34:47,009 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:34:47,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:47,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:34:47,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:34:47,025 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2020-11-29 23:34:47,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:47,030 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-11-29 23:34:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:34:47,032 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-11-29 23:34:47,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 23:34:47,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 9 states and 11 transitions. [2020-11-29 23:34:47,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-29 23:34:47,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-29 23:34:47,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2020-11-29 23:34:47,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:34:47,037 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 23:34:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2020-11-29 23:34:47,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-29 23:34:47,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 23:34:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-11-29 23:34:47,055 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 23:34:47,055 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-29 23:34:47,056 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:34:47,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2020-11-29 23:34:47,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-11-29 23:34:47,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:47,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:47,057 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:34:47,057 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:34:47,057 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 36#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 37#L553-3 [2020-11-29 23:34:47,058 INFO L796 eck$LassoCheckResult]: Loop: 37#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 39#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 40#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 44#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 41#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 42#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 37#L553-3 [2020-11-29 23:34:47,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:47,058 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-29 23:34:47,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:47,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734465898] [2020-11-29 23:34:47,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:47,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:47,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1099516500, now seen corresponding path program 1 times [2020-11-29 23:34:47,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:47,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747579138] [2020-11-29 23:34:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:47,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747579138] [2020-11-29 23:34:47,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:34:47,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:34:47,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646507839] [2020-11-29 23:34:47,182 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:34:47,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:47,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:34:47,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:34:47,184 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 5 states. [2020-11-29 23:34:47,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:47,300 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2020-11-29 23:34:47,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:34:47,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2020-11-29 23:34:47,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-11-29 23:34:47,304 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 21 transitions. [2020-11-29 23:34:47,304 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-29 23:34:47,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 23:34:47,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2020-11-29 23:34:47,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:34:47,305 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-11-29 23:34:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2020-11-29 23:34:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-11-29 23:34:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 23:34:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2020-11-29 23:34:47,307 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-29 23:34:47,307 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2020-11-29 23:34:47,307 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:34:47,307 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2020-11-29 23:34:47,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-11-29 23:34:47,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:47,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:47,308 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:34:47,309 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:34:47,309 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 72#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 73#L553-3 [2020-11-29 23:34:47,309 INFO L796 eck$LassoCheckResult]: Loop: 73#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 75#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 76#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 80#L555-1 assume !test_fun_#t~short8; 83#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 81#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 73#L553-3 [2020-11-29 23:34:47,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:47,310 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2020-11-29 23:34:47,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:47,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519819028] [2020-11-29 23:34:47,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:47,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:47,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1099518422, now seen corresponding path program 1 times [2020-11-29 23:34:47,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:47,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241626072] [2020-11-29 23:34:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:47,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:47,388 INFO L82 PathProgramCache]: Analyzing trace with hash 179567640, now seen corresponding path program 1 times [2020-11-29 23:34:47,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:47,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855758973] [2020-11-29 23:34:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:47,454 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:47,460 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:47,608 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2020-11-29 23:34:47,913 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2020-11-29 23:34:48,021 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:34:48,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:34:48,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:34:48,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:34:48,022 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:34:48,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:48,023 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:34:48,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:34:48,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume-alloca.i_Iteration3_Lasso [2020-11-29 23:34:48,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:34:48,023 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:34:48,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,294 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-29 23:34:48,405 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-11-29 23:34:48,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:48,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:49,050 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:34:49,055 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:49,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:49,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:34:49,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:34:49,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:34:49,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:49,115 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 [2020-11-29 23:34:49,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:34:49,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:34:49,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:34:49,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:49,167 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 [2020-11-29 23:34:49,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:34:49,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:34:49,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:49,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:49,212 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 [2020-11-29 23:34:49,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:34:49,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:34:49,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:34:49,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:49,261 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 [2020-11-29 23:34:49,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:49,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:34:49,277 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:49,320 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 [2020-11-29 23:34:49,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:49,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:49,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:49,360 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 [2020-11-29 23:34:49,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:49,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:34:49,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:49,402 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 [2020-11-29 23:34:49,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:49,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:34:49,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:49,462 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 [2020-11-29 23:34:49,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:49,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:49,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:49,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:49,470 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:49,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:34:49,478 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:34:49,574 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 23:34:49,574 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:49,620 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:49,623 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:34:49,623 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:34:49,624 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1) = 2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 + 1 Supporting invariants [] [2020-11-29 23:34:49,691 INFO L297 tatePredicateManager]: 9 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 23:34:49,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 23:34:49,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:49,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:34:49,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:49,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 23:34:49,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:49,908 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2020-11-29 23:34:49,910 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:34:49,927 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:34:49,928 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-29 23:34:49,929 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:33 [2020-11-29 23:34:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:49,980 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 [2020-11-29 23:34:49,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-29 23:34:50,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 31 states and 40 transitions. Complement of second has 8 states. [2020-11-29 23:34:50,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 23:34:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 23:34:50,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-11-29 23:34:50,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2020-11-29 23:34:50,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:34:50,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 6 letters. [2020-11-29 23:34:50,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:34:50,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 12 letters. [2020-11-29 23:34:50,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:34:50,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2020-11-29 23:34:50,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-11-29 23:34:50,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 39 transitions. [2020-11-29 23:34:50,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-29 23:34:50,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 23:34:50,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 39 transitions. [2020-11-29 23:34:50,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:34:50,117 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-11-29 23:34:50,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 39 transitions. [2020-11-29 23:34:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2020-11-29 23:34:50,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 23:34:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2020-11-29 23:34:50,128 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-29 23:34:50,128 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2020-11-29 23:34:50,128 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:34:50,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2020-11-29 23:34:50,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-11-29 23:34:50,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:50,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:50,132 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:34:50,132 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:50,132 INFO L794 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 215#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 216#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 222#L553-1 [2020-11-29 23:34:50,132 INFO L796 eck$LassoCheckResult]: Loop: 222#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 223#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 228#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 218#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 219#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 226#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 237#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 236#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 232#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 230#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 222#L553-1 [2020-11-29 23:34:50,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:50,133 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-29 23:34:50,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:50,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165413768] [2020-11-29 23:34:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,189 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:50,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:50,190 INFO L82 PathProgramCache]: Analyzing trace with hash 15750502, now seen corresponding path program 1 times [2020-11-29 23:34:50,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:50,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459740625] [2020-11-29 23:34:50,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:50,256 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:50,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459740625] [2020-11-29 23:34:50,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130499823] [2020-11-29 23:34:50,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:34:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:50,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 23:34:50,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:50,318 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:34:50,318 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:34:50,320 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:34:50,321 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:34:50,321 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 23:34:50,330 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-11-29 23:34:50,331 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:34:50,333 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:34:50,333 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:34:50,334 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:7 [2020-11-29 23:34:50,349 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:34:50,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:34:50,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2020-11-29 23:34:50,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338914112] [2020-11-29 23:34:50,367 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 23:34:50,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:34:50,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:34:50,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:34:50,368 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. cyclomatic complexity: 11 Second operand 7 states. [2020-11-29 23:34:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:34:50,480 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2020-11-29 23:34:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 23:34:50,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 60 transitions. [2020-11-29 23:34:50,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 20 [2020-11-29 23:34:50,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 60 transitions. [2020-11-29 23:34:50,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-11-29 23:34:50,487 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-11-29 23:34:50,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 60 transitions. [2020-11-29 23:34:50,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:34:50,487 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 60 transitions. [2020-11-29 23:34:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 60 transitions. [2020-11-29 23:34:50,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2020-11-29 23:34:50,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 23:34:50,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 23:34:50,491 INFO L714 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 23:34:50,491 INFO L594 BuchiCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 23:34:50,491 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 23:34:50,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 45 transitions. [2020-11-29 23:34:50,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-11-29 23:34:50,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:34:50,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:34:50,492 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:34:50,493 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:34:50,493 INFO L794 eck$LassoCheckResult]: Stem: 331#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 329#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 330#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 332#L553-1 [2020-11-29 23:34:50,493 INFO L796 eck$LassoCheckResult]: Loop: 332#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 333#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 344#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 336#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 337#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 340#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 353#L555-1 assume !test_fun_#t~short8; 350#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 346#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 342#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 332#L553-1 [2020-11-29 23:34:50,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:50,493 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2020-11-29 23:34:50,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:50,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922272531] [2020-11-29 23:34:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash 15810084, now seen corresponding path program 1 times [2020-11-29 23:34:50,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:50,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401640485] [2020-11-29 23:34:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:50,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,549 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:50,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:50,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1871610631, now seen corresponding path program 1 times [2020-11-29 23:34:50,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:34:50,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805923257] [2020-11-29 23:34:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:34:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:34:50,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:34:50,606 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:34:50,879 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2020-11-29 23:34:51,125 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-11-29 23:34:51,211 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:34:51,211 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:34:51,211 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:34:51,211 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:34:51,211 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:34:51,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:51,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:34:51,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:34:51,212 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume-alloca.i_Iteration5_Lasso [2020-11-29 23:34:51,212 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:34:51,212 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:34:51,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,448 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-11-29 23:34:51,557 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 23:34:51,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:51,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:34:52,095 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:34:52,095 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:52,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:34:52,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:52,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:52,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:52,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:52,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:52,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:52,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:52,190 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 [2020-11-29 23:34:52,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:52,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:52,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:52,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:52,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:52,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:52,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:52,243 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 [2020-11-29 23:34:52,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:52,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:52,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:52,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:52,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:52,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:52,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:34:52,297 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 [2020-11-29 23:34:52,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:52,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:52,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:52,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:52,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:52,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:34:52,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:52,365 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 [2020-11-29 23:34:52,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:34:52,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:34:52,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:34:52,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:34:52,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:34:52,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:52,385 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:34:52,401 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 23:34:52,401 INFO L444 ModelExtractionUtils]: 12 out of 19 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:34:52,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:34:52,410 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:34:52,410 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:34:52,410 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2 Supporting invariants [] [2020-11-29 23:34:52,478 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 23:34:52,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 23:34:52,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:34:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:52,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:34:52,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:34:52,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 23:34:52,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:34:52,561 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:34:52,561 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 42 [2020-11-29 23:34:52,562 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,570 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:34:52,596 INFO L625 ElimStorePlain]: treesize reduction 16, result has 59.0 percent of original size [2020-11-29 23:34:52,597 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:34:52,597 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:23 [2020-11-29 23:34:52,619 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,625 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,767 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:34:52,767 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 67 [2020-11-29 23:34:52,772 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:34:52,774 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 23:34:52,783 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:34:52,810 INFO L625 ElimStorePlain]: treesize reduction 49, result has 38.8 percent of original size [2020-11-29 23:34:52,810 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:34:52,810 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:50, output treesize:31 [2020-11-29 23:34:52,847 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:34:52,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,854 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,856 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:34:52,860 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,876 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:34:52,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:05,525 WARN L193 SmtUtils]: Spent 12.57 s on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-11-29 23:35:07,623 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 33 [2020-11-29 23:35:07,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:07,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 23:35:07,689 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:07,690 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 29 [2020-11-29 23:35:07,691 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:07,702 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 29 [2020-11-29 23:35:07,703 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:07,735 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:07,737 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-11-29 23:35:07,738 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:109, output treesize:83 [2020-11-29 23:35:08,633 WARN L193 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-11-29 23:35:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:08,635 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2020-11-29 23:35:08,635 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 13 Second operand 10 states. [2020-11-29 23:35:14,086 WARN L193 SmtUtils]: Spent 4.02 s on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-11-29 23:35:17,287 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2020-11-29 23:35:20,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 45 transitions. cyclomatic complexity: 13. Second operand 10 states. Result 118 states and 150 transitions. Complement of second has 19 states. [2020-11-29 23:35:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 1 stem states 8 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 23:35:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 29 transitions. [2020-11-29 23:35:20,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 29 transitions. Stem has 3 letters. Loop has 10 letters. [2020-11-29 23:35:20,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:20,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 29 transitions. Stem has 13 letters. Loop has 10 letters. [2020-11-29 23:35:20,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:20,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 29 transitions. Stem has 3 letters. Loop has 20 letters. [2020-11-29 23:35:20,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:20,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 150 transitions. [2020-11-29 23:35:20,800 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2020-11-29 23:35:20,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 113 states and 145 transitions. [2020-11-29 23:35:20,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 23:35:20,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-11-29 23:35:20,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 145 transitions. [2020-11-29 23:35:20,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:20,802 INFO L691 BuchiCegarLoop]: Abstraction has 113 states and 145 transitions. [2020-11-29 23:35:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 145 transitions. [2020-11-29 23:35:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 99. [2020-11-29 23:35:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 23:35:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 131 transitions. [2020-11-29 23:35:20,812 INFO L714 BuchiCegarLoop]: Abstraction has 99 states and 131 transitions. [2020-11-29 23:35:20,812 INFO L594 BuchiCegarLoop]: Abstraction has 99 states and 131 transitions. [2020-11-29 23:35:20,813 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 23:35:20,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 131 transitions. [2020-11-29 23:35:20,815 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2020-11-29 23:35:20,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:20,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:20,816 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 23:35:20,816 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 1, 1, 1, 1] [2020-11-29 23:35:20,816 INFO L794 eck$LassoCheckResult]: Stem: 617#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 615#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 616#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 679#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 619#L555-5 [2020-11-29 23:35:20,816 INFO L796 eck$LassoCheckResult]: Loop: 619#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 637#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 622#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 623#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 626#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 629#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 662#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 659#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 658#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 642#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 643#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 634#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 631#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 618#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 619#L555-5 [2020-11-29 23:35:20,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:20,817 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-11-29 23:35:20,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:20,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335059930] [2020-11-29 23:35:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:20,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:20,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:20,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:20,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:20,836 INFO L82 PathProgramCache]: Analyzing trace with hash 527155748, now seen corresponding path program 2 times [2020-11-29 23:35:20,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:20,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979614403] [2020-11-29 23:35:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:20,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:20,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:20,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:20,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1781235253, now seen corresponding path program 1 times [2020-11-29 23:35:20,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:20,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349105938] [2020-11-29 23:35:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:21,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349105938] [2020-11-29 23:35:21,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380800688] [2020-11-29 23:35:21,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:21,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:35:21,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:21,097 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:35:21,097 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,103 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:21,103 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,103 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 23:35:21,109 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-11-29 23:35:21,109 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:21,112 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,112 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:7 [2020-11-29 23:35:21,137 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-11-29 23:35:21,138 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,140 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:21,141 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:21,141 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:7 [2020-11-29 23:35:21,153 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:21,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:35:21,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2020-11-29 23:35:21,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768612505] [2020-11-29 23:35:21,555 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 95 [2020-11-29 23:35:21,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:21,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:35:21,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:35:21,612 INFO L87 Difference]: Start difference. First operand 99 states and 131 transitions. cyclomatic complexity: 38 Second operand 9 states. [2020-11-29 23:35:21,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:21,804 INFO L93 Difference]: Finished difference Result 141 states and 177 transitions. [2020-11-29 23:35:21,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:35:21,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 177 transitions. [2020-11-29 23:35:21,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2020-11-29 23:35:21,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 139 states and 175 transitions. [2020-11-29 23:35:21,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-11-29 23:35:21,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2020-11-29 23:35:21,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 175 transitions. [2020-11-29 23:35:21,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:21,811 INFO L691 BuchiCegarLoop]: Abstraction has 139 states and 175 transitions. [2020-11-29 23:35:21,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 175 transitions. [2020-11-29 23:35:21,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 109. [2020-11-29 23:35:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-29 23:35:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 143 transitions. [2020-11-29 23:35:21,820 INFO L714 BuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2020-11-29 23:35:21,820 INFO L594 BuchiCegarLoop]: Abstraction has 109 states and 143 transitions. [2020-11-29 23:35:21,820 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 23:35:21,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 143 transitions. [2020-11-29 23:35:21,822 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2020-11-29 23:35:21,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:21,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:21,822 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 23:35:21,826 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-29 23:35:21,827 INFO L794 eck$LassoCheckResult]: Stem: 928#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 926#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 927#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 985#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 930#L555-5 [2020-11-29 23:35:21,827 INFO L796 eck$LassoCheckResult]: Loop: 930#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 943#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 968#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 966#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 967#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 947#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 933#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 934#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 937#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 965#L555-1 assume !test_fun_#t~short8; 981#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 980#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 969#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 929#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 930#L555-5 [2020-11-29 23:35:21,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:21,827 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2020-11-29 23:35:21,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:21,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696088530] [2020-11-29 23:35:21,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,857 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:21,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:21,858 INFO L82 PathProgramCache]: Analyzing trace with hash 529002790, now seen corresponding path program 2 times [2020-11-29 23:35:21,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:21,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494379432] [2020-11-29 23:35:21,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,912 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:21,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:21,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1779388211, now seen corresponding path program 2 times [2020-11-29 23:35:21,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:21,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028557098] [2020-11-29 23:35:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:21,965 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:21,973 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:22,338 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2020-11-29 23:35:22,689 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2020-11-29 23:35:22,777 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:35:22,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:35:22,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:35:22,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:35:22,777 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:35:22,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:22,777 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:35:22,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:35:22,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume-alloca.i_Iteration7_Lasso [2020-11-29 23:35:22,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:35:22,777 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:35:22,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:22,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:23,023 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2020-11-29 23:35:23,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:23,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:23,480 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:35:23,481 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:23,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:23,523 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 [2020-11-29 23:35:23,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,525 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,550 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 [2020-11-29 23:35:23,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,580 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 [2020-11-29 23:35:23,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:23,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:23,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:23,642 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 [2020-11-29 23:35:23,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,645 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 [2020-11-29 23:35:23,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:23,687 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 [2020-11-29 23:35:23,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,692 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:23,734 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 [2020-11-29 23:35:23,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,738 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:23,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:23,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,764 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 [2020-11-29 23:35:23,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:23,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:23,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:23,806 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 [2020-11-29 23:35:23,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:23,831 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 [2020-11-29 23:35:23,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:23,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:23,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,859 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 [2020-11-29 23:35:23,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,891 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 [2020-11-29 23:35:23,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,917 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 [2020-11-29 23:35:23,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,941 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 [2020-11-29 23:35:23,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,966 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 [2020-11-29 23:35:23,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:23,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:23,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:23,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:23,992 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 [2020-11-29 23:35:23,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:23,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:23,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:23,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:23,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:23,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:24,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:24,053 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 [2020-11-29 23:35:24,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:24,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:24,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:24,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:24,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:24,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:24,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:24,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:24,084 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:35:24,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:24,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:24,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:24,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:24,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:24,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:24,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:24,145 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 [2020-11-29 23:35:24,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:24,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:24,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:24,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:24,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:24,155 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 [2020-11-29 23:35:24,166 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:35:24,196 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 23:35:24,196 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:24,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:35:24,213 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:35:24,213 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:35:24,214 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_3 Supporting invariants [] [2020-11-29 23:35:24,279 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 23:35:24,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 23:35:24,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:24,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:24,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:24,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 23:35:24,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:24,361 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:24,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:24,469 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:24,470 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 64 [2020-11-29 23:35:24,475 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-29 23:35:24,476 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:24,487 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,552 INFO L625 ElimStorePlain]: treesize reduction 26, result has 81.7 percent of original size [2020-11-29 23:35:24,552 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,553 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:116 [2020-11-29 23:35:24,595 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:24,596 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:24,619 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 39 [2020-11-29 23:35:24,622 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,634 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:24,634 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 39 [2020-11-29 23:35:24,636 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,703 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:24,703 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 23:35:24,703 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:129, output treesize:131 [2020-11-29 23:35:24,754 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:24,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 23:35:24,778 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 56 [2020-11-29 23:35:24,779 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,786 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:24,786 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 50 [2020-11-29 23:35:24,787 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:24,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:24,820 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 23:35:24,820 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:165, output treesize:139 [2020-11-29 23:35:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:24,880 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2020-11-29 23:35:24,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 143 transitions. cyclomatic complexity: 40 Second operand 8 states. [2020-11-29 23:35:25,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 143 transitions. cyclomatic complexity: 40. Second operand 8 states. Result 281 states and 357 transitions. Complement of second has 27 states. [2020-11-29 23:35:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 1 stem states 12 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 23:35:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 32 transitions. [2020-11-29 23:35:25,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 32 transitions. Stem has 4 letters. Loop has 14 letters. [2020-11-29 23:35:25,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:25,765 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:35:25,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:25,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:25,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:25,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 23:35:25,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:25,827 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:25,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:25,912 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:25,912 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 64 [2020-11-29 23:35:25,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:25,916 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 23:35:25,928 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:25,988 INFO L625 ElimStorePlain]: treesize reduction 75, result has 39.0 percent of original size [2020-11-29 23:35:25,988 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:25,989 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:48 [2020-11-29 23:35:26,042 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 35 [2020-11-29 23:35:26,043 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:26,059 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:26,059 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 35 [2020-11-29 23:35:26,061 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:26,111 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:26,112 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 23:35:26,112 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:121, output treesize:123 [2020-11-29 23:35:26,164 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:26,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 23:35:26,200 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:26,200 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 52 [2020-11-29 23:35:26,201 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:26,208 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 46 [2020-11-29 23:35:26,209 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:26,249 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:26,249 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-11-29 23:35:26,249 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:157, output treesize:131 [2020-11-29 23:35:26,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:26,338 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2020-11-29 23:35:26,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 109 states and 143 transitions. cyclomatic complexity: 40 Second operand 8 states. [2020-11-29 23:35:27,421 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 109 states and 143 transitions. cyclomatic complexity: 40. Second operand 8 states. Result 361 states and 453 transitions. Complement of second has 31 states. [2020-11-29 23:35:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 1 stem states 14 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 23:35:27,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 35 transitions. [2020-11-29 23:35:27,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 35 transitions. Stem has 4 letters. Loop has 14 letters. [2020-11-29 23:35:27,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:27,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 35 transitions. Stem has 18 letters. Loop has 14 letters. [2020-11-29 23:35:27,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:27,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 35 transitions. Stem has 4 letters. Loop has 28 letters. [2020-11-29 23:35:27,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:27,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 361 states and 453 transitions. [2020-11-29 23:35:27,426 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 38 [2020-11-29 23:35:27,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 361 states to 290 states and 370 transitions. [2020-11-29 23:35:27,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2020-11-29 23:35:27,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2020-11-29 23:35:27,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 290 states and 370 transitions. [2020-11-29 23:35:27,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:27,436 INFO L691 BuchiCegarLoop]: Abstraction has 290 states and 370 transitions. [2020-11-29 23:35:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states and 370 transitions. [2020-11-29 23:35:27,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 233. [2020-11-29 23:35:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-29 23:35:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 304 transitions. [2020-11-29 23:35:27,469 INFO L714 BuchiCegarLoop]: Abstraction has 233 states and 304 transitions. [2020-11-29 23:35:27,470 INFO L594 BuchiCegarLoop]: Abstraction has 233 states and 304 transitions. [2020-11-29 23:35:27,470 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 23:35:27,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 233 states and 304 transitions. [2020-11-29 23:35:27,471 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2020-11-29 23:35:27,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:27,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:27,472 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 23:35:27,472 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:35:27,472 INFO L794 eck$LassoCheckResult]: Stem: 1956#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1954#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1955#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1957#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1958#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 1971#L555-1 [2020-11-29 23:35:27,472 INFO L796 eck$LassoCheckResult]: Loop: 1971#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 1962#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1963#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 1966#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 1971#L555-1 [2020-11-29 23:35:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:27,473 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2020-11-29 23:35:27,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:27,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053921223] [2020-11-29 23:35:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:27,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1547289, now seen corresponding path program 1 times [2020-11-29 23:35:27,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:27,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011090501] [2020-11-29 23:35:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,508 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:27,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:27,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1271571777, now seen corresponding path program 1 times [2020-11-29 23:35:27,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:27,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991112761] [2020-11-29 23:35:27,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:27,527 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:27,530 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:27,649 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-11-29 23:35:27,969 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-11-29 23:35:28,077 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-29 23:35:28,080 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:35:28,080 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:35:28,080 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:35:28,080 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:35:28,080 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:35:28,080 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:28,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:35:28,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:35:28,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume-alloca.i_Iteration8_Lasso [2020-11-29 23:35:28,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:35:28,080 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:35:28,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,659 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-11-29 23:35:28,765 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-29 23:35:28,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:28,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:29,402 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-11-29 23:35:29,561 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-29 23:35:29,607 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:35:29,608 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:29,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:29,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:29,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:29,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:29,659 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 [2020-11-29 23:35:29,660 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:29,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:29,685 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 [2020-11-29 23:35:29,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:29,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:29,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:29,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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 [2020-11-29 23:35:29,709 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 [2020-11-29 23:35:29,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:29,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:29,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:29,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/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) [2020-11-29 23:35:29,743 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 [2020-11-29 23:35:29,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:29,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:35:29,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,828 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 [2020-11-29 23:35:29,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:29,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,859 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 [2020-11-29 23:35:29,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:29,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:29,925 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 [2020-11-29 23:35:29,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:29,969 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 [2020-11-29 23:35:29,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:29,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:29,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:29,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:29,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:29,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:29,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:30,018 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 [2020-11-29 23:35:30,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:30,021 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 23:35:30,021 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 23:35:30,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:30,055 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-11-29 23:35:30,055 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:35:30,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:35:30,230 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-29 23:35:30,230 INFO L444 ModelExtractionUtils]: 21 out of 46 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:30,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:30,238 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 23:35:30,238 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:35:30,238 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_4) = -2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_4 + 2147483647 Supporting invariants [] [2020-11-29 23:35:30,300 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 23:35:30,301 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 23:35:30,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:30,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:30,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:30,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:35:30,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:30,341 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:30,392 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2020-11-29 23:35:30,393 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,402 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:30,402 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,402 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:47 [2020-11-29 23:35:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:30,420 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-29 23:35:30,421 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 233 states and 304 transitions. cyclomatic complexity: 84 Second operand 5 states. [2020-11-29 23:35:30,455 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 233 states and 304 transitions. cyclomatic complexity: 84. Second operand 5 states. Result 372 states and 485 transitions. Complement of second has 9 states. [2020-11-29 23:35:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:35:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-29 23:35:30,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 23:35:30,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:30,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-29 23:35:30,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:30,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-29 23:35:30,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:30,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 372 states and 485 transitions. [2020-11-29 23:35:30,465 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2020-11-29 23:35:30,468 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 372 states to 317 states and 410 transitions. [2020-11-29 23:35:30,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2020-11-29 23:35:30,469 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-11-29 23:35:30,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 317 states and 410 transitions. [2020-11-29 23:35:30,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:30,470 INFO L691 BuchiCegarLoop]: Abstraction has 317 states and 410 transitions. [2020-11-29 23:35:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states and 410 transitions. [2020-11-29 23:35:30,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 266. [2020-11-29 23:35:30,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-29 23:35:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 349 transitions. [2020-11-29 23:35:30,481 INFO L714 BuchiCegarLoop]: Abstraction has 266 states and 349 transitions. [2020-11-29 23:35:30,481 INFO L594 BuchiCegarLoop]: Abstraction has 266 states and 349 transitions. [2020-11-29 23:35:30,481 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 23:35:30,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 349 transitions. [2020-11-29 23:35:30,484 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2020-11-29 23:35:30,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:30,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:30,484 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:30,485 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:30,485 INFO L794 eck$LassoCheckResult]: Stem: 2661#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2659#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 2660#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 2676#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 2842#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 2807#L555-1 assume !test_fun_#t~short8; 2737#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 2732#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 2686#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 2687#L553-1 [2020-11-29 23:35:30,485 INFO L796 eck$LassoCheckResult]: Loop: 2687#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 2735#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 2725#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 2662#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 2663#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 2707#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 2693#L555-1 assume !test_fun_#t~short8; 2695#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 2679#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 2680#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 2687#L553-1 [2020-11-29 23:35:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629551, now seen corresponding path program 2 times [2020-11-29 23:35:30,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:30,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142492527] [2020-11-29 23:35:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:30,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:30,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:30,547 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:30,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:30,548 INFO L82 PathProgramCache]: Analyzing trace with hash 15810084, now seen corresponding path program 3 times [2020-11-29 23:35:30,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:30,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214630014] [2020-11-29 23:35:30,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:30,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:30,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:30,572 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1831564178, now seen corresponding path program 3 times [2020-11-29 23:35:30,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:30,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082862890] [2020-11-29 23:35:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:30,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:35:30,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082862890] [2020-11-29 23:35:30,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009477537] [2020-11-29 23:35:30,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:30,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-29 23:35:30,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:35:30,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-29 23:35:30,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:30,815 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-29 23:35:30,818 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,823 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:30,824 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,824 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:4 [2020-11-29 23:35:30,844 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:35:30,844 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,855 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:30,855 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,855 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:12 [2020-11-29 23:35:30,857 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:30,863 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:30,961 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-11-29 23:35:30,962 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,969 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:30,970 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,970 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:19 [2020-11-29 23:35:30,992 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2020-11-29 23:35:30,993 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,999 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:30,999 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:30,999 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:19 [2020-11-29 23:35:31,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,010 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:35:31,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:35:31,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2020-11-29 23:35:31,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615404546] [2020-11-29 23:35:31,279 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2020-11-29 23:35:31,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:31,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 23:35:31,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:35:31,318 INFO L87 Difference]: Start difference. First operand 266 states and 349 transitions. cyclomatic complexity: 98 Second operand 13 states. [2020-11-29 23:35:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:31,510 INFO L93 Difference]: Finished difference Result 313 states and 355 transitions. [2020-11-29 23:35:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 23:35:31,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 313 states and 355 transitions. [2020-11-29 23:35:31,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 38 [2020-11-29 23:35:31,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 313 states to 139 states and 158 transitions. [2020-11-29 23:35:31,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-11-29 23:35:31,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2020-11-29 23:35:31,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 158 transitions. [2020-11-29 23:35:31,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:31,515 INFO L691 BuchiCegarLoop]: Abstraction has 139 states and 158 transitions. [2020-11-29 23:35:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 158 transitions. [2020-11-29 23:35:31,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 130. [2020-11-29 23:35:31,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-29 23:35:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2020-11-29 23:35:31,520 INFO L714 BuchiCegarLoop]: Abstraction has 130 states and 149 transitions. [2020-11-29 23:35:31,520 INFO L594 BuchiCegarLoop]: Abstraction has 130 states and 149 transitions. [2020-11-29 23:35:31,520 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 23:35:31,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 149 transitions. [2020-11-29 23:35:31,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2020-11-29 23:35:31,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:31,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:31,521 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:31,521 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-29 23:35:31,521 INFO L794 eck$LassoCheckResult]: Stem: 3318#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3316#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3317#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 3363#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3362#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3357#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3358#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3353#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3354#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3350#L555-1 assume !test_fun_#t~short8; 3349#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 3348#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 3346#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 3334#L553-1 [2020-11-29 23:35:31,522 INFO L796 eck$LassoCheckResult]: Loop: 3334#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3413#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3410#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3408#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3406#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3403#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3401#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3398#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3399#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3392#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3393#L555-1 assume !test_fun_#t~short8; 3344#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 3345#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 3333#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 3334#L553-1 [2020-11-29 23:35:31,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:31,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1871610631, now seen corresponding path program 4 times [2020-11-29 23:35:31,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:31,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166220882] [2020-11-29 23:35:31,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:31,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:31,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:31,543 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:31,543 INFO L82 PathProgramCache]: Analyzing trace with hash 535533500, now seen corresponding path program 4 times [2020-11-29 23:35:31,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:31,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664257769] [2020-11-29 23:35:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:31,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:31,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:31,561 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:31,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:31,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1585620926, now seen corresponding path program 5 times [2020-11-29 23:35:31,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:31,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867395015] [2020-11-29 23:35:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:35:31,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867395015] [2020-11-29 23:35:31,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183827667] [2020-11-29 23:35:31,700 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:35:31,763 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2020-11-29 23:35:31,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:35:31,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 23:35:31,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:31,774 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 23:35:31,774 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:31,776 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:31,776 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:31,776 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2020-11-29 23:35:31,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,788 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,891 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:31,891 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 61 [2020-11-29 23:35:31,892 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 23:35:31,893 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,896 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:31,933 INFO L625 ElimStorePlain]: treesize reduction 16, result has 75.4 percent of original size [2020-11-29 23:35:31,933 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:31,933 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:49 [2020-11-29 23:35:31,965 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:31,972 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:32,115 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:32,115 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:32,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 23:35:32,152 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:32,152 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 26 [2020-11-29 23:35:32,153 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:32,159 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 26 [2020-11-29 23:35:32,160 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:32,184 INFO L625 ElimStorePlain]: treesize reduction 37, result has 37.3 percent of original size [2020-11-29 23:35:32,185 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:32,185 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:95, output treesize:22 [2020-11-29 23:35:32,249 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:32,249 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 60 [2020-11-29 23:35:32,251 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:35:32,252 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-11-29 23:35:32,260 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:32,296 INFO L625 ElimStorePlain]: treesize reduction 41, result has 43.1 percent of original size [2020-11-29 23:35:32,297 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:32,297 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:31 [2020-11-29 23:35:32,333 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:32,336 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:32,352 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:32,354 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:32,355 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:32,357 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:32,360 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:35:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:35:32,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:35:32,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2020-11-29 23:35:32,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651072523] [2020-11-29 23:35:32,783 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 92 [2020-11-29 23:35:32,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:32,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-29 23:35:32,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2020-11-29 23:35:32,872 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. cyclomatic complexity: 27 Second operand 22 states. [2020-11-29 23:35:33,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:33,367 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2020-11-29 23:35:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 23:35:33,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 113 transitions. [2020-11-29 23:35:33,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:35:33,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 69 states and 78 transitions. [2020-11-29 23:35:33,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-29 23:35:33,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-29 23:35:33,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 78 transitions. [2020-11-29 23:35:33,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:35:33,370 INFO L691 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-11-29 23:35:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 78 transitions. [2020-11-29 23:35:33,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 42. [2020-11-29 23:35:33,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 23:35:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-11-29 23:35:33,372 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-11-29 23:35:33,372 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-11-29 23:35:33,372 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 23:35:33,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 49 transitions. [2020-11-29 23:35:33,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:35:33,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:35:33,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:35:33,373 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-29 23:35:33,373 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:35:33,374 INFO L794 eck$LassoCheckResult]: Stem: 3679#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3677#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~ret16;test_fun_#in~x, test_fun_#in~y := main_#t~nondet14, main_#t~nondet15;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~mem7, test_fun_#t~short8, test_fun_#t~mem12, test_fun_#t~mem4, test_fun_#t~mem13, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3678#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 3684#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3685#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3715#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3714#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3713#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3712#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3711#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3710#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3709#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3708#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3697#L555-1 assume !test_fun_#t~short8; 3695#L555-3 assume !test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5; 3694#L555-6 call test_fun_#t~mem12 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem12; 3693#L553-3 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 3686#L553-1 assume !!(test_fun_#t~mem4 >= 0);havoc test_fun_#t~mem4;call write~int(1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3687#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3691#L555-1 [2020-11-29 23:35:33,374 INFO L796 eck$LassoCheckResult]: Loop: 3691#L555-1 assume test_fun_#t~short8;call test_fun_#t~mem7 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem7 < 1073741824; 3680#L555-3 assume !!test_fun_#t~short8;havoc test_fun_#t~mem6;havoc test_fun_#t~short8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem5;call test_fun_#t~mem9 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 3681#L556 assume !(test_fun_#t~mem9 <= 0);havoc test_fun_#t~mem9;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(2 * test_fun_#t~mem11, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 3688#L555-5 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short8 := test_fun_#t~mem5 > test_fun_#t~mem6; 3691#L555-1 [2020-11-29 23:35:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:33,374 INFO L82 PathProgramCache]: Analyzing trace with hash 673540324, now seen corresponding path program 6 times [2020-11-29 23:35:33,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:33,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085238194] [2020-11-29 23:35:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,402 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:33,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1547289, now seen corresponding path program 2 times [2020-11-29 23:35:33,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:33,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670878831] [2020-11-29 23:35:33,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,411 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:33,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1405606780, now seen corresponding path program 7 times [2020-11-29 23:35:33,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:33,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216197853] [2020-11-29 23:35:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:33,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:33,445 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:33,596 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-11-29 23:35:35,656 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 202 DAG size of output: 150 [2020-11-29 23:35:35,866 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-29 23:35:35,868 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:35:35,869 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:35:35,869 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:35:35,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:35:35,869 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:35:35,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:35,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:35:35,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:35:35,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume-alloca.i_Iteration11_Lasso [2020-11-29 23:35:35,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:35:35,869 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:35:35,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:35,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,082 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-11-29 23:35:36,205 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-29 23:35:36,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:35:36,688 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-29 23:35:36,822 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:35:36,822 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,824 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 [2020-11-29 23:35:36,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:36,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:36,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:36,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:36,857 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 [2020-11-29 23:35:36,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,862 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:36,862 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,892 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 [2020-11-29 23:35:36,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:36,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:36,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,918 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 [2020-11-29 23:35:36,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:36,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:36,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:36,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,943 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 [2020-11-29 23:35:36,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:36,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:36,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:36,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:36,967 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 [2020-11-29 23:35:36,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:36,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:36,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:36,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:36,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:36,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:36,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,008 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 [2020-11-29 23:35:37,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:37,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:37,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:37,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:37,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:37,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:37,010 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:37,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,035 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 [2020-11-29 23:35:37,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:37,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:35:37,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:37,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:37,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:37,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:35:37,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:35:37,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,059 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 [2020-11-29 23:35:37,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:37,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:37,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:37,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:37,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:37,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:37,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:35:37,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:37,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:37,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:35:37,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:37,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:35:37,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:35:37,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,118 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 [2020-11-29 23:35:37,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:35:37,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:35:37,120 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 23:35:37,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:35:37,162 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-29 23:35:37,162 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:35:37,230 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:35:37,329 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 23:35:37,329 INFO L444 ModelExtractionUtils]: 20 out of 46 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6337a77-17a0-4aaa-804f-ca9628f3f912/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:35:37,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:35:37,337 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-11-29 23:35:37,337 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:35:37,337 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_5) = -2*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_5 + 2147483647 Supporting invariants [] [2020-11-29 23:35:37,421 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 23:35:37,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 23:35:37,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,499 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:37,554 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2020-11-29 23:35:37,556 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,571 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:37,571 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,571 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:41 [2020-11-29 23:35:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:37,596 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-29 23:35:37,596 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-11-29 23:35:37,640 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10. Second operand 5 states. Result 56 states and 66 transitions. Complement of second has 9 states. [2020-11-29 23:35:37,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:35:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-11-29 23:35:37,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 19 letters. Loop has 4 letters. [2020-11-29 23:35:37,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:37,641 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:35:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:37,759 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2020-11-29 23:35:37,760 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,772 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:37,772 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:47 [2020-11-29 23:35:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:37,798 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-29 23:35:37,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-11-29 23:35:37,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10. Second operand 5 states. Result 55 states and 64 transitions. Complement of second has 11 states. [2020-11-29 23:35:37,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:35:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2020-11-29 23:35:37,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 19 letters. Loop has 4 letters. [2020-11-29 23:35:37,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:37,853 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:35:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:37,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:35:37,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:37,908 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:35:37,987 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2020-11-29 23:35:37,988 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,996 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:35:37,996 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:35:37,996 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:47 [2020-11-29 23:35:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:38,015 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 4 loop predicates [2020-11-29 23:35:38,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-11-29 23:35:38,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 49 transitions. cyclomatic complexity: 10. Second operand 5 states. Result 69 states and 84 transitions. Complement of second has 10 states. [2020-11-29 23:35:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 23:35:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:35:38,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-11-29 23:35:38,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 19 letters. Loop has 4 letters. [2020-11-29 23:35:38,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:38,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 23 letters. Loop has 4 letters. [2020-11-29 23:35:38,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:38,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 19 letters. Loop has 8 letters. [2020-11-29 23:35:38,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:35:38,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 84 transitions. [2020-11-29 23:35:38,050 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:35:38,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 0 states and 0 transitions. [2020-11-29 23:35:38,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:35:38,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:35:38,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:35:38,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:35:38,051 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:38,051 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:38,051 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:38,051 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 23:35:38,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:38,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:35:38,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:35:38,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:35:38 BoogieIcfgContainer [2020-11-29 23:35:38,055 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:35:38,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:38,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:38,055 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:38,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:34:46" (3/4) ... [2020-11-29 23:35:38,058 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:35:38,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:38,059 INFO L168 Benchmark]: Toolchain (without parser) took 52451.43 ms. Allocated memory was 100.7 MB in the beginning and 268.4 MB in the end (delta: 167.8 MB). Free memory was 63.8 MB in the beginning and 103.9 MB in the end (delta: -40.0 MB). Peak memory consumption was 126.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,059 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory was 80.9 MB in the beginning and 80.9 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:38,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.94 ms. Allocated memory is still 100.7 MB. Free memory was 63.6 MB in the beginning and 67.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.57 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,060 INFO L168 Benchmark]: Boogie Preprocessor took 24.02 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 64.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,061 INFO L168 Benchmark]: RCFGBuilder took 376.89 ms. Allocated memory is still 100.7 MB. Free memory was 64.2 MB in the beginning and 48.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,061 INFO L168 Benchmark]: BuchiAutomizer took 51501.54 ms. Allocated memory was 100.7 MB in the beginning and 268.4 MB in the end (delta: 167.8 MB). Free memory was 48.5 MB in the beginning and 104.9 MB in the end (delta: -56.4 MB). Peak memory consumption was 114.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:38,061 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 268.4 MB. Free memory was 104.9 MB in the beginning and 103.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:38,063 INFO L339 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 100.7 MB. Free memory was 80.9 MB in the beginning and 80.9 MB in the end (delta: 36.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.94 ms. Allocated memory is still 100.7 MB. Free memory was 63.6 MB in the beginning and 67.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.57 ms. Allocated memory is still 100.7 MB. Free memory was 67.2 MB in the beginning and 65.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.02 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 64.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 376.89 ms. Allocated memory is still 100.7 MB. Free memory was 64.2 MB in the beginning and 48.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 51501.54 ms. Allocated memory was 100.7 MB in the beginning and 268.4 MB in the end (delta: 167.8 MB). Free memory was 48.5 MB in the beginning and 104.9 MB in the end (delta: -56.4 MB). Peak memory consumption was 114.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.09 ms. Allocated memory is still 268.4 MB. Free memory was 104.9 MB in the beginning and 103.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 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 - 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 11 terminating modules (6 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[x_ref][x_ref] + 1 and consists of 5 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 10 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 16 locations. One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[y_ref][y_ref] + 2147483647 and consists of 5 locations. One nondeterministic module has affine ranking function -2 * unknown-#memory_int-unknown[y_ref][y_ref] + 2147483647 and consists of 5 locations. 6 modules have a trivial ranking function, the largest among these consists of 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 51.4s and 12 iterations. TraceHistogramMax:4. Analysis of lassos took 17.3s. Construction of modules took 5.8s. Büchi inclusion checks took 27.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 210 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 266 states and ocurred in iteration 8. Nontrivial modules had stage [3, 1, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/13 HoareTripleCheckerStatistics: 93 SDtfs, 189 SDslu, 84 SDs, 0 SdLazy, 752 SolverSat, 178 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 5.8s Time LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital310 mio100 ax106 hnf99 lsp92 ukn57 mio100 lsp36 div100 bol105 ite100 ukn100 eq165 hnf90 smp94 dnf172 smp82 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 222ms VariablesStem: 8 VariablesLoop: 8 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...