./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:30:38,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:30:38,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:30:38,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:30:38,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:30:38,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:30:38,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:30:38,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:30:38,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:30:38,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:30:38,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:30:38,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:30:38,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:30:38,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:30:38,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:30:38,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:30:38,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:30:38,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:30:38,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:30:38,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:30:38,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:30:38,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:30:38,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:30:38,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:30:38,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:30:38,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:30:38,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:30:38,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:30:38,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:30:38,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:30:38,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:30:38,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:30:38,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:30:38,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:30:38,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:30:38,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:30:38,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:30:38,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:30:38,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:30:38,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:30:38,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:30:38,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 22:30:38,778 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:30:38,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:30:38,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:30:38,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:30:38,780 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:30:38,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:30:38,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:30:38,780 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:30:38,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:30:38,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:30:38,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:30:38,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:30:38,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:30:38,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:30:38,782 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:30:38,783 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:30:38,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:30:38,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:30:38,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:30:38,783 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:30:38,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:30:38,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:30:38,784 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:30:38,785 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:30:38,785 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09e9c2546f4b38561ae63bf5b67ae3d7f5a4eb9b [2019-11-19 22:30:38,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:30:38,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:30:38,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:30:38,959 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:30:38,959 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:30:38,960 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/../../sv-benchmarks/c/termination-15/count_up_alloca.i [2019-11-19 22:30:39,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/data/cdb195cde/256737f51815440392c1f109952c9414/FLAGec355a7f2 [2019-11-19 22:30:39,473 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:30:39,474 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/sv-benchmarks/c/termination-15/count_up_alloca.i [2019-11-19 22:30:39,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/data/cdb195cde/256737f51815440392c1f109952c9414/FLAGec355a7f2 [2019-11-19 22:30:39,982 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/data/cdb195cde/256737f51815440392c1f109952c9414 [2019-11-19 22:30:39,988 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:30:39,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:30:39,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:39,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:30:39,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:30:39,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:39" (1/1) ... [2019-11-19 22:30:39,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cc6209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:39, skipping insertion in model container [2019-11-19 22:30:39,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:39" (1/1) ... [2019-11-19 22:30:40,002 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:30:40,035 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:30:40,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:40,372 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:30:40,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:30:40,475 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:30:40,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40 WrapperNode [2019-11-19 22:30:40,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:30:40,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:40,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:30:40,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:30:40,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:30:40,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:30:40,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:30:40,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:30:40,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... [2019-11-19 22:30:40,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:30:40,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:30:40,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:30:40,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:30:40,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:30:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:30:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:30:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:30:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:30:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:30:40,870 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:30:40,870 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-19 22:30:40,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40 BoogieIcfgContainer [2019-11-19 22:30:40,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:30:40,872 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:30:40,872 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:30:40,875 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:30:40,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:40,876 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:30:39" (1/3) ... [2019-11-19 22:30:40,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2568d1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:30:40, skipping insertion in model container [2019-11-19 22:30:40,886 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:40,886 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:40" (2/3) ... [2019-11-19 22:30:40,887 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2568d1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:30:40, skipping insertion in model container [2019-11-19 22:30:40,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:30:40,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40" (3/3) ... [2019-11-19 22:30:40,888 INFO L371 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2019-11-19 22:30:40,935 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:30:40,936 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:30:40,936 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:30:40,936 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:30:40,936 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:30:40,936 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:30:40,936 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:30:40,937 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:30:40,949 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-19 22:30:40,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-19 22:30:40,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:40,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:40,976 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 22:30:40,976 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:30:40,976 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:30:40,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-19 22:30:40,978 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2019-11-19 22:30:40,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:40,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:40,979 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 22:30:40,979 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:30:40,986 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 15#L369true assume !(main_~length~0 < 1); 20#L369-2true call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 12#L371true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L372-3true [2019-11-19 22:30:40,987 INFO L796 eck$LassoCheckResult]: Loop: 16#L372-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 7#L374true assume main_~val~0 > main_~limit~0;main_~val~0 := main_~limit~0; 10#L374-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 13#L372-2true main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 16#L372-3true [2019-11-19 22:30:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:40,992 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-19 22:30:41,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:41,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834587928] [2019-11-19 22:30:41,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2019-11-19 22:30:41,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:41,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766542085] [2019-11-19 22:30:41,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,192 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:41,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2019-11-19 22:30:41,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:41,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758023623] [2019-11-19 22:30:41,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:41,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:41,508 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-11-19 22:30:41,573 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:30:41,574 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:30:41,574 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:30:41,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:30:41,574 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:30:41,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:41,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:30:41,575 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:30:41,575 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2019-11-19 22:30:41,575 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:30:41,575 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:30:41,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:41,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:42,032 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:30:42,037 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/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) [2019-11-19 22:30:42,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/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) [2019-11-19 22:30:42,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:42,096 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:42,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:42,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:42,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:42,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/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) [2019-11-19 22:30:42,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:42,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:42,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:42,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:42,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:42,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:42,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:42,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:42,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:42,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:42,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:42,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:42,301 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:42,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:42,317 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:30:42,357 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-19 22:30:42,358 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:42,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:30:42,376 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:30:42,377 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:30:42,377 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1) = -1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207.base)_1 Supporting invariants [] [2019-11-19 22:30:42,391 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 22:30:42,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 22:30:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:42,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:30:42,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:42,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:30:42,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:42,535 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:30:42,536 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 5 states. [2019-11-19 22:30:42,629 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 5 states. Result 40 states and 57 transitions. Complement of second has 9 states. [2019-11-19 22:30:42,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 22:30:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 37 transitions. [2019-11-19 22:30:42,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-19 22:30:42,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:42,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-19 22:30:42,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:42,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 37 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-19 22:30:42,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:42,636 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 57 transitions. [2019-11-19 22:30:42,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:30:42,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 15 states and 20 transitions. [2019-11-19 22:30:42,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:30:42,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 22:30:42,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-11-19 22:30:42,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:42,646 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-19 22:30:42,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-11-19 22:30:42,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-19 22:30:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 22:30:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-19 22:30:42,671 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-19 22:30:42,671 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-19 22:30:42,671 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:30:42,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-19 22:30:42,672 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:30:42,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:42,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:42,673 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:42,673 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:30:42,673 INFO L794 eck$LassoCheckResult]: Stem: 141#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 139#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 140#L369 assume !(main_~length~0 < 1); 145#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 142#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 143#L372-3 assume !(main_~i~0 < main_~length~0); 146#L372-4 main_~j~0 := 0; 133#L379-3 [2019-11-19 22:30:42,674 INFO L796 eck$LassoCheckResult]: Loop: 133#L379-3 assume !!(main_~j~0 < main_~length~0); 134#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 135#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 132#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 133#L379-3 [2019-11-19 22:30:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2019-11-19 22:30:42,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:42,675 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778093131] [2019-11-19 22:30:42,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:42,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778093131] [2019-11-19 22:30:42,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:30:42,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 22:30:42,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746027360] [2019-11-19 22:30:42,746 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 22:30:42,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2019-11-19 22:30:42,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:42,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932911845] [2019-11-19 22:30:42,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:42,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:42,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 22:30:42,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 22:30:42,799 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-19 22:30:42,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:42,833 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-19 22:30:42,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:30:42,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-19 22:30:42,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:30:42,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2019-11-19 22:30:42,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-19 22:30:42,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 22:30:42,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-11-19 22:30:42,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:42,837 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-19 22:30:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-11-19 22:30:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2019-11-19 22:30:42,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 22:30:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2019-11-19 22:30:42,839 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-19 22:30:42,839 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2019-11-19 22:30:42,839 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 22:30:42,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2019-11-19 22:30:42,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-19 22:30:42,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:42,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:42,840 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:42,840 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 22:30:42,843 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 180#L369 assume !(main_~length~0 < 1); 186#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 182#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 183#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 176#L374 assume !(main_~val~0 > main_~limit~0); 177#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 178#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 184#L372-3 assume !(main_~i~0 < main_~length~0); 185#L372-4 main_~j~0 := 0; 175#L379-3 [2019-11-19 22:30:42,843 INFO L796 eck$LassoCheckResult]: Loop: 175#L379-3 assume !!(main_~j~0 < main_~length~0); 172#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 173#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 174#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 175#L379-3 [2019-11-19 22:30:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2019-11-19 22:30:42,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:42,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044626854] [2019-11-19 22:30:42,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2019-11-19 22:30:42,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:42,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689468057] [2019-11-19 22:30:42,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,888 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:42,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:42,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2019-11-19 22:30:42,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:42,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888342519] [2019-11-19 22:30:42,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:42,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:43,158 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-11-19 22:30:43,218 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:30:43,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:30:43,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:30:43,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:30:43,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:30:43,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:30:43,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:30:43,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2019-11-19 22:30:43,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:30:43,220 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:30:43,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:43,706 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:30:43,707 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:43,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:43,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:43,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:43,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:43,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:43,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:43,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:43,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 22:30:43,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:43,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:43,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:43,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:43,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,881 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,881 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:43,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:43,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:43,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:43,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:43,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:43,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:43,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:43,912 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:30:43,965 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-19 22:30:43,965 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:43,969 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:30:43,971 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:30:43,971 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:30:43,971 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-19 22:30:43,985 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-19 22:30:43,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:44,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:30:44,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:44,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:30:44,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:44,030 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 22:30:44,031 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-11-19 22:30:44,044 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 20 states and 26 transitions. Complement of second has 4 states. [2019-11-19 22:30:44,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:30:44,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-19 22:30:44,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-19 22:30:44,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:44,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 4 letters. [2019-11-19 22:30:44,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:44,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 8 letters. [2019-11-19 22:30:44,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:44,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2019-11-19 22:30:44,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:44,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2019-11-19 22:30:44,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:30:44,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-19 22:30:44,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2019-11-19 22:30:44,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:30:44,049 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-11-19 22:30:44,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2019-11-19 22:30:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-19 22:30:44,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 22:30:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2019-11-19 22:30:44,051 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-19 22:30:44,051 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-19 22:30:44,051 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 22:30:44,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2019-11-19 22:30:44,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:44,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:44,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:44,052 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:44,052 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:30:44,052 INFO L794 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 293#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 294#L369 assume !(main_~length~0 < 1); 300#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 297#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 298#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 291#L374 assume !(main_~val~0 > main_~limit~0); 292#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 295#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 299#L372-3 assume !(main_~i~0 < main_~length~0); 301#L372-4 main_~j~0 := 0; 290#L379-3 assume !!(main_~j~0 < main_~length~0); 284#L380-3 [2019-11-19 22:30:44,053 INFO L796 eck$LassoCheckResult]: Loop: 284#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 285#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 284#L380-3 [2019-11-19 22:30:44,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:44,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2019-11-19 22:30:44,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:44,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696701292] [2019-11-19 22:30:44,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,077 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:44,077 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2019-11-19 22:30:44,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:44,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917400674] [2019-11-19 22:30:44,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,085 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:44,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:44,086 INFO L82 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2019-11-19 22:30:44,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:44,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686779772] [2019-11-19 22:30:44,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:44,126 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:44,309 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-11-19 22:30:44,365 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:30:44,365 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:30:44,365 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:30:44,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:30:44,365 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:30:44,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:44,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:30:44,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:30:44,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2019-11-19 22:30:44,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:30:44,366 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:30:44,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:44,823 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:30:44,823 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:44,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:44,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:44,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 22:30:44,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:44,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:44,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:44,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 22:30:44,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:44,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:44,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:44,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:44,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:44,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:44,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:44,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:44,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:44,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:44,859 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 [2019-11-19 22:30:44,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:44,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:44,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:44,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:44,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:44,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:44,873 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:30:44,885 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-19 22:30:44,885 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:44,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 22:30:44,891 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:30:44,891 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:30:44,891 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_2 Supporting invariants [] [2019-11-19 22:30:44,903 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-19 22:30:44,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:30:44,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:44,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 22:30:44,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:44,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:30:44,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:44,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:44,968 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-19 22:30:44,969 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-19 22:30:45,034 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 35 transitions. Complement of second has 8 states. [2019-11-19 22:30:45,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:45,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 22:30:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2019-11-19 22:30:45,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-19 22:30:45,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:45,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-19 22:30:45,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:45,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-19 22:30:45,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:45,036 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2019-11-19 22:30:45,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:45,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2019-11-19 22:30:45,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:30:45,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-19 22:30:45,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2019-11-19 22:30:45,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:30:45,038 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2019-11-19 22:30:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2019-11-19 22:30:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-11-19 22:30:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-19 22:30:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2019-11-19 22:30:45,041 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-19 22:30:45,041 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-19 22:30:45,041 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 22:30:45,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2019-11-19 22:30:45,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:45,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:45,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:45,042 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:45,042 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:30:45,042 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 429#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 430#L369 assume !(main_~length~0 < 1); 436#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 432#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 433#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 426#L374 assume !(main_~val~0 > main_~limit~0); 427#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 428#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 434#L372-3 assume !(main_~i~0 < main_~length~0); 435#L372-4 main_~j~0 := 0; 424#L379-3 assume !!(main_~j~0 < main_~length~0); 425#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 437#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 418#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 419#L379-3 assume !!(main_~j~0 < main_~length~0); 420#L380-3 [2019-11-19 22:30:45,043 INFO L796 eck$LassoCheckResult]: Loop: 420#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 421#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 420#L380-3 [2019-11-19 22:30:45,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2019-11-19 22:30:45,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:45,043 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394089243] [2019-11-19 22:30:45,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:45,182 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394089243] [2019-11-19 22:30:45,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707821170] [2019-11-19 22:30:45,183 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 22:30:45,230 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-19 22:30:45,231 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 22:30:45,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:30:45,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:45,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:45,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 22:30:45,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 13 [2019-11-19 22:30:45,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125374249] [2019-11-19 22:30:45,312 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 22:30:45,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:45,312 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2019-11-19 22:30:45,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:45,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664713937] [2019-11-19 22:30:45,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,321 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:45,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:30:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-19 22:30:45,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-19 22:30:45,370 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand 14 states. [2019-11-19 22:30:45,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:30:45,627 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-11-19 22:30:45,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-19 22:30:45,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 56 transitions. [2019-11-19 22:30:45,629 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:45,630 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 28 states and 35 transitions. [2019-11-19 22:30:45,630 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-19 22:30:45,630 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-19 22:30:45,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2019-11-19 22:30:45,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 22:30:45,630 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-11-19 22:30:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2019-11-19 22:30:45,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2019-11-19 22:30:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-19 22:30:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2019-11-19 22:30:45,633 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-19 22:30:45,647 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-19 22:30:45,651 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Exception during sending of exit command (exit): Broken pipe [2019-11-19 22:30:45,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2019-11-19 22:30:45,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-19 22:30:45,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:30:45,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:30:45,654 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:30:45,654 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 22:30:45,654 INFO L794 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 572#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~nondet206, main_#t~malloc207.base, main_#t~malloc207.offset, main_#t~nondet209, main_#t~post208, main_#t~mem212, main_#t~post213, main_#t~mem211, main_#t~post210, main_~i~0, main_~j~0, main_~val~0, main_~limit~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~limit~0 := main_#t~nondet205;havoc main_#t~nondet205;main_~length~0 := main_#t~nondet206;havoc main_#t~nondet206; 573#L369 assume !(main_~length~0 < 1); 580#L369-2 call main_#t~malloc207.base, main_#t~malloc207.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc207.base, main_#t~malloc207.offset; 575#L371 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 576#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 579#L374 assume !(main_~val~0 > main_~limit~0); 584#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 577#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 578#L372-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet209;havoc main_#t~nondet209; 569#L374 assume !(main_~val~0 > main_~limit~0); 570#L374-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 571#L372-2 main_#t~post208 := main_~i~0;main_~i~0 := 1 + main_#t~post208;havoc main_#t~post208; 583#L372-3 assume !(main_~i~0 < main_~length~0); 582#L372-4 main_~j~0 := 0; 567#L379-3 assume !!(main_~j~0 < main_~length~0); 568#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 585#L380-1 assume !(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211; 565#L379-2 main_#t~post210 := main_~j~0;main_~j~0 := 1 + main_#t~post210;havoc main_#t~post210; 566#L379-3 assume !!(main_~j~0 < main_~length~0); 561#L380-3 [2019-11-19 22:30:45,654 INFO L796 eck$LassoCheckResult]: Loop: 561#L380-3 call main_#t~mem211 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 562#L380-1 assume !!(main_#t~mem211 < main_~limit~0);havoc main_#t~mem211;call main_#t~mem212 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post213 := main_#t~mem212;call write~int(1 + main_#t~post213, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem212;havoc main_#t~post213; 561#L380-3 [2019-11-19 22:30:45,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:45,655 INFO L82 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2019-11-19 22:30:45,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:45,655 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645467149] [2019-11-19 22:30:45,655 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:45,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:45,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2019-11-19 22:30:45,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:45,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549093994] [2019-11-19 22:30:45,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:45,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:45,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2019-11-19 22:30:45,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:30:45,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063442369] [2019-11-19 22:30:45,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:30:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:30:45,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:30:46,097 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 87 [2019-11-19 22:30:46,171 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 22:30:46,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 22:30:46,172 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 22:30:46,172 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 22:30:46,172 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 22:30:46,172 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:46,172 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 22:30:46,172 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 22:30:46,172 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration6_Lasso [2019-11-19 22:30:46,172 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 22:30:46,172 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 22:30:46,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 22:30:46,520 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 22:30:46,520 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:46,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:46,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:46,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:46,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:46,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:46,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:46,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:46,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:46,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:46,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:46,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:46,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:46,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:46,542 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:46,542 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 22:30:46,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:46,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 22:30:46,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 22:30:46,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 22:30:46,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 22:30:46,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 22:30:46,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 22:30:46,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:46,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 22:30:46,590 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-19 22:30:46,590 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_753823da-6738-427a-8066-4d201605ebb9/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 22:30:46,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 22:30:46,596 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 22:30:46,597 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 22:30:46,597 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3) = 1*ULTIMATE.start_main_~limit~0 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ (* ULTIMATE.start_main_~j~0 4) ULTIMATE.start_main_~arr~0.offset))_3 Supporting invariants [] [2019-11-19 22:30:46,606 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-11-19 22:30:46,607 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-19 22:30:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:46,650 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 22:30:46,650 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-19 22:30:46,664 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-11-19 22:30:46,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:30:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-19 22:30:46,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-19 22:30:46,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:46,665 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:30:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:46,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:46,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 22:30:46,720 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-19 22:30:46,733 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 35 transitions. Complement of second has 7 states. [2019-11-19 22:30:46,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:30:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2019-11-19 22:30:46,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-19 22:30:46,734 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:46,734 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 22:30:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:30:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:30:46,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:30:46,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:30:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:30:46,794 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-19 22:30:46,794 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-19 22:30:46,825 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 6 states. [2019-11-19 22:30:46,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 22:30:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 22:30:46,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-11-19 22:30:46,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2019-11-19 22:30:46,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:46,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2019-11-19 22:30:46,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:46,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2019-11-19 22:30:46,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 22:30:46,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2019-11-19 22:30:46,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:30:46,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2019-11-19 22:30:46,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 22:30:46,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 22:30:46,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 22:30:46,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:30:46,828 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:30:46,828 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:30:46,828 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:30:46,829 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 22:30:46,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:30:46,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 22:30:46,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 22:30:46,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:30:46 BoogieIcfgContainer [2019-11-19 22:30:46,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:30:46,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:30:46,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:30:46,834 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:30:46,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:40" (3/4) ... [2019-11-19 22:30:46,838 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:30:46,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:30:46,840 INFO L168 Benchmark]: Toolchain (without parser) took 6851.07 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 292.6 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). Peak memory consumption was 146.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:46,840 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:46,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:46,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:46,841 INFO L168 Benchmark]: Boogie Preprocessor took 23.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:46,842 INFO L168 Benchmark]: RCFGBuilder took 330.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:46,842 INFO L168 Benchmark]: BuchiAutomizer took 5961.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 133.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:30:46,843 INFO L168 Benchmark]: Witness Printer took 4.81 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:30:46,845 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 485.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5961.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 133.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.81 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * arr + -4 * i + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] and consists of 6 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][arr] and consists of 5 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 104 SDtfs, 222 SDslu, 86 SDs, 0 SdLazy, 190 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital130 mio100 ax100 hnf98 lsp94 ukn79 mio100 lsp55 div100 bol100 ite100 ukn100 eq164 hnf89 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...