./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/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 f932c1059c6a140c081a3f9115dadbff28d03ec1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:54:59,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:54:59,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:54:59,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:54:59,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:54:59,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:54:59,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:54:59,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:54:59,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:54:59,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:54:59,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:54:59,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:54:59,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:54:59,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:54:59,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:54:59,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:54:59,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:54:59,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:54:59,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:54:59,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:54:59,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:54:59,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:54:59,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:54:59,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:54:59,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:54:59,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:54:59,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:54:59,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:54:59,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:54:59,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:54:59,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:54:59,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:54:59,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:54:59,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:54:59,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:54:59,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:54:59,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:54:59,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:54:59,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:54:59,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:54:59,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:54:59,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 23:54:59,621 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:54:59,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:54:59,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:54:59,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:54:59,623 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:54:59,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 23:54:59,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 23:54:59,623 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 23:54:59,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 23:54:59,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 23:54:59,624 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 23:54:59,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:54:59,625 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 23:54:59,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:54:59,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:54:59,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 23:54:59,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 23:54:59,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 23:54:59,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:54:59,626 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 23:54:59,626 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:54:59,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 23:54:59,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:54:59,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:54:59,627 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 23:54:59,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:54:59,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:54:59,628 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 23:54:59,629 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 23:54:59,629 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_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/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 -> f932c1059c6a140c081a3f9115dadbff28d03ec1 [2019-11-15 23:54:59,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:54:59,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:54:59,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:54:59,668 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:54:59,668 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:54:59,669 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-15 23:54:59,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/data/f5045da86/e2c719279845475093d27336075f337b/FLAG74d4b7c96 [2019-11-15 23:55:00,188 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:55:00,189 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/sv-benchmarks/c/termination-memory-alloca/BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-15 23:55:00,202 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/data/f5045da86/e2c719279845475093d27336075f337b/FLAG74d4b7c96 [2019-11-15 23:55:00,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/bin/uautomizer/data/f5045da86/e2c719279845475093d27336075f337b [2019-11-15 23:55:00,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:55:00,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:55:00,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:55:00,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:55:00,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:55:00,229 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2f958a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00, skipping insertion in model container [2019-11-15 23:55:00,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,244 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:55:00,296 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:55:00,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:55:00,659 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:55:00,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:55:00,744 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:55:00,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00 WrapperNode [2019-11-15 23:55:00,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:55:00,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:55:00,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:55:00,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:55:00,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:55:00,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:55:00,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:55:00,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:55:00,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... [2019-11-15 23:55:00,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:55:00,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:55:00,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:55:00,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:55:00,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_becd197c-f3b2-4cae-accc-a9cc1dbfb0b4/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 [2019-11-15 23:55:00,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:55:00,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:55:00,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:55:00,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:55:00,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:55:00,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:55:01,057 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:55:01,058 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 23:55:01,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:01 BoogieIcfgContainer [2019-11-15 23:55:01,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:55:01,059 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 23:55:01,059 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 23:55:01,062 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 23:55:01,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:01,063 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 11:55:00" (1/3) ... [2019-11-15 23:55:01,064 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bf82254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:55:01, skipping insertion in model container [2019-11-15 23:55:01,064 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:01,064 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:55:00" (2/3) ... [2019-11-15 23:55:01,065 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bf82254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 11:55:01, skipping insertion in model container [2019-11-15 23:55:01,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 23:55:01,065 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:01" (3/3) ... [2019-11-15 23:55:01,066 INFO L371 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i [2019-11-15 23:55:01,147 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 23:55:01,148 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 23:55:01,148 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 23:55:01,148 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:55:01,150 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:55:01,150 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 23:55:01,151 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:55:01,151 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 23:55:01,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 23:55:01,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:55:01,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:01,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:01,191 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 23:55:01,191 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:55:01,191 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 23:55:01,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-15 23:55:01,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 23:55:01,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 23:55:01,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 23:55:01,193 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 23:55:01,193 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 23:55:01,200 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(1, main_~y~0.base, main_~y~0.offset, 4); 5#L550-3true [2019-11-15 23:55:01,201 INFO L793 eck$LassoCheckResult]: Loop: 5#L550-3true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 9#L550-1true assume !!(main_#t~mem4 > 0);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4);call main_#t~mem6 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem5 - main_#t~mem6, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem5;havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(1 + main_#t~mem7, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem7; 5#L550-3true [2019-11-15 23:55:01,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:01,208 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-15 23:55:01,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:01,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202896841] [2019-11-15 23:55:01,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,328 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:01,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:01,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-11-15 23:55:01,329 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:01,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70138476] [2019-11-15 23:55:01,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,373 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:01,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:01,374 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-11-15 23:55:01,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:55:01,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234735480] [2019-11-15 23:55:01,375 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,375 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:55:01,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:55:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:55:01,417 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:55:01,722 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-11-15 23:55:01,811 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 23:55:01,812 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 23:55:01,812 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 23:55:01,812 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 23:55:01,813 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 23:55:01,813 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 23:55:01,813 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 23:55:01,813 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 23:55:01,814 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-2013CAV-Introduction-alloca.i_Iteration1_Lasso [2019-11-15 23:55:01,814 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 23:55:01,814 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 23:55:01,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:01,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,060 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-15 23:55:02,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 23:55:02,762 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 25 [2019-11-15 23:55:02,818 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 23:55:02,824 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 23:55:02,826 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 [2019-11-15 23:55:02,829 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,829 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:55:02,830 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,830 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,830 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,832 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:55:02,832 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:55:02,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,835 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 [2019-11-15 23:55:02,836 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,836 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:55:02,836 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,837 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,837 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,837 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:55:02,838 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:55:02,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,840 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 [2019-11-15 23:55:02,841 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,841 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:55:02,841 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,842 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,842 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,842 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:55:02,842 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:55:02,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,844 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 [2019-11-15 23:55:02,845 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,845 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,845 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,845 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,862 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,862 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:02,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,868 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 [2019-11-15 23:55:02,868 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,868 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 23:55:02,869 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,869 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,869 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,870 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 23:55:02,870 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 23:55:02,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,871 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 [2019-11-15 23:55:02,872 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,872 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,872 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,873 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,875 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,875 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:02,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,882 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 [2019-11-15 23:55:02,883 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,883 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,883 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,884 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,887 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,889 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:02,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 23:55:02,923 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,923 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,924 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,924 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,927 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,931 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:02,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,954 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 [2019-11-15 23:55:02,956 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,956 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,956 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,957 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,964 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,965 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:02,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:02,972 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 [2019-11-15 23:55:02,974 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:02,975 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:02,979 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:02,979 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:02,982 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:02,982 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:03,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 23:55:03,011 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 [2019-11-15 23:55:03,012 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 23:55:03,012 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 23:55:03,012 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 23:55:03,012 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 23:55:03,016 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 23:55:03,016 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 23:55:03,069 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 23:55:03,096 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 23:55:03,096 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 23:55:03,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 23:55:03,100 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-15 23:55:03,100 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 23:55:03,101 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_1 - 1 >= 0] [2019-11-15 23:55:03,140 INFO L297 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2019-11-15 23:55:03,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-15 23:55:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:55:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:55:03,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:55:03,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:55:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:55:03,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:55:03,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:55:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:55:03,264 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 [2019-11-15 23:55:03,266 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-15 23:55:03,332 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 18 states and 20 transitions. Complement of second has 7 states. [2019-11-15 23:55:03,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-15 23:55:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 23:55:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-15 23:55:03,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 23:55:03,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:55:03,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 23:55:03,339 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:55:03,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-15 23:55:03,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 23:55:03,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 20 transitions. [2019-11-15 23:55:03,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:55:03,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-15 23:55:03,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 23:55:03,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 23:55:03,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 23:55:03,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 23:55:03,348 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:55:03,348 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:55:03,348 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:55:03,348 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 23:55:03,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:55:03,349 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 23:55:03,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 23:55:03,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 11:55:03 BoogieIcfgContainer [2019-11-15 23:55:03,355 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 23:55:03,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:55:03,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:55:03,355 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:55:03,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:55:01" (3/4) ... [2019-11-15 23:55:03,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:55:03,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:55:03,362 INFO L168 Benchmark]: Toolchain (without parser) took 3142.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 886.8 MB in the end (delta: 52.5 MB). Peak memory consumption was 195.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:03,363 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:55:03,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:03,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.89 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. [2019-11-15 23:55:03,365 INFO L168 Benchmark]: Boogie Preprocessor took 21.76 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. [2019-11-15 23:55:03,366 INFO L168 Benchmark]: RCFGBuilder took 253.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:03,367 INFO L168 Benchmark]: BuchiAutomizer took 2295.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.8 MB in the end (delta: 216.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:55:03,368 INFO L168 Benchmark]: Witness Printer took 4.24 ms. Allocated memory is still 1.2 GB. Free memory is still 886.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:55:03,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.76 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 253.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2295.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 886.8 MB in the end (delta: 216.7 MB). Peak memory consumption was 216.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.24 ms. Allocated memory is still 1.2 GB. Free memory is still 886.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 6 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital212 mio100 ax108 hnf100 lsp88 ukn59 mio100 lsp41 div100 bol100 ite100 ukn100 eq172 hnf89 smp96 dnf164 smp95 tf100 neg93 sie125 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms 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...