./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 86041c6ad59cce2f98747ca89872b3c90a73ab21 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:40:47,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:40:47,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:40:47,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:40:47,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:40:47,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:40:47,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:40:47,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:40:47,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:40:47,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:40:47,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:40:47,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:40:47,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:40:47,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:40:47,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:40:47,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:40:47,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:40:47,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:40:47,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:40:47,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:40:47,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:40:47,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:40:47,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:40:47,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:40:47,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:40:47,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:40:47,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:40:47,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:40:47,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:40:47,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:40:47,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:40:47,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:40:47,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:40:47,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:40:47,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:40:47,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:40:47,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:40:47,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:40:47,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:40:47,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:40:47,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:40:47,678 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:40:47,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:40:47,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:40:47,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:40:47,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:40:47,723 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:40:47,723 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:40:47,723 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:40:47,724 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:40:47,724 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:40:47,724 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:40:47,724 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:40:47,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:40:47,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:40:47,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:40:47,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:40:47,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:40:47,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:40:47,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:40:47,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:40:47,726 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:40:47,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:40:47,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:40:47,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:40:47,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:40:47,728 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:40:47,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:40:47,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:40:47,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:40:47,729 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:40:47,730 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:40:47,730 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 86041c6ad59cce2f98747ca89872b3c90a73ab21 [2020-10-20 06:40:47,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:40:47,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:40:47,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:40:47,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:40:47,966 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:40:47,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2020-10-20 06:40:48,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4923a5683/ed65c6af98134a51af0ab2d9a20f9700/FLAGda65abf2c [2020-10-20 06:40:48,586 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:40:48,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2020-10-20 06:40:48,609 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4923a5683/ed65c6af98134a51af0ab2d9a20f9700/FLAGda65abf2c [2020-10-20 06:40:48,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4923a5683/ed65c6af98134a51af0ab2d9a20f9700 [2020-10-20 06:40:48,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:40:48,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:40:48,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:40:48,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:40:48,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:40:48,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:40:48" (1/1) ... [2020-10-20 06:40:48,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de74875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:48, skipping insertion in model container [2020-10-20 06:40:48,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:40:48" (1/1) ... [2020-10-20 06:40:48,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:40:48,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:40:49,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:40:49,396 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:40:49,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:40:49,487 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:40:49,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49 WrapperNode [2020-10-20 06:40:49,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:40:49,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:40:49,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:40:49,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:40:49,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:40:49,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:40:49,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:40:49,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:40:49,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... [2020-10-20 06:40:49,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:40:49,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:40:49,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:40:49,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:40:49,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:40:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:40:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:40:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:40:50,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:40:50,006 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-20 06:40:50,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:40:50 BoogieIcfgContainer [2020-10-20 06:40:50,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:40:50,008 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:40:50,008 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:40:50,015 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:40:50,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:40:50,016 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:40:48" (1/3) ... [2020-10-20 06:40:50,017 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@519fd19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:40:50, skipping insertion in model container [2020-10-20 06:40:50,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:40:50,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:40:49" (2/3) ... [2020-10-20 06:40:50,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@519fd19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:40:50, skipping insertion in model container [2020-10-20 06:40:50,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:40:50,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:40:50" (3/3) ... [2020-10-20 06:40:50,020 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcpy-alloca-1.i [2020-10-20 06:40:50,064 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:40:50,064 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:40:50,065 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:40:50,065 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:40:50,065 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:40:50,065 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:40:50,065 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:40:50,067 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:40:50,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 06:40:50,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:40:50,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:40:50,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:40:50,110 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:40:50,110 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:40:50,110 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:40:50,111 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-10-20 06:40:50,112 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:40:50,112 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:40:50,112 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:40:50,113 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 06:40:50,113 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:40:50,120 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 6#L557true assume !(main_~length1~0 < 1); 8#L557-2true assume !(main_~length2~0 < 1); 15#L560-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstrcpy_#in~to.base, cstrcpy_#in~to.offset, cstrcpy_#in~from.base, cstrcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstrcpy_#res.base, cstrcpy_#res.offset;havoc cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset, cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset, cstrcpy_#t~mem4, cstrcpy_~to.base, cstrcpy_~to.offset, cstrcpy_~from.base, cstrcpy_~from.offset, cstrcpy_~save~0.base, cstrcpy_~save~0.offset;cstrcpy_~to.base, cstrcpy_~to.offset := cstrcpy_#in~to.base, cstrcpy_#in~to.offset;cstrcpy_~from.base, cstrcpy_~from.offset := cstrcpy_#in~from.base, cstrcpy_#in~from.offset;cstrcpy_~save~0.base, cstrcpy_~save~0.offset := cstrcpy_~to.base, cstrcpy_~to.offset; 4#L551-4true [2020-10-20 06:40:50,120 INFO L796 eck$LassoCheckResult]: Loop: 4#L551-4true call cstrcpy_#t~mem4 := read~int(cstrcpy_~from.base, cstrcpy_~from.offset, 1);call write~int(cstrcpy_#t~mem4, cstrcpy_~to.base, cstrcpy_~to.offset, 1); 13#L551-1true assume !!(0 != cstrcpy_#t~mem4);havoc cstrcpy_#t~mem4; 3#L551-3true cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset := cstrcpy_~from.base, 1 + cstrcpy_~from.offset;cstrcpy_~from.base, cstrcpy_~from.offset := cstrcpy_~from.base, 1 + cstrcpy_~from.offset;havoc cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset;cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset := cstrcpy_~to.base, 1 + cstrcpy_~to.offset;cstrcpy_~to.base, cstrcpy_~to.offset := cstrcpy_~to.base, 1 + cstrcpy_~to.offset;havoc cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset; 4#L551-4true [2020-10-20 06:40:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:50,126 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2020-10-20 06:40:50,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:40:50,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780386052] [2020-10-20 06:40:50,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:40:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,313 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:40:50,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:50,315 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2020-10-20 06:40:50,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:40:50,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141323062] [2020-10-20 06:40:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:40:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:40:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:50,357 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2020-10-20 06:40:50,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:40:50,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055922091] [2020-10-20 06:40:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:40:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:40:50,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:40:50,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:40:50,919 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2020-10-20 06:40:51,058 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-20 06:40:51,073 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:40:51,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:40:51,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:40:51,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:40:51,075 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:40:51,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:51,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:40:51,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:40:51,076 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-1.i_Iteration1_Lasso [2020-10-20 06:40:51,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:40:51,076 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:40:51,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,530 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2020-10-20 06:40:51,677 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-10-20 06:40:51,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:40:51,852 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-20 06:40:52,313 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:40:52,319 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:40:52,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,338 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 [2020-10-20 06:40:52,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,438 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,534 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 [2020-10-20 06:40:52,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,601 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:40:52,753 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:40:52,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,835 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 [2020-10-20 06:40:52,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:52,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:52,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:52,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:52,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:52,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:52,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:52,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:52,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:52,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:52,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:52,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:52,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 06:40:53,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:53,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:53,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:40:53,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:53,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:53,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:53,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:40:53,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:40:53,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:53,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 06:40:53,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:40:53,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:40:53,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:40:53,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:40:53,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:40:53,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:40:53,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:40:53,299 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-10-20 06:40:53,299 INFO L444 ModelExtractionUtils]: 11 out of 49 variables were initially zero. Simplification set additionally 35 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:40:53,344 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:40:53,351 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 06:40:53,351 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:40:53,352 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcpy_~from.base)_1, ULTIMATE.start_cstrcpy_~from.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcpy_~from.base)_1 - 1*ULTIMATE.start_cstrcpy_~from.offset Supporting invariants [] [2020-10-20 06:40:53,444 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-10-20 06:40:53,453 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 06:40:53,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:40:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:53,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:40:53,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:40:53,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:40:53,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:40:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:40:53,574 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 [2020-10-20 06:40:53,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-10-20 06:40:53,627 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 29 states and 33 transitions. Complement of second has 5 states. [2020-10-20 06:40:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:40:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:40:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2020-10-20 06:40:53,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-10-20 06:40:53,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:53,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 3 letters. [2020-10-20 06:40:53,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:53,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2020-10-20 06:40:53,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:40:53,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2020-10-20 06:40:53,643 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:40:53,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2020-10-20 06:40:53,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:40:53,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:40:53,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:40:53,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:40:53,648 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:53,648 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:53,648 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:40:53,648 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:40:53,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:40:53,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:40:53,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:40:53,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:40:53 BoogieIcfgContainer [2020-10-20 06:40:53,655 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:40:53,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:40:53,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:40:53,657 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:40:53,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:40:50" (3/4) ... [2020-10-20 06:40:53,662 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:40:53,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:40:53,664 INFO L168 Benchmark]: Toolchain (without parser) took 4772.46 ms. Allocated memory was 37.2 MB in the beginning and 69.2 MB in the end (delta: 32.0 MB). Free memory was 18.6 MB in the beginning and 26.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 24.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,666 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 35.1 MB. Free memory was 12.3 MB in the beginning and 12.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.30 ms. Allocated memory was 37.2 MB in the beginning and 46.1 MB in the end (delta: 8.9 MB). Free memory was 17.6 MB in the beginning and 18.0 MB in the end (delta: -320.1 kB). Peak memory consumption was 15.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.89 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 18.0 MB in the beginning and 28.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,675 INFO L168 Benchmark]: Boogie Preprocessor took 36.64 ms. Allocated memory is still 47.2 MB. Free memory was 28.9 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,676 INFO L168 Benchmark]: RCFGBuilder took 424.02 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: -77.1 kB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,676 INFO L168 Benchmark]: BuchiAutomizer took 3647.44 ms. Allocated memory was 47.7 MB in the beginning and 69.2 MB in the end (delta: 21.5 MB). Free memory was 27.2 MB in the beginning and 26.7 MB in the end (delta: 513.5 kB). Peak memory consumption was 22.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,683 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 69.2 MB. Free memory was 26.7 MB in the beginning and 26.0 MB in the end (delta: 670.9 kB). Peak memory consumption was 670.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:40:53,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 35.1 MB. Free memory was 12.3 MB in the beginning and 12.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 589.30 ms. Allocated memory was 37.2 MB in the beginning and 46.1 MB in the end (delta: 8.9 MB). Free memory was 17.6 MB in the beginning and 18.0 MB in the end (delta: -320.1 kB). Peak memory consumption was 15.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 56.89 ms. Allocated memory was 46.1 MB in the beginning and 47.2 MB in the end (delta: 1.0 MB). Free memory was 18.0 MB in the beginning and 28.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 36.64 ms. Allocated memory is still 47.2 MB. Free memory was 28.9 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 424.02 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: -77.1 kB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 3647.44 ms. Allocated memory was 47.7 MB in the beginning and 69.2 MB in the end (delta: 21.5 MB). Free memory was 27.2 MB in the beginning and 26.7 MB in the end (delta: 513.5 kB). Peak memory consumption was 22.0 MB. Max. memory is 14.3 GB. * Witness Printer took 5.05 ms. Allocated memory is still 69.2 MB. Free memory was 26.7 MB in the beginning and 26.0 MB in the end (delta: 670.9 kB). Peak memory consumption was 670.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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-#length-unknown[from] + -1 * from and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. 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: 16 SDtfs, 15 SDslu, 6 SDs, 0 SdLazy, 3 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital197 mio100 ax109 hnf99 lsp88 ukn92 mio100 lsp49 div100 bol100 ite100 ukn100 eq196 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms 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...