./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/twisted-alloca.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 1a7013a4cfa859e3e95189f90d363983a25fcd0e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:48:13,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:48:13,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:48:13,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:48:13,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:48:13,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:48:13,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:48:13,612 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:48:13,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:48:13,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:48:13,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:48:13,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:48:13,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:48:13,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:48:13,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:48:13,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:48:13,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:48:13,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:48:13,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:48:13,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:48:13,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:48:13,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:48:13,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:48:13,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:48:13,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:48:13,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:48:13,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:48:13,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:48:13,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:48:13,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:48:13,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:48:13,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:48:13,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:48:13,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:48:13,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:48:13,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:48:13,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:48:13,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:48:13,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:48:13,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:48:13,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:48:13,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:48:13,721 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:48:13,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:48:13,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:48:13,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:48:13,724 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:48:13,725 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:48:13,725 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:48:13,725 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:48:13,725 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:48:13,725 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:48:13,727 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:48:13,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:48:13,727 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:48:13,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:48:13,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:48:13,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:48:13,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:48:13,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:48:13,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:48:13,729 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:48:13,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:48:13,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:48:13,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:48:13,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:48:13,731 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:48:13,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:48:13,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:48:13,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:48:13,732 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:48:13,734 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:48:13,734 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 -> 1a7013a4cfa859e3e95189f90d363983a25fcd0e [2020-10-19 18:48:14,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:48:14,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:48:14,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:48:14,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:48:14,063 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:48:14,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2020-10-19 18:48:14,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e170eed8a/6eaa6d8ad2e9401caf0497ac7eb359bb/FLAGe2ecacde0 [2020-10-19 18:48:14,689 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:48:14,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2020-10-19 18:48:14,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e170eed8a/6eaa6d8ad2e9401caf0497ac7eb359bb/FLAGe2ecacde0 [2020-10-19 18:48:15,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e170eed8a/6eaa6d8ad2e9401caf0497ac7eb359bb [2020-10-19 18:48:15,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:48:15,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:48:15,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:48:15,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:48:15,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:48:15,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48cb863f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15, skipping insertion in model container [2020-10-19 18:48:15,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:48:15,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:48:15,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:48:15,551 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:48:15,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:48:15,660 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:48:15,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15 WrapperNode [2020-10-19 18:48:15,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:48:15,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:48:15,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:48:15,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:48:15,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:48:15,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:48:15,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:48:15,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:48:15,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (1/1) ... [2020-10-19 18:48:15,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:48:15,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:48:15,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:48:15,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:48:15,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (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 [2020-10-19 18:48:15,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:48:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:48:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:48:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:48:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:48:15,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:48:16,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:48:16,174 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-19 18:48:16,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:48:16 BoogieIcfgContainer [2020-10-19 18:48:16,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:48:16,177 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:48:16,177 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:48:16,181 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:48:16,182 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:48:16,182 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:48:15" (1/3) ... [2020-10-19 18:48:16,183 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fdbf0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:48:16, skipping insertion in model container [2020-10-19 18:48:16,183 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:48:16,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:48:15" (2/3) ... [2020-10-19 18:48:16,184 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5fdbf0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:48:16, skipping insertion in model container [2020-10-19 18:48:16,184 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:48:16,184 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:48:16" (3/3) ... [2020-10-19 18:48:16,186 INFO L373 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2020-10-19 18:48:16,236 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:48:16,236 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:48:16,236 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:48:16,236 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:48:16,237 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:48:16,237 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:48:16,237 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:48:16,237 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:48:16,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:48:16,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:48:16,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:16,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:16,280 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:48:16,281 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:48:16,281 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:48:16,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 18:48:16,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:48:16,283 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:16,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:16,283 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:48:16,283 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:48:16,290 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2020-10-19 18:48:16,290 INFO L796 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 8#L564true goto; 4#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 11#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 6#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2020-10-19 18:48:16,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:16,297 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 18:48:16,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:16,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058066681] [2020-10-19 18:48:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:16,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:16,567 INFO L82 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2020-10-19 18:48:16,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:16,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577264179] [2020-10-19 18:48:16,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:16,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577264179] [2020-10-19 18:48:16,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:48:16,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:48:16,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50947389] [2020-10-19 18:48:16,612 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:48:16,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:16,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:48:16,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:48:16,633 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-10-19 18:48:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:16,641 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2020-10-19 18:48:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:48:16,643 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-19 18:48:16,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:48:16,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-10-19 18:48:16,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:48:16,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:48:16,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-10-19 18:48:16,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:48:16,652 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:16,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-10-19 18:48:16,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-19 18:48:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-19 18:48:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-10-19 18:48:16,685 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:16,685 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-10-19 18:48:16,685 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:48:16,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-10-19 18:48:16,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:48:16,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:16,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:16,687 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:48:16,687 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:16,687 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 38#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 39#L569 [2020-10-19 18:48:16,687 INFO L796 eck$LassoCheckResult]: Loop: 39#L569 goto; 42#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 46#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 40#L564 goto; 41#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 44#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 45#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 39#L569 [2020-10-19 18:48:16,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:16,688 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-19 18:48:16,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:16,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062447280] [2020-10-19 18:48:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,782 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:16,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:16,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2020-10-19 18:48:16,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:16,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347605872] [2020-10-19 18:48:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:16,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:16,841 INFO L82 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2020-10-19 18:48:16,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:16,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274011848] [2020-10-19 18:48:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:16,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:16,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:17,092 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-19 18:48:17,266 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-10-19 18:48:17,923 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 98 [2020-10-19 18:48:18,208 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-19 18:48:18,226 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:18,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:18,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:18,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:18,228 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:18,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:18,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:18,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:18,229 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2020-10-19 18:48:18,229 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:18,229 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:18,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:18,945 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2020-10-19 18:48:19,152 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-10-19 18:48:19,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:19,477 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-10-19 18:48:19,990 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:19,997 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) [2020-10-19 18:48:20,012 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 [2020-10-19 18:48:20,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,023 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 [2020-10-19 18:48:20,026 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) [2020-10-19 18:48:20,058 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,063 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 [2020-10-19 18:48:20,088 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 [2020-10-19 18:48:20,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,101 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 [2020-10-19 18:48:20,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:20,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,133 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 [2020-10-19 18:48:20,160 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 [2020-10-19 18:48:20,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,173 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 [2020-10-19 18:48:20,207 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 [2020-10-19 18:48:20,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,216 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) [2020-10-19 18:48:20,261 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,264 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,266 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) [2020-10-19 18:48:20,311 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 [2020-10-19 18:48:20,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,316 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,321 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) [2020-10-19 18:48:20,364 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,370 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,397 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 [2020-10-19 18:48:20,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,402 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,427 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 [2020-10-19 18:48:20,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,438 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:20,483 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 [2020-10-19 18:48:20,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,494 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 [2020-10-19 18:48:20,522 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 [2020-10-19 18:48:20,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,525 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,527 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 [2020-10-19 18:48:20,549 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 [2020-10-19 18:48:20,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:20,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:20,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:20,554 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 [2020-10-19 18:48:20,577 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 [2020-10-19 18:48:20,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,585 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 [2020-10-19 18:48:20,629 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 [2020-10-19 18:48:20,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,651 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 [2020-10-19 18:48:20,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:20,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,725 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) [2020-10-19 18:48:20,775 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 [2020-10-19 18:48:20,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,784 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,809 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 [2020-10-19 18:48:20,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,821 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,844 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 [2020-10-19 18:48:20,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:20,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:20,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:20,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:20,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:20,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:20,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:20,952 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:48:20,952 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:20,967 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:48:21,013 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:21,013 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:21,014 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2020-10-19 18:48:21,236 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2020-10-19 18:48:21,249 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:48:21,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:21,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:48:21,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:21,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:48:21,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:21,476 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2020-10-19 18:48:21,481 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:21,492 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:21,493 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:21,494 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-10-19 18:48:21,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:21,517 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 18:48:21,518 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-10-19 18:48:21,596 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 27 transitions. Complement of second has 6 states. [2020-10-19 18:48:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:48:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 18:48:21,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-10-19 18:48:21,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2020-10-19 18:48:21,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:21,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2020-10-19 18:48:21,602 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:21,602 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2020-10-19 18:48:21,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:21,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2020-10-19 18:48:21,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:21,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2020-10-19 18:48:21,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 18:48:21,608 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-10-19 18:48:21,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-10-19 18:48:21,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:21,608 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-10-19 18:48:21,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-10-19 18:48:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2020-10-19 18:48:21,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:48:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2020-10-19 18:48:21,611 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 18:48:21,611 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2020-10-19 18:48:21,611 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:48:21,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2020-10-19 18:48:21,612 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:21,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:21,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:21,612 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 18:48:21,612 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:21,613 INFO L794 eck$LassoCheckResult]: Stem: 293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 285#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 286#L569 goto; 288#L560 [2020-10-19 18:48:21,613 INFO L796 eck$LassoCheckResult]: Loop: 288#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 294#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 295#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 288#L560 [2020-10-19 18:48:21,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:21,614 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-19 18:48:21,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:21,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459975878] [2020-10-19 18:48:21,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:21,661 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2020-10-19 18:48:21,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:21,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585610703] [2020-10-19 18:48:21,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,692 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:21,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:21,692 INFO L82 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2020-10-19 18:48:21,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:21,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607399842] [2020-10-19 18:48:21,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:21,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:21,785 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:22,508 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 95 [2020-10-19 18:48:22,757 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-19 18:48:22,764 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:22,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:22,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:22,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:22,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:22,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:22,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:22,766 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:22,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2020-10-19 18:48:22,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:22,766 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:22,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:22,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,274 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2020-10-19 18:48:23,383 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-10-19 18:48:23,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:23,976 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:23,977 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:23,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:23,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:23,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:23,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:23,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:23,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:23,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:23,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:23,991 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,014 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 [2020-10-19 18:48:24,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,018 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 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,042 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 [2020-10-19 18:48:24,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,046 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,074 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 [2020-10-19 18:48:24,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,082 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,104 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 [2020-10-19 18:48:24,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,109 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,132 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 [2020-10-19 18:48:24,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,140 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,165 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 [2020-10-19 18:48:24,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,170 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,193 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 [2020-10-19 18:48:24,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,200 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,222 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 [2020-10-19 18:48:24,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,226 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:24,250 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,254 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,285 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 [2020-10-19 18:48:24,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,289 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:24,314 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,323 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,346 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 [2020-10-19 18:48:24,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,352 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,377 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 [2020-10-19 18:48:24,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:24,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:24,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:24,380 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,403 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 [2020-10-19 18:48:24,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,413 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 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,437 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 [2020-10-19 18:48:24,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,443 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,454 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:24,491 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 [2020-10-19 18:48:24,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,501 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,529 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 [2020-10-19 18:48:24,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,532 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,532 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,536 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,559 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 [2020-10-19 18:48:24,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,566 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,590 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 [2020-10-19 18:48:24,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,599 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:24,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,628 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,655 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 [2020-10-19 18:48:24,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,662 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 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,686 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 [2020-10-19 18:48:24,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,689 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,694 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,721 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 [2020-10-19 18:48:24,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,724 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,724 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,730 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:24,753 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,759 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,763 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,795 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 [2020-10-19 18:48:24,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:24,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:24,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:24,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:24,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:24,805 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:24,815 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:24,833 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:48:24,834 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:24,842 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:48:24,851 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:24,851 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:24,852 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 Supporting invariants [] [2020-10-19 18:48:25,009 INFO L297 tatePredicateManager]: 32 out of 32 supporting invariants were superfluous and have been removed [2020-10-19 18:48:25,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:48:25,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:48:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:25,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:48:25,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:25,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:48:25,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:25,118 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:25,119 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2020-10-19 18:48:25,126 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:48:25,128 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:48:25,139 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,170 INFO L625 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2020-10-19 18:48:25,170 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,171 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:36 [2020-10-19 18:48:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:25,193 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 18:48:25,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-19 18:48:25,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 34 states and 43 transitions. Complement of second has 7 states. [2020-10-19 18:48:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:48:25,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:25,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-10-19 18:48:25,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2020-10-19 18:48:25,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:25,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2020-10-19 18:48:25,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:25,239 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2020-10-19 18:48:25,240 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:25,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2020-10-19 18:48:25,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:25,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2020-10-19 18:48:25,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-19 18:48:25,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:48:25,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2020-10-19 18:48:25,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:25,244 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2020-10-19 18:48:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2020-10-19 18:48:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2020-10-19 18:48:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-19 18:48:25,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2020-10-19 18:48:25,247 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-10-19 18:48:25,247 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-10-19 18:48:25,247 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:48:25,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2020-10-19 18:48:25,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:25,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:25,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:25,251 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:25,251 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:25,251 INFO L794 eck$LassoCheckResult]: Stem: 512#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 505#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 506#L569 goto; 507#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 515#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 503#L564 goto; 504#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 510#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 511#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 516#L569 goto; 517#L560 [2020-10-19 18:48:25,251 INFO L796 eck$LassoCheckResult]: Loop: 517#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 513#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 514#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 517#L560 [2020-10-19 18:48:25,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:25,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2020-10-19 18:48:25,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:25,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993338130] [2020-10-19 18:48:25,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:25,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:25,300 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:25,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:25,307 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2020-10-19 18:48:25,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:25,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335225984] [2020-10-19 18:48:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:25,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:25,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:25,324 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:25,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:25,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2020-10-19 18:48:25,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:25,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826839844] [2020-10-19 18:48:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:25,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826839844] [2020-10-19 18:48:25,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190909477] [2020-10-19 18:48:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:48:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:25,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-19 18:48:25,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:25,584 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2020-10-19 18:48:25,586 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,590 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:25,592 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,593 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:9 [2020-10-19 18:48:25,657 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:25,658 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 39 [2020-10-19 18:48:25,661 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,680 INFO L625 ElimStorePlain]: treesize reduction 20, result has 50.0 percent of original size [2020-10-19 18:48:25,682 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,683 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:11 [2020-10-19 18:48:25,702 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:25,703 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2020-10-19 18:48:25,707 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:48:25,709 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 18:48:25,711 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-10-19 18:48:25,719 INFO L625 ElimStorePlain]: treesize reduction 17, result has 15.0 percent of original size [2020-10-19 18:48:25,720 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:25,720 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2020-10-19 18:48:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:25,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:48:25,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-10-19 18:48:25,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498286599] [2020-10-19 18:48:25,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:25,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:48:25,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:48:25,822 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 10 states. [2020-10-19 18:48:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:25,972 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2020-10-19 18:48:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:48:25,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 52 transitions. [2020-10-19 18:48:25,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:25,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2020-10-19 18:48:25,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-19 18:48:25,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:48:25,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-10-19 18:48:25,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:25,977 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-10-19 18:48:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-10-19 18:48:25,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2020-10-19 18:48:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-19 18:48:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-10-19 18:48:25,979 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-10-19 18:48:25,979 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-10-19 18:48:25,979 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:48:25,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-10-19 18:48:25,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:25,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:25,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:25,981 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:25,981 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:25,982 INFO L794 eck$LassoCheckResult]: Stem: 630#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 622#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 623#L569 goto; 626#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 633#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 634#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 624#L564 goto; 625#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 628#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 629#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 635#L569 goto; 636#L560 [2020-10-19 18:48:25,982 INFO L796 eck$LassoCheckResult]: Loop: 636#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 631#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 632#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 636#L560 [2020-10-19 18:48:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:25,982 INFO L82 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2020-10-19 18:48:25,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:25,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673892034] [2020-10-19 18:48:25,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:26,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:26,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673892034] [2020-10-19 18:48:26,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:48:26,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:48:26,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146480863] [2020-10-19 18:48:26,057 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:48:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2020-10-19 18:48:26,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:26,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517026917] [2020-10-19 18:48:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,071 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:26,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:26,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:48:26,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:48:26,164 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 18:48:26,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:26,189 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-10-19 18:48:26,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:48:26,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-10-19 18:48:26,191 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:26,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-10-19 18:48:26,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-19 18:48:26,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:48:26,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-10-19 18:48:26,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:26,192 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-19 18:48:26,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-10-19 18:48:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-19 18:48:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-19 18:48:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-10-19 18:48:26,195 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-19 18:48:26,195 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-19 18:48:26,196 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 18:48:26,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2020-10-19 18:48:26,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:26,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:26,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:26,198 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:26,198 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:26,198 INFO L794 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 662#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 663#L569 goto; 666#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 674#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 675#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 668#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 679#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 678#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 664#L564 goto; 665#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 670#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 671#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 676#L569 goto; 677#L560 [2020-10-19 18:48:26,198 INFO L796 eck$LassoCheckResult]: Loop: 677#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 672#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 673#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 677#L560 [2020-10-19 18:48:26,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:26,199 INFO L82 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2020-10-19 18:48:26,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:26,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210498155] [2020-10-19 18:48:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:26,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:26,260 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2020-10-19 18:48:26,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:26,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465436478] [2020-10-19 18:48:26,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,273 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:26,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2020-10-19 18:48:26,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:26,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161104742] [2020-10-19 18:48:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:26,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:26,347 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:28,100 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 199 DAG size of output: 147 [2020-10-19 18:48:28,723 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-19 18:48:28,727 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:48:28,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:48:28,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:48:28,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:48:28,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:48:28,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:28,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:48:28,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:48:28,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2020-10-19 18:48:28,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:48:28,728 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:48:28,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:28,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,513 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2020-10-19 18:48:29,652 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-19 18:48:29,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:48:29,917 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-10-19 18:48:30,422 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:48:30,423 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,428 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 [2020-10-19 18:48:30,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,432 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,461 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 [2020-10-19 18:48:30,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,466 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 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,488 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 [2020-10-19 18:48:30,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,492 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,518 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 [2020-10-19 18:48:30,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,521 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,545 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 [2020-10-19 18:48:30,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,548 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:30,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,574 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,597 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 [2020-10-19 18:48:30,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,599 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,602 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,629 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 [2020-10-19 18:48:30,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,632 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,656 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 [2020-10-19 18:48:30,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,665 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,689 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 [2020-10-19 18:48:30,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,694 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,718 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 [2020-10-19 18:48:30,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:48:30,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:48:30,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:48:30,721 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,745 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 [2020-10-19 18:48:30,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,754 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,779 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 [2020-10-19 18:48:30,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,789 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,812 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 [2020-10-19 18:48:30,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,831 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 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,855 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 [2020-10-19 18:48:30,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,861 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 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,884 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 [2020-10-19 18:48:30,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,890 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:48:30,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,922 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 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:30,946 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 [2020-10-19 18:48:30,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:30,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:30,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:30,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:30,955 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:30,955 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:30,972 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 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:31,004 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 [2020-10-19 18:48:31,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:31,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:31,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:31,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:31,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:31,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:31,015 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 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:31,042 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 [2020-10-19 18:48:31,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:31,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:31,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:31,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:48:31,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:31,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:31,052 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:48:31,074 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 [2020-10-19 18:48:31,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:48:31,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:48:31,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:48:31,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:31,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:48:31,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:48:31,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:48:31,101 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:48:31,101 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:48:31,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:48:31,105 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:48:31,105 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:48:31,105 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 Supporting invariants [] [2020-10-19 18:48:31,313 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2020-10-19 18:48:31,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:48:31,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:48:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:48:31,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:48:31,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:31,434 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:31,434 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2020-10-19 18:48:31,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:48:31,442 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:48:31,445 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:31,480 INFO L625 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2020-10-19 18:48:31,481 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:31,481 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:36 [2020-10-19 18:48:31,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:31,500 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 18:48:31,500 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 18:48:31,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 7 states. [2020-10-19 18:48:31,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:48:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-19 18:48:31,529 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2020-10-19 18:48:31,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:31,529 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:48:31,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:48:31,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:48:31,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:31,628 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:31,629 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 65 [2020-10-19 18:48:31,632 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:48:31,634 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:48:31,647 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:31,678 INFO L625 ElimStorePlain]: treesize reduction 59, result has 37.9 percent of original size [2020-10-19 18:48:31,679 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:31,679 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:36 [2020-10-19 18:48:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:31,700 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 18:48:31,700 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 18:48:31,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 51 states and 59 transitions. Complement of second has 9 states. [2020-10-19 18:48:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-19 18:48:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:48:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-10-19 18:48:31,753 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2020-10-19 18:48:31,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:31,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2020-10-19 18:48:31,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:31,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2020-10-19 18:48:31,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:48:31,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2020-10-19 18:48:31,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:31,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2020-10-19 18:48:31,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-19 18:48:31,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:48:31,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2020-10-19 18:48:31,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:48:31,759 INFO L691 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2020-10-19 18:48:31,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2020-10-19 18:48:31,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-19 18:48:31,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-19 18:48:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2020-10-19 18:48:31,764 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-10-19 18:48:31,764 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2020-10-19 18:48:31,764 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 18:48:31,764 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2020-10-19 18:48:31,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-19 18:48:31,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:48:31,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:48:31,766 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:48:31,766 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 18:48:31,767 INFO L794 eck$LassoCheckResult]: Stem: 1070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1063#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1064#L569 goto; 1065#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1087#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1080#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1081#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1095#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1094#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1093#L564 goto; 1091#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1068#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1069#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1084#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1086#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1083#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1082#L569 goto; 1078#L560 [2020-10-19 18:48:31,767 INFO L796 eck$LassoCheckResult]: Loop: 1078#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1072#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~post9;havoc f_#t~mem8;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1073#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1078#L560 [2020-10-19 18:48:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:31,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2020-10-19 18:48:31,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:31,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13440807] [2020-10-19 18:48:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:48:31,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13440807] [2020-10-19 18:48:31,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847006251] [2020-10-19 18:48:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:48:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:48:31,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:48:31,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:48:31,921 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2020-10-19 18:48:31,923 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:31,934 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:32,101 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-19 18:48:32,102 INFO L350 Elim1Store]: treesize reduction 44, result has 72.5 percent of original size [2020-10-19 18:48:32,102 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 130 [2020-10-19 18:48:32,104 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,202 INFO L625 ElimStorePlain]: treesize reduction 64, result has 54.9 percent of original size [2020-10-19 18:48:32,218 INFO L545 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,218 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:138, output treesize:19 [2020-10-19 18:48:32,237 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-19 18:48:32,238 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,243 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:32,244 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,244 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:19 [2020-10-19 18:48:32,272 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-19 18:48:32,273 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,280 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:32,282 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-19 18:48:32,282 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-10-19 18:48:32,351 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2020-10-19 18:48:32,355 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,369 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:32,371 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-10-19 18:48:32,372 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:21 [2020-10-19 18:48:32,405 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2020-10-19 18:48:32,407 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,411 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:48:32,415 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:48:32,415 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:26, output treesize:3 [2020-10-19 18:48:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:48:32,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:48:32,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-10-19 18:48:32,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008814411] [2020-10-19 18:48:32,421 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:48:32,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:48:32,421 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2020-10-19 18:48:32,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:48:32,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433774264] [2020-10-19 18:48:32,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:48:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:32,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:48:32,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:48:32,434 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:48:32,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:48:32,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:48:32,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:48:32,528 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand 11 states. [2020-10-19 18:48:32,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:48:32,712 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2020-10-19 18:48:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:48:32,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 65 transitions. [2020-10-19 18:48:32,716 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:48:32,716 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:48:32,717 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:48:32,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:48:32,717 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 18:48:32,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:48:32,717 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:48:32,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:48:32,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:48:32 BoogieIcfgContainer [2020-10-19 18:48:32,725 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:48:32,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:48:32,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:48:32,726 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:48:32,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:48:16" (3/4) ... [2020-10-19 18:48:32,729 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:48:32,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:48:32,731 INFO L168 Benchmark]: Toolchain (without parser) took 17690.47 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 376.4 MB). Free memory was 955.9 MB in the beginning and 987.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 344.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:32,731 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:48:32,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:32,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.80 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. [2020-10-19 18:48:32,732 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:32,733 INFO L168 Benchmark]: RCFGBuilder took 423.85 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:32,733 INFO L168 Benchmark]: BuchiAutomizer took 16548.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 1.1 GB in the beginning and 987.6 MB in the end (delta: 106.7 MB). Peak memory consumption was 344.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:48:32,734 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 1.4 GB. Free memory is still 987.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:48:32,736 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 614.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.80 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 28.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 423.85 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 16548.44 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 237.5 MB). Free memory was 1.1 GB in the beginning and 987.6 MB in the end (delta: 106.7 MB). Peak memory consumption was 344.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.87 ms. Allocated memory is still 1.4 GB. Free memory is still 987.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 7 terminating modules (4 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 14.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 79 SDtfs, 93 SDslu, 165 SDs, 0 SdLazy, 177 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital874 mio100 ax103 hnf99 lsp94 ukn41 mio100 lsp36 div102 bol100 ite100 ukn100 eq186 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms 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...