./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.03_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-restricted-15/b.03_assume.c -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 95e81a05c22c6fe15d385f792d07c0bc4a245941 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:30:44,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:30:44,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:30:44,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:30:44,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:30:44,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:30:44,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:30:44,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:30:44,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:30:44,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:30:44,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:30:44,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:30:44,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:30:44,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:30:44,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:30:44,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:30:44,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:30:44,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:30:44,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:30:44,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:30:44,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:30:44,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:30:44,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:30:44,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:30:44,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:30:44,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:30:44,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:30:44,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:30:44,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:30:44,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:30:44,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:30:44,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:30:44,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:30:44,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:30:44,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:30:44,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:30:44,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:30:44,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:30:44,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:30:44,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:30:44,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:30:44,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:30:44,761 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:30:44,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:30:44,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:30:44,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:30:44,763 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:30:44,764 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:30:44,764 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:30:44,764 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:30:44,765 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:30:44,765 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:30:44,765 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:30:44,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:30:44,766 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:30:44,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:30:44,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:30:44,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:30:44,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:30:44,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:30:44,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:30:44,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:30:44,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:30:44,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:30:44,769 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:30:44,769 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95e81a05c22c6fe15d385f792d07c0bc4a245941 [2021-07-06 18:30:44,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:30:44,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:30:44,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:30:44,985 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:30:44,985 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:30:44,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.03_assume.c [2021-07-06 18:30:45,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0125bceb0/0de33cf6fb5e40b6ae6ccf1343e59c41/FLAGfdafd966b [2021-07-06 18:30:45,363 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:30:45,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.03_assume.c [2021-07-06 18:30:45,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0125bceb0/0de33cf6fb5e40b6ae6ccf1343e59c41/FLAGfdafd966b [2021-07-06 18:30:45,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0125bceb0/0de33cf6fb5e40b6ae6ccf1343e59c41 [2021-07-06 18:30:45,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:30:45,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:30:45,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:30:45,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:30:45,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:30:45,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c99f311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45, skipping insertion in model container [2021-07-06 18:30:45,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:30:45,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:30:45,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:30:45,502 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:30:45,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:30:45,519 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:30:45,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45 WrapperNode [2021-07-06 18:30:45,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:30:45,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:30:45,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:30:45,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:30:45,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:30:45,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:30:45,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:30:45,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:30:45,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:30:45,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:30:45,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:30:45,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:30:45,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (1/1) ... [2021-07-06 18:30:45,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:45,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:45,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 18:30:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:30:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:30:45,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:30:45,767 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 18:30:45,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:45 BoogieIcfgContainer [2021-07-06 18:30:45,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:30:45,769 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:30:45,770 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:30:45,772 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:30:45,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:45,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:30:45" (1/3) ... [2021-07-06 18:30:45,773 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ad39bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:30:45, skipping insertion in model container [2021-07-06 18:30:45,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:45,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:30:45" (2/3) ... [2021-07-06 18:30:45,774 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ad39bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:30:45, skipping insertion in model container [2021-07-06 18:30:45,774 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:30:45,774 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:45" (3/3) ... [2021-07-06 18:30:45,775 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.03_assume.c [2021-07-06 18:30:45,815 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:30:45,816 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:30:45,816 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:30:45,816 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:30:45,816 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:30:45,816 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:30:45,816 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:30:45,816 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:30:45,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:45,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:30:45,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:30:45,836 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:30:45,838 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:30:45,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:30:45,839 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:30:45,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:45,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:30:45,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:30:45,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:30:45,840 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-07-06 18:30:45,840 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:30:45,844 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L9-2true [2021-07-06 18:30:45,844 INFO L793 eck$LassoCheckResult]: Loop: 6#L9-2true assume !!((main_~x~0 > 0 && main_~x~0 > main_~y~0) && main_~y~0 <= 2147483647 - main_~x~0);main_~y~0 := main_~y~0 + main_~x~0; 6#L9-2true [2021-07-06 18:30:45,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:45,851 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-07-06 18:30:45,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:45,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920031555] [2021-07-06 18:30:45,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:45,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,904 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,906 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,914 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:45,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:45,916 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-07-06 18:30:45,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:45,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593933979] [2021-07-06 18:30:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:45,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,923 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,926 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:45,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:45,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-07-06 18:30:45,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:30:45,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379277983] [2021-07-06 18:30:45,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:30:45,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:30:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,932 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:30:45,936 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:30:45,938 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:30:45,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:30:45,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-06 18:30:46,021 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:46,022 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:46,022 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:46,022 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:46,022 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:30:46,022 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,022 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:46,023 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:46,023 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.03_assume.c_Iteration1_Loop [2021-07-06 18:30:46,023 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:46,023 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:46,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:46,101 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:30:46,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-07-06 18:30:46,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:46,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:46,130 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:30:46,130 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:30:46,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-07-06 18:30:46,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-07-06 18:30:46,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:46,159 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:46,172 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:30:46,173 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:30:46,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,192 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,192 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-07-06 18:30:46,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:30:46,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:46,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,239 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,251 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:30:46,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:30:46,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-07-06 18:30:46,291 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 18:30:46,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,296 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:30:46,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:30:46,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:30:46,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:30:46,296 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:30:46,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,297 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:30:46,297 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:30:46,297 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.03_assume.c_Iteration1_Loop [2021-07-06 18:30:46,297 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:30:46,297 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:30:46,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:30:46,381 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:30:46,384 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:30:46,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-07-06 18:30:46,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:30:46,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:46,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:46,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:46,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:46,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:30:46,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:30:46,417 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:30:46,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,434 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-07-06 18:30:46,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:30:46,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:46,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:46,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:46,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:46,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:30:46,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:30:46,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:30:46,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,478 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-07-06 18:30:46,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:30:46,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:30:46,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:30:46,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:30:46,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:30:46,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:30:46,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:30:46,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:30:46,492 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:30:46,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-07-06 18:30:46,520 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 18:30:46,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:30:46,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:30:46,522 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:30:46,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-07-06 18:30:46,524 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:30:46,524 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:30:46,524 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:30:46,525 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-07-06 18:30:46,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,545 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:30:46,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:30:46,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-07-06 18:30:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:46,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:30:46,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:30:46,618 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-06 18:30:46,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:30:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:30:46,627 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-07-06 18:30:46,631 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:46,654 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 18 transitions. Complement of second has 5 states. [2021-07-06 18:30:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-07-06 18:30:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:30:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-07-06 18:30:46,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-07-06 18:30:46,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:46,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-07-06 18:30:46,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:46,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-07-06 18:30:46,658 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:30:46,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-07-06 18:30:46,661 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:30:46,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-07-06 18:30:46,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:30:46,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:30:46,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:30:46,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:30:46,663 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:46,663 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:46,664 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:30:46,664 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:30:46,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:30:46,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:30:46,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:30:46,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:30:46 BoogieIcfgContainer [2021-07-06 18:30:46,668 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:30:46,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:30:46,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:30:46,669 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:30:46,670 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:30:45" (3/4) ... [2021-07-06 18:30:46,671 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:30:46,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:30:46,673 INFO L168 Benchmark]: Toolchain (without parser) took 1289.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.9 MB in the beginning and 41.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 1.9 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:46,673 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:46,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.43 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 36.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:46,676 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.29 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.7 MB in the beginning and 51.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:46,680 INFO L168 Benchmark]: Boogie Preprocessor took 19.12 ms. Allocated memory is still 67.1 MB. Free memory was 51.9 MB in the beginning and 51.0 MB in the end (delta: 959.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:46,680 INFO L168 Benchmark]: RCFGBuilder took 179.37 ms. Allocated memory is still 67.1 MB. Free memory was 51.0 MB in the beginning and 42.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:30:46,680 INFO L168 Benchmark]: BuchiAutomizer took 898.35 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 635.2 kB. Max. memory is 16.1 GB. [2021-07-06 18:30:46,681 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 67.1 MB. Free memory was 41.4 MB in the beginning and 41.1 MB in the end (delta: 339.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:30:46,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 35.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 136.43 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 36.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.29 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 36.7 MB in the beginning and 51.9 MB in the end (delta: -15.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.12 ms. Allocated memory is still 67.1 MB. Free memory was 51.9 MB in the beginning and 51.0 MB in the end (delta: 959.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 179.37 ms. Allocated memory is still 67.1 MB. Free memory was 51.0 MB in the beginning and 42.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 898.35 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 41.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 635.2 kB. Max. memory is 16.1 GB. * Witness Printer took 3.20 ms. Allocated memory is still 67.1 MB. Free memory was 41.4 MB in the beginning and 41.1 MB in the end (delta: 339.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf95 smp100 dnf100 smp100 tf108 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:30:46,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...