./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash a7435a8a159b5861bd1c460a089ad96b4b111518 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:08:44,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:08:44,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:08:44,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:08:44,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:08:44,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:08:44,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:08:44,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:08:44,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:08:44,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:08:44,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:08:44,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:08:44,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:08:44,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:08:44,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:08:44,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:08:44,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:08:44,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:08:44,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:08:44,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:08:44,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:08:44,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:08:44,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:08:44,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:08:44,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:08:44,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:08:44,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:08:44,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:08:44,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:08:44,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:08:44,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:08:44,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:08:44,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:08:44,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:08:44,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:08:44,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:08:44,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:08:44,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:08:44,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:08:44,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:08:44,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:08:44,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:08:44,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:08:44,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:08:44,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:08:44,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:08:44,587 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:08:44,587 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:08:44,587 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:08:44,587 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:08:44,588 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:08:44,588 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:08:44,589 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:08:44,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:08:44,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:08:44,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:08:44,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:08:44,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:08:44,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:08:44,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:08:44,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:08:44,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:08:44,592 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:08:44,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:08:44,592 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:08:44,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:08:44,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:08:44,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:08:44,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:08:44,593 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:08:44,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:08:44,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:08:44,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:08:44,594 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:08:44,596 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:08:44,596 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7435a8a159b5861bd1c460a089ad96b4b111518 [2020-10-20 08:08:44,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:08:44,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:08:44,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:08:44,829 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:08:44,830 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:08:44,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-20 08:08:44,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9be5536a/252c0e0f7e9c441f9f1562d80b0caa86/FLAG6c7ee8193 [2020-10-20 08:08:45,459 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:08:45,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-20 08:08:45,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9be5536a/252c0e0f7e9c441f9f1562d80b0caa86/FLAG6c7ee8193 [2020-10-20 08:08:45,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9be5536a/252c0e0f7e9c441f9f1562d80b0caa86 [2020-10-20 08:08:45,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:08:45,749 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:08:45,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:08:45,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:08:45,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:08:45,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:08:45" (1/1) ... [2020-10-20 08:08:45,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706050ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:45, skipping insertion in model container [2020-10-20 08:08:45,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:08:45" (1/1) ... [2020-10-20 08:08:45,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:08:45,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:08:46,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:08:46,070 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:08:46,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:08:46,146 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:08:46,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46 WrapperNode [2020-10-20 08:08:46,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:08:46,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:08:46,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:08:46,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:08:46,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:08:46,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:08:46,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:08:46,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:08:46,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... [2020-10-20 08:08:46,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:08:46,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:08:46,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:08:46,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:08:46,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 08:08:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:08:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:08:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:08:46,941 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:08:46,942 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-20 08:08:46,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:46 BoogieIcfgContainer [2020-10-20 08:08:46,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:08:46,945 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:08:46,945 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:08:46,949 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:08:46,950 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:46,950 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:08:45" (1/3) ... [2020-10-20 08:08:46,951 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2460f7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:08:46, skipping insertion in model container [2020-10-20 08:08:46,951 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:46,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:08:46" (2/3) ... [2020-10-20 08:08:46,952 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2460f7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:08:46, skipping insertion in model container [2020-10-20 08:08:46,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:08:46,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:46" (3/3) ... [2020-10-20 08:08:46,954 INFO L373 chiAutomizerObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c [2020-10-20 08:08:47,003 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:08:47,004 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:08:47,004 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:08:47,004 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:08:47,005 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:08:47,005 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:08:47,005 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:08:47,005 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:08:47,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states. [2020-10-20 08:08:47,069 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2020-10-20 08:08:47,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:47,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:47,081 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,081 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,082 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:08:47,082 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states. [2020-10-20 08:08:47,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 63 [2020-10-20 08:08:47,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:47,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:47,097 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,097 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,104 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 8#L-1true havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 37#L246true assume !(0 == ~r1~0);init_~tmp~0 := 0; 36#L246-1true init_#res := init_~tmp~0; 5#L343true main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 19#L395true assume !(0 == main_~i2~0); 10#L395-2true ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 46#L405-2true [2020-10-20 08:08:47,105 INFO L796 eck$LassoCheckResult]: Loop: 46#L405-2true assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 89#L112true assume !(0 != ~mode1~0 % 256); 49#L130true assume !(0 != ~alive1~0 % 256); 47#L130-2true ~mode1~0 := 1; 99#L112-2true havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 30#L144true assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 20#L147true assume !(node2_~m2~0 != ~nomsg~0); 18#L147-1true ~mode2~0 := 0; 40#L144-2true havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 92#L178true assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 94#L181true assume !(node3_~m3~0 != ~nomsg~0); 83#L181-1true ~mode3~0 := 0; 90#L178-2true havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 55#L212true assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 60#L215true assume !(node4_~m4~0 != ~nomsg~0); 58#L215-1true ~mode4~0 := 0; 53#L212-2true ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 21#L351true assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 12#L351-1true check_#res := check_~tmp~1; 80#L363true main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 75#L432true assume !(0 == assert_~arg % 256); 54#L427true main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 46#L405-2true [2020-10-20 08:08:47,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:47,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1938506578, now seen corresponding path program 1 times [2020-10-20 08:08:47,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:47,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81888692] [2020-10-20 08:08:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:47,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:47,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81888692] [2020-10-20 08:08:47,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:47,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:47,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570322167] [2020-10-20 08:08:47,342 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:08:47,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:47,343 INFO L82 PathProgramCache]: Analyzing trace with hash -2060736829, now seen corresponding path program 1 times [2020-10-20 08:08:47,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:47,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468230149] [2020-10-20 08:08:47,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:47,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:47,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468230149] [2020-10-20 08:08:47,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:47,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:47,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349975592] [2020-10-20 08:08:47,491 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:08:47,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:47,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:08:47,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:08:47,510 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 5 states. [2020-10-20 08:08:47,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:47,650 INFO L93 Difference]: Finished difference Result 161 states and 258 transitions. [2020-10-20 08:08:47,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 08:08:47,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 258 transitions. [2020-10-20 08:08:47,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-10-20 08:08:47,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 152 states and 226 transitions. [2020-10-20 08:08:47,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2020-10-20 08:08:47,667 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2020-10-20 08:08:47,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 226 transitions. [2020-10-20 08:08:47,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:47,669 INFO L691 BuchiCegarLoop]: Abstraction has 152 states and 226 transitions. [2020-10-20 08:08:47,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 226 transitions. [2020-10-20 08:08:47,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 91. [2020-10-20 08:08:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 08:08:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2020-10-20 08:08:47,708 INFO L714 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2020-10-20 08:08:47,708 INFO L594 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2020-10-20 08:08:47,709 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:08:47,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2020-10-20 08:08:47,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-10-20 08:08:47,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:47,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:47,712 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,713 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:47,713 INFO L794 eck$LassoCheckResult]: Stem: 335#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 293#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 294#L246 assume 0 == ~r1~0; 354#L247 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 313#L248 assume ~id1~0 >= 0; 314#L249 assume 0 == ~st1~0; 342#L250 assume ~send1~0 == ~id1~0; 346#L251 assume 0 == ~mode1~0 % 256; 280#L252 assume ~id2~0 >= 0; 281#L253 assume 0 == ~st2~0; 327#L254 assume ~send2~0 == ~id2~0; 295#L255 assume 0 == ~mode2~0 % 256; 296#L256 assume ~id3~0 >= 0; 336#L257 assume 0 == ~st3~0; 355#L258 assume ~send3~0 == ~id3~0; 315#L259 assume 0 == ~mode3~0 % 256; 316#L260 assume ~id4~0 >= 0; 344#L261 assume 0 == ~st4~0; 347#L262 assume ~send4~0 == ~id4~0; 284#L263 assume 0 == ~mode4~0 % 256; 285#L264 assume ~id1~0 != ~id2~0; 328#L265 assume ~id1~0 != ~id3~0; 297#L266 assume ~id1~0 != ~id4~0; 298#L267 assume ~id2~0 != ~id3~0; 337#L268 assume ~id2~0 != ~id4~0; 356#L269 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 352#L246-1 init_#res := init_~tmp~0; 282#L343 main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 283#L395 assume !(0 == main_~i2~0); 299#L395-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 289#L405-2 [2020-10-20 08:08:47,714 INFO L796 eck$LassoCheckResult]: Loop: 289#L405-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 360#L112 assume !(0 != ~mode1~0 % 256); 361#L130 assume !(0 != ~alive1~0 % 256); 309#L130-2 ~mode1~0 := 1; 365#L112-2 havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 349#L144 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 329#L147 assume !(node2_~m2~0 != ~nomsg~0); 304#L147-1 ~mode2~0 := 0; 312#L144-2 havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 359#L178 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 364#L181 assume !(node3_~m3~0 != ~nomsg~0); 277#L181-1 ~mode3~0 := 0; 345#L178-2 havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 290#L212 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 292#L215 assume !(node4_~m4~0 != ~nomsg~0); 305#L215-1 ~mode4~0 := 0; 286#L212-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 287#L351 assume !(~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1);check_~tmp~1 := 0; 300#L351-1 check_#res := check_~tmp~1; 301#L363 main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 341#L432 assume !(0 == assert_~arg % 256); 288#L427 main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 289#L405-2 [2020-10-20 08:08:47,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 1 times [2020-10-20 08:08:47,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:47,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988641586] [2020-10-20 08:08:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:47,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:47,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:47,880 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:47,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2060736829, now seen corresponding path program 2 times [2020-10-20 08:08:47,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:47,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465814470] [2020-10-20 08:08:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:47,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465814470] [2020-10-20 08:08:47,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:47,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 08:08:47,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748533571] [2020-10-20 08:08:47,985 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-20 08:08:47,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:47,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 08:08:47,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 08:08:47,986 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 38 Second operand 5 states. [2020-10-20 08:08:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:48,082 INFO L93 Difference]: Finished difference Result 94 states and 130 transitions. [2020-10-20 08:08:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:08:48,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 130 transitions. [2020-10-20 08:08:48,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-10-20 08:08:48,087 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 91 states and 126 transitions. [2020-10-20 08:08:48,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2020-10-20 08:08:48,088 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2020-10-20 08:08:48,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 126 transitions. [2020-10-20 08:08:48,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:48,089 INFO L691 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-10-20 08:08:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 126 transitions. [2020-10-20 08:08:48,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-10-20 08:08:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-20 08:08:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2020-10-20 08:08:48,106 INFO L714 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-10-20 08:08:48,106 INFO L594 BuchiCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-10-20 08:08:48,106 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:08:48,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 126 transitions. [2020-10-20 08:08:48,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 61 [2020-10-20 08:08:48,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:08:48,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:08:48,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:48,111 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:08:48,111 INFO L794 eck$LassoCheckResult]: Stem: 533#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(49);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~nomsg~0 := -1;~r1~0 := 0;~p1~0 := 0;~p1_old~0 := 0;~p1_new~0 := 0;~id1~0 := 0;~st1~0 := 0;~send1~0 := 0;~mode1~0 := 0;~alive1~0 := 0;~p2~0 := 0;~p2_old~0 := 0;~p2_new~0 := 0;~id2~0 := 0;~st2~0 := 0;~send2~0 := 0;~mode2~0 := 0;~alive2~0 := 0;~p3~0 := 0;~p3_old~0 := 0;~p3_new~0 := 0;~id3~0 := 0;~st3~0 := 0;~send3~0 := 0;~mode3~0 := 0;~alive3~0 := 0;~p4~0 := 0;~p4_old~0 := 0;~p4_new~0 := 0;~id4~0 := 0;~st4~0 := 0;~send4~0 := 0;~mode4~0 := 0;~alive4~0 := 0;~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[0 := #funAddr~node1.base], ~nodes~0.offset[0 := #funAddr~node1.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[1 := #funAddr~node2.base], ~nodes~0.offset[1 := #funAddr~node2.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[2 := #funAddr~node3.base], ~nodes~0.offset[2 := #funAddr~node3.offset];~nodes~0.base, ~nodes~0.offset := ~nodes~0.base[3 := #funAddr~node4.base], ~nodes~0.offset[3 := #funAddr~node4.offset]; 492#L-1 havoc main_#res;havoc main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~ret35, main_#t~ret36, main_#t~post37, main_~c1~0, main_~i2~0;havoc main_~c1~0;havoc main_~i2~0;main_~c1~0 := 0;~r1~0 := main_#t~nondet14;havoc main_#t~nondet14;~id1~0 := main_#t~nondet15;havoc main_#t~nondet15;~st1~0 := main_#t~nondet16;havoc main_#t~nondet16;~send1~0 := main_#t~nondet17;havoc main_#t~nondet17;~mode1~0 := main_#t~nondet18;havoc main_#t~nondet18;~alive1~0 := main_#t~nondet19;havoc main_#t~nondet19;~id2~0 := main_#t~nondet20;havoc main_#t~nondet20;~st2~0 := main_#t~nondet21;havoc main_#t~nondet21;~send2~0 := main_#t~nondet22;havoc main_#t~nondet22;~mode2~0 := main_#t~nondet23;havoc main_#t~nondet23;~alive2~0 := main_#t~nondet24;havoc main_#t~nondet24;~id3~0 := main_#t~nondet25;havoc main_#t~nondet25;~st3~0 := main_#t~nondet26;havoc main_#t~nondet26;~send3~0 := main_#t~nondet27;havoc main_#t~nondet27;~mode3~0 := main_#t~nondet28;havoc main_#t~nondet28;~alive3~0 := main_#t~nondet29;havoc main_#t~nondet29;~id4~0 := main_#t~nondet30;havoc main_#t~nondet30;~st4~0 := main_#t~nondet31;havoc main_#t~nondet31;~send4~0 := main_#t~nondet32;havoc main_#t~nondet32;~mode4~0 := main_#t~nondet33;havoc main_#t~nondet33;~alive4~0 := main_#t~nondet34;havoc main_#t~nondet34;havoc init_#res;havoc init_~tmp~0;havoc init_~tmp~0; 493#L246 assume 0 == ~r1~0; 551#L247 assume ~alive1~0 % 256 + ~alive2~0 % 256 + ~alive3~0 % 256 + ~alive4~0 % 256 >= 1; 510#L248 assume ~id1~0 >= 0; 511#L249 assume 0 == ~st1~0; 540#L250 assume ~send1~0 == ~id1~0; 543#L251 assume 0 == ~mode1~0 % 256; 479#L252 assume ~id2~0 >= 0; 480#L253 assume 0 == ~st2~0; 524#L254 assume ~send2~0 == ~id2~0; 490#L255 assume 0 == ~mode2~0 % 256; 491#L256 assume ~id3~0 >= 0; 532#L257 assume 0 == ~st3~0; 552#L258 assume ~send3~0 == ~id3~0; 512#L259 assume 0 == ~mode3~0 % 256; 513#L260 assume ~id4~0 >= 0; 541#L261 assume 0 == ~st4~0; 544#L262 assume ~send4~0 == ~id4~0; 481#L263 assume 0 == ~mode4~0 % 256; 482#L264 assume ~id1~0 != ~id2~0; 525#L265 assume ~id1~0 != ~id3~0; 494#L266 assume ~id1~0 != ~id4~0; 495#L267 assume ~id2~0 != ~id3~0; 534#L268 assume ~id2~0 != ~id4~0; 553#L269 assume ~id3~0 != ~id4~0;init_~tmp~0 := 1; 549#L246-1 init_#res := init_~tmp~0; 477#L343 main_#t~ret35 := init_#res;main_~i2~0 := main_#t~ret35;havoc main_#t~ret35; 478#L395 assume !(0 == main_~i2~0); 496#L395-2 ~p1_old~0 := ~nomsg~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~nomsg~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~nomsg~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~nomsg~0;~p4_new~0 := ~nomsg~0;main_~i2~0 := 0; 486#L405-2 [2020-10-20 08:08:48,111 INFO L796 eck$LassoCheckResult]: Loop: 486#L405-2 assume !!(main_~i2~0 < 8);havoc node1_#t~ite7, node1_~m1~0;havoc node1_~m1~0;node1_~m1~0 := ~nomsg~0; 557#L112 assume !(0 != ~mode1~0 % 256); 558#L130 assume !(0 != ~alive1~0 % 256); 506#L130-2 ~mode1~0 := 1; 562#L112-2 havoc node2_#t~ite8, node2_#t~ite9, node2_~m2~0;havoc node2_~m2~0;node2_~m2~0 := ~nomsg~0; 546#L144 assume 0 != ~mode2~0 % 256;node2_~m2~0 := ~p1_old~0;~p1_old~0 := ~nomsg~0; 526#L147 assume !(node2_~m2~0 != ~nomsg~0); 499#L147-1 ~mode2~0 := 0; 509#L144-2 havoc node3_#t~ite10, node3_#t~ite11, node3_~m3~0;havoc node3_~m3~0;node3_~m3~0 := ~nomsg~0; 556#L178 assume 0 != ~mode3~0 % 256;node3_~m3~0 := ~p2_old~0;~p2_old~0 := ~nomsg~0; 561#L181 assume !(node3_~m3~0 != ~nomsg~0); 474#L181-1 ~mode3~0 := 0; 542#L178-2 havoc node4_#t~ite12, node4_#t~ite13, node4_~m4~0;havoc node4_~m4~0;node4_~m4~0 := ~nomsg~0; 487#L212 assume 0 != ~mode4~0 % 256;node4_~m4~0 := ~p3_old~0;~p3_old~0 := ~nomsg~0; 489#L215 assume !(node4_~m4~0 != ~nomsg~0); 504#L215-1 ~mode4~0 := 0; 483#L212-2 ~p1_old~0 := ~p1_new~0;~p1_new~0 := ~nomsg~0;~p2_old~0 := ~p2_new~0;~p2_new~0 := ~nomsg~0;~p3_old~0 := ~p3_new~0;~p3_new~0 := ~nomsg~0;~p4_old~0 := ~p4_new~0;~p4_new~0 := ~nomsg~0;havoc check_#res;havoc check_~tmp~1;havoc check_~tmp~1; 484#L351 assume ~st1~0 + ~st2~0 + ~st3~0 + ~st4~0 <= 1; 528#L352 assume ~r1~0 < 4;check_~tmp~1 := 1; 500#L351-1 check_#res := check_~tmp~1; 501#L363 main_#t~ret36 := check_#res;main_~c1~0 := main_#t~ret36;havoc main_#t~ret36;assert_#in~arg := (if 0 == main_~c1~0 then 0 else 1);havoc assert_~arg;assert_~arg := assert_#in~arg; 538#L432 assume !(0 == assert_~arg % 256); 485#L427 main_#t~post37 := main_~i2~0;main_~i2~0 := 1 + main_#t~post37;havoc main_#t~post37; 486#L405-2 [2020-10-20 08:08:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:48,112 INFO L82 PathProgramCache]: Analyzing trace with hash -805895157, now seen corresponding path program 2 times [2020-10-20 08:08:48,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:48,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317909538] [2020-10-20 08:08:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:48,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:48,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:48,231 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:48,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:48,232 INFO L82 PathProgramCache]: Analyzing trace with hash 158338649, now seen corresponding path program 1 times [2020-10-20 08:08:48,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:48,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205881110] [2020-10-20 08:08:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:48,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:08:48,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:08:48,257 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:08:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash 300162831, now seen corresponding path program 1 times [2020-10-20 08:08:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:08:48,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080203336] [2020-10-20 08:08:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:08:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:48,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080203336] [2020-10-20 08:08:48,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:08:48,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:08:48,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407134496] [2020-10-20 08:08:48,644 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-20 08:08:48,898 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-20 08:08:48,911 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:08:48,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:08:48,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:08:48,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:08:48,913 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 08:08:48,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:48,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:08:48,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:08:48,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-20 08:08:48,914 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:08:48,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:08:48,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:48,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,612 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:08:49,612 INFO L404 LassoAnalysis]: Checking for nontermination... 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:49,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 08:08:49,626 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:49,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 08:08:49,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 08:08:49,774 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 08:08:49,776 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:08:49,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:08:49,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:08:49,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:08:49,777 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:08:49,777 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:49,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:08:49,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:08:49,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: pals_lcr-var-start-time.4.2.ufo.BOUNDED-8.pals.c_Iteration3_Loop [2020-10-20 08:08:49,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:08:49,778 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:08:49,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:49,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:08:50,471 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:08:50,476 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:08:50,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:08:50,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,560 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,629 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 [2020-10-20 08:08:50,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:08:50,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:08:50,717 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 [2020-10-20 08:08:50,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:08:50,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:08:50,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:08:50,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:08:50,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,917 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 [2020-10-20 08:08:50,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:08:50,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:08:50,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:50,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:08:50,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:08:50,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:08:50,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:08:50,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:08:50,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:08:50,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:08:50,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:08:50,988 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:08:50,999 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 08:08:51,000 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:08:51,017 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:08:51,017 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 08:08:51,017 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:08:51,018 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i2~0) = -2*ULTIMATE.start_main_~i2~0 + 15 Supporting invariants [] [2020-10-20 08:08:51,049 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 08:08:51,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:08:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:51,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:08:51,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:08:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:08:51,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:08:51,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:08:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:08:51,229 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 08:08:51,229 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 91 states and 126 transitions. cyclomatic complexity: 36 Second operand 3 states. [2020-10-20 08:08:51,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 91 states and 126 transitions. cyclomatic complexity: 36. Second operand 3 states. Result 152 states and 223 transitions. Complement of second has 4 states. [2020-10-20 08:08:51,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 08:08:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:08:51,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2020-10-20 08:08:51,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 30 letters. Loop has 23 letters. [2020-10-20 08:08:51,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:51,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 53 letters. Loop has 23 letters. [2020-10-20 08:08:51,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:51,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 126 transitions. Stem has 30 letters. Loop has 46 letters. [2020-10-20 08:08:51,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:08:51,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 223 transitions. [2020-10-20 08:08:51,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:51,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 0 states and 0 transitions. [2020-10-20 08:08:51,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:08:51,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:08:51,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:08:51,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:51,310 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:51,310 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:51,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:08:51,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 08:08:51,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 08:08:51,310 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-10-20 08:08:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:08:51,311 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-10-20 08:08:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 08:08:51,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-10-20 08:08:51,311 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:51,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 08:08:51,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:08:51,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:08:51,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:08:51,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:08:51,312 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:51,312 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:51,312 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:08:51,312 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:08:51,313 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:08:51,313 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:08:51,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:08:51,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:08:51 BoogieIcfgContainer [2020-10-20 08:08:51,319 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:08:51,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:08:51,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:08:51,320 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:08:51,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:08:46" (3/4) ... [2020-10-20 08:08:51,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:08:51,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:08:51,326 INFO L168 Benchmark]: Toolchain (without parser) took 5583.48 ms. Allocated memory was 42.5 MB in the beginning and 83.4 MB in the end (delta: 40.9 MB). Free memory was 24.4 MB in the beginning and 23.7 MB in the end (delta: 695.3 kB). Peak memory consumption was 41.6 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,327 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.80 ms. Allocated memory was 42.5 MB in the beginning and 46.1 MB in the end (delta: 3.7 MB). Free memory was 23.4 MB in the beginning and 23.2 MB in the end (delta: 256.3 kB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.11 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 20.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,329 INFO L168 Benchmark]: Boogie Preprocessor took 38.34 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 18.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,330 INFO L168 Benchmark]: RCFGBuilder took 702.52 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 18.5 MB in the beginning and 21.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,331 INFO L168 Benchmark]: BuchiAutomizer took 4374.69 ms. Allocated memory was 50.3 MB in the beginning and 83.4 MB in the end (delta: 33.0 MB). Free memory was 21.9 MB in the beginning and 24.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,331 INFO L168 Benchmark]: Witness Printer took 4.09 ms. Allocated memory is still 83.4 MB. Free memory was 24.6 MB in the beginning and 23.7 MB in the end (delta: 957.2 kB). Peak memory consumption was 957.2 kB. Max. memory is 14.3 GB. [2020-10-20 08:08:51,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 10.4 MB in the beginning and 10.3 MB in the end (delta: 47.6 kB). Peak memory consumption was 47.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 395.80 ms. Allocated memory was 42.5 MB in the beginning and 46.1 MB in the end (delta: 3.7 MB). Free memory was 23.4 MB in the beginning and 23.2 MB in the end (delta: 256.3 kB). Peak memory consumption was 13.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 55.11 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 20.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 38.34 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 18.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 702.52 ms. Allocated memory was 46.1 MB in the beginning and 50.3 MB in the end (delta: 4.2 MB). Free memory was 18.5 MB in the beginning and 21.9 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 4374.69 ms. Allocated memory was 50.3 MB in the beginning and 83.4 MB in the end (delta: 33.0 MB). Free memory was 21.9 MB in the beginning and 24.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 14.3 GB. * Witness Printer took 4.09 ms. Allocated memory is still 83.4 MB. Free memory was 24.6 MB in the beginning and 23.7 MB in the end (delta: 957.2 kB). Peak memory consumption was 957.2 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i2 + 15 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 91 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 403 SDtfs, 227 SDslu, 895 SDs, 0 SdLazy, 36 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital120 mio100 ax139 hnf109 lsp25 ukn100 mio100 lsp100 div102 bol100 ite100 ukn100 eq222 hnf85 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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! Received shutdown request...