./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9d8db831e66fcf4f47c300fcbd3a74f1185238a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:44:34,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:44:34,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:44:34,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:44:34,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:44:34,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:44:34,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:44:34,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:44:34,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:44:34,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:44:34,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:44:34,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:44:34,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:44:34,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:44:34,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:44:34,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:44:34,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:44:34,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:44:34,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:44:34,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:44:34,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:44:34,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:44:34,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:44:34,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:44:34,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:44:34,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:44:34,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:44:34,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:44:34,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:44:34,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:44:34,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:44:34,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:44:34,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:44:34,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:44:34,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:44:34,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:44:34,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:44:34,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:44:34,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:44:34,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:44:34,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:44:34,227 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:44:34,250 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:44:34,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:44:34,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:44:34,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:44:34,252 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:44:34,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:44:34,253 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:44:34,253 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:44:34,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:44:34,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:44:34,254 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:44:34,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:44:34,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:44:34,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:44:34,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:44:34,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:44:34,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:44:34,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:44:34,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:44:34,255 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:44:34,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:44:34,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:44:34,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:44:34,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:44:34,256 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:44:34,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:44:34,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:44:34,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:44:34,257 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:44:34,258 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:44:34,258 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9d8db831e66fcf4f47c300fcbd3a74f1185238a [2020-10-19 18:44:34,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:44:34,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:44:34,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:44:34,581 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:44:34,582 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:44:34,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-19 18:44:34,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e2fb50c/61972d2dc21d43129c8720e4df85d9d1/FLAG8b2061ede [2020-10-19 18:44:35,161 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:44:35,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-19 18:44:35,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e2fb50c/61972d2dc21d43129c8720e4df85d9d1/FLAG8b2061ede [2020-10-19 18:44:35,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e2fb50c/61972d2dc21d43129c8720e4df85d9d1 [2020-10-19 18:44:35,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:44:35,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:44:35,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:35,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:44:35,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:44:35,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:35" (1/1) ... [2020-10-19 18:44:35,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13051898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:35, skipping insertion in model container [2020-10-19 18:44:35,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:44:35" (1/1) ... [2020-10-19 18:44:35,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:44:35,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:44:35,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:35,891 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:44:35,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:44:36,019 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:44:36,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36 WrapperNode [2020-10-19 18:44:36,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:44:36,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:36,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:44:36,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:44:36,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:44:36,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:44:36,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:44:36,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:44:36,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... [2020-10-19 18:44:36,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:44:36,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:44:36,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:44:36,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:44:36,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:44:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:44:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:44:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:44:36,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:44:36,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:44:36,411 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:44:36,412 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:44:36,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:36 BoogieIcfgContainer [2020-10-19 18:44:36,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:44:36,415 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:44:36,416 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:44:36,420 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:44:36,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:36,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:44:35" (1/3) ... [2020-10-19 18:44:36,423 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec719df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:36, skipping insertion in model container [2020-10-19 18:44:36,423 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:36,423 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:44:36" (2/3) ... [2020-10-19 18:44:36,424 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ec719df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:44:36, skipping insertion in model container [2020-10-19 18:44:36,424 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:44:36,424 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:36" (3/3) ... [2020-10-19 18:44:36,426 INFO L373 chiAutomizerObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-10-19 18:44:36,501 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:44:36,502 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:44:36,502 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:44:36,502 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:44:36,502 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:44:36,503 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:44:36,503 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:44:36,503 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:44:36,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:44:36,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:36,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:36,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:36,543 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:44:36,543 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:36,543 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:44:36,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-10-19 18:44:36,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:36,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:36,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:36,545 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:44:36,545 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:36,551 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 10#L558-2true [2020-10-19 18:44:36,552 INFO L796 eck$LassoCheckResult]: Loop: 10#L558-2true call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L552-1true assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4#L553true assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 9#L553-2true call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 5#L558true assume 0 != main_#t~mem10;havoc main_#t~mem10;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 10#L558-2true [2020-10-19 18:44:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:36,556 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 18:44:36,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:36,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922386882] [2020-10-19 18:44:36,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:36,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:36,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:36,704 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:36,705 INFO L82 PathProgramCache]: Analyzing trace with hash 35468238, now seen corresponding path program 1 times [2020-10-19 18:44:36,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:36,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398986239] [2020-10-19 18:44:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:36,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:36,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:36,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:36,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:36,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907724, now seen corresponding path program 1 times [2020-10-19 18:44:36,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:36,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232938658] [2020-10-19 18:44:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:36,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:36,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232938658] [2020-10-19 18:44:36,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:44:36,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:44:36,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016232035] [2020-10-19 18:44:37,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:44:37,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:44:37,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:44:37,105 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2020-10-19 18:44:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:44:37,160 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-10-19 18:44:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:44:37,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2020-10-19 18:44:37,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:37,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2020-10-19 18:44:37,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-10-19 18:44:37,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:44:37,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2020-10-19 18:44:37,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:44:37,170 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-19 18:44:37,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2020-10-19 18:44:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-19 18:44:37,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-19 18:44:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2020-10-19 18:44:37,197 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-19 18:44:37,198 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-10-19 18:44:37,198 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:44:37,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2020-10-19 18:44:37,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:37,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:37,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:37,199 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:44:37,199 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:37,200 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 37#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 38#L558-2 [2020-10-19 18:44:37,200 INFO L796 eck$LassoCheckResult]: Loop: 38#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 43#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 39#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 40#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 41#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 38#L558-2 [2020-10-19 18:44:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:37,200 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-19 18:44:37,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:37,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589725512] [2020-10-19 18:44:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,224 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,228 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:37,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:37,229 INFO L82 PathProgramCache]: Analyzing trace with hash 35468240, now seen corresponding path program 1 times [2020-10-19 18:44:37,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:37,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423574002] [2020-10-19 18:44:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,242 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,262 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:37,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907726, now seen corresponding path program 1 times [2020-10-19 18:44:37,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:37,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670650939] [2020-10-19 18:44:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:37,341 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:37,352 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:37,670 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-19 18:44:37,768 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:44:37,768 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:44:37,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:44:37,769 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:44:37,769 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:44:37,769 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:37,770 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:44:37,770 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:44:37,770 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration2_Lasso [2020-10-19 18:44:37,770 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:44:37,770 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:44:37,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:37,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,020 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-10-19 18:44:38,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:38,578 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:44:38,583 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:44:38,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:38,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:38,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:38,609 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:38,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:38,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:38,657 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:38,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:38,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:38,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:38,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:38,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:38,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:38,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:38,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:38,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:38,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:38,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:38,835 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 [2020-10-19 18:44:38,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:38,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:38,875 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 [2020-10-19 18:44:38,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:38,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:38,931 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 [2020-10-19 18:44:38,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:38,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:38,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:38,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:38,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:38,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:38,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:38,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:39,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:39,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:39,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:39,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:39,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:39,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:39,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:39,044 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) [2020-10-19 18:44:39,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:39,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:39,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:39,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:39,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:39,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:39,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:39,097 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 [2020-10-19 18:44:39,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:39,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:39,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:39,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:39,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:39,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:39,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:39,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:39,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:39,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:39,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:39,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:39,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:39,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:39,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:39,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:39,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:39,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:39,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:39,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:39,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:39,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:44:39,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:39,244 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:44:39,282 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:44:39,282 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:39,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:44:39,359 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:44:39,360 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:44:39,360 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 255 Supporting invariants [] [2020-10-19 18:44:39,470 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 18:44:39,479 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:44:39,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:39,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:44:39,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:39,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:44:39,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:39,601 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2020-10-19 18:44:39,602 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:44:39,608 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:44:39,609 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:44:39,609 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:17 [2020-10-19 18:44:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:39,628 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-10-19 18:44:39,629 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2020-10-19 18:44:39,676 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 21 transitions. Complement of second has 9 states. [2020-10-19 18:44:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-19 18:44:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 18:44:39,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-10-19 18:44:39,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2020-10-19 18:44:39,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:39,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2020-10-19 18:44:39,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:39,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2020-10-19 18:44:39,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:39,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-10-19 18:44:39,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:39,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-10-19 18:44:39,683 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 18:44:39,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-19 18:44:39,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-10-19 18:44:39,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:44:39,684 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-19 18:44:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-10-19 18:44:39,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-19 18:44:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 18:44:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-19 18:44:39,686 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-19 18:44:39,686 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-19 18:44:39,686 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:44:39,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-10-19 18:44:39,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:39,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:39,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:39,688 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:39,688 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:39,688 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 156#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 157#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 167#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 158#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 159#L553-2 [2020-10-19 18:44:39,688 INFO L796 eck$LassoCheckResult]: Loop: 159#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 169#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 172#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 171#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 170#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 159#L553-2 [2020-10-19 18:44:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:39,689 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2020-10-19 18:44:39,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:39,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544452718] [2020-10-19 18:44:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,702 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,716 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:39,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:39,716 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 2 times [2020-10-19 18:44:39,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:39,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941528268] [2020-10-19 18:44:39,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,734 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:39,734 INFO L82 PathProgramCache]: Analyzing trace with hash 705693312, now seen corresponding path program 1 times [2020-10-19 18:44:39,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:39,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024147148] [2020-10-19 18:44:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:39,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:39,775 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:40,109 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2020-10-19 18:44:40,115 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-10-19 18:44:40,118 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:44:40,127 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:44:40,131 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:44:42,880 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-10-19 18:44:42,889 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:44:42,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:44:42,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:44:42,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:44:42,889 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:44:42,890 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:42,890 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:44:42,890 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:44:42,890 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration3_Lasso [2020-10-19 18:44:42,890 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:44:42,890 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:44:42,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:42,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,059 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-10-19 18:44:43,623 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-19 18:44:43,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:44:43,971 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-19 18:44:44,417 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-10-19 18:44:44,577 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:44:44,577 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:44,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:44,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:44,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:44:44,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:44:44,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:44,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:44,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:44:44,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:44:44,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:44,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:44:44,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:44:44,615 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2020-10-19 18:44:44,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:44:44,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:44:44,623 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-10-19 18:44:44,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:44:44,636 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:44:44,651 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:44:44,651 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:44:44,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:44:44,671 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:44:44,671 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:44:44,671 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 + 255 Supporting invariants [] [2020-10-19 18:44:44,735 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 18:44:44,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:44:44,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:44,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:44:44,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:44,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:44:44,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:44:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:44,806 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 18:44:44,807 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-19 18:44:44,834 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 27 states and 32 transitions. Complement of second has 9 states. [2020-10-19 18:44:44,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-19 18:44:44,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 18:44:44,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-10-19 18:44:44,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2020-10-19 18:44:44,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:44,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2020-10-19 18:44:44,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:44,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2020-10-19 18:44:44,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:44:44,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2020-10-19 18:44:44,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:44,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2020-10-19 18:44:44,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-19 18:44:44,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-19 18:44:44,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2020-10-19 18:44:44,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:44:44,842 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-19 18:44:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2020-10-19 18:44:44,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-19 18:44:44,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-19 18:44:44,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-10-19 18:44:44,846 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-19 18:44:44,846 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-10-19 18:44:44,846 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:44:44,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2020-10-19 18:44:44,847 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-10-19 18:44:44,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:44:44,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:44:44,847 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-10-19 18:44:44,848 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:44:44,848 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 302#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 303#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 320#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 321#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 319#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 318#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 324#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 322#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 304#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~post8;havoc main_#t~mem7; 305#L553-2 [2020-10-19 18:44:44,848 INFO L796 eck$LassoCheckResult]: Loop: 305#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 308#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 309#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 313#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 314#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 305#L553-2 [2020-10-19 18:44:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:44,848 INFO L82 PathProgramCache]: Analyzing trace with hash 705693310, now seen corresponding path program 1 times [2020-10-19 18:44:44,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:44,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126920327] [2020-10-19 18:44:44,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:44:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:44:45,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126920327] [2020-10-19 18:44:45,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:44:45,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:44:45,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35527533] [2020-10-19 18:44:45,010 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:44:45,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:44:45,010 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 3 times [2020-10-19 18:44:45,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:44:45,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552913989] [2020-10-19 18:44:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:44:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:45,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:44:45,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:44:45,026 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:44:45,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:44:45,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:44:45,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:44:45,120 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-10-19 18:44:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:44:45,160 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-10-19 18:44:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:44:45,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2020-10-19 18:44:45,162 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:44:45,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2020-10-19 18:44:45,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:44:45,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:44:45,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:44:45,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:44:45,162 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:45,162 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:45,162 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:44:45,163 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:44:45,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:44:45,163 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:44:45,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:44:45,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:44:45 BoogieIcfgContainer [2020-10-19 18:44:45,169 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:44:45,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:44:45,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:44:45,170 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:44:45,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:44:36" (3/4) ... [2020-10-19 18:44:45,174 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:44:45,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:44:45,176 INFO L168 Benchmark]: Toolchain (without parser) took 9719.17 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 286.8 MB). Free memory was 960.0 MB in the beginning and 1.1 GB in the end (delta: -161.8 MB). Peak memory consumption was 125.0 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,176 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:45,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,178 INFO L168 Benchmark]: Boogie Preprocessor took 33.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,179 INFO L168 Benchmark]: RCFGBuilder took 317.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,180 INFO L168 Benchmark]: BuchiAutomizer took 8754.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.7 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:44:45,180 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:44:45,184 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 557.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 317.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8754.11 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 146.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -24.7 MB). Peak memory consumption was 121.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.44 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 8.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 61 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital494 mio100 ax106 hnf99 lsp379 ukn37 mio100 lsp73 div120 bol100 ite100 ukn100 eq163 hnf85 smp62 dnf175 smp81 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 59ms VariablesStem: 8 VariablesLoop: 4 DisjunctsStem: 3 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 10 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...