./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/ldv-memsafety/memleaks_test18_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb53649e57c73811eb036860baf1102917fa8259 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:27:03,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 20:27:03,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 20:27:03,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 20:27:03,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 20:27:03,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 20:27:03,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 20:27:03,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 20:27:03,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 20:27:03,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 20:27:03,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 20:27:03,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 20:27:03,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 20:27:03,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 20:27:03,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 20:27:03,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 20:27:03,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 20:27:03,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 20:27:03,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 20:27:03,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 20:27:03,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 20:27:03,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 20:27:03,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 20:27:03,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 20:27:03,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 20:27:03,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 20:27:03,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 20:27:03,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 20:27:03,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 20:27:03,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 20:27:03,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 20:27:04,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 20:27:04,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 20:27:04,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 20:27:04,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 20:27:04,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 20:27:04,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 20:27:04,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 20:27:04,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 20:27:04,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 20:27:04,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 20:27:04,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 20:27:04,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 20:27:04,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 20:27:04,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 20:27:04,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 20:27:04,064 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 20:27:04,065 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 20:27:04,065 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 20:27:04,065 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 20:27:04,065 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 20:27:04,066 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 20:27:04,066 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 20:27:04,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 20:27:04,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 20:27:04,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 20:27:04,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 20:27:04,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 20:27:04,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 20:27:04,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 20:27:04,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 20:27:04,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 20:27:04,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 20:27:04,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 20:27:04,072 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 20:27:04,073 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 20:27:04,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 20:27:04,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 20:27:04,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 20:27:04,075 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 20:27:04,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 20:27:04,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 20:27:04,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 20:27:04,076 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 20:27:04,077 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 20:27:04,078 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb53649e57c73811eb036860baf1102917fa8259 [2020-10-19 20:27:04,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 20:27:04,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 20:27:04,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 20:27:04,410 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 20:27:04,411 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 20:27:04,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-10-19 20:27:04,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0bf13ce/ee11ca55a0614be78f1af6e189b0f138/FLAG012728d98 [2020-10-19 20:27:05,014 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 20:27:05,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18_1.i [2020-10-19 20:27:05,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0bf13ce/ee11ca55a0614be78f1af6e189b0f138/FLAG012728d98 [2020-10-19 20:27:05,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f0bf13ce/ee11ca55a0614be78f1af6e189b0f138 [2020-10-19 20:27:05,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 20:27:05,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 20:27:05,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 20:27:05,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 20:27:05,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 20:27:05,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:27:05" (1/1) ... [2020-10-19 20:27:05,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4bfa31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:05, skipping insertion in model container [2020-10-19 20:27:05,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 08:27:05" (1/1) ... [2020-10-19 20:27:05,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 20:27:05,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 20:27:05,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:27:05,931 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 20:27:06,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 20:27:06,095 INFO L208 MainTranslator]: Completed translation [2020-10-19 20:27:06,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06 WrapperNode [2020-10-19 20:27:06,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 20:27:06,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 20:27:06,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 20:27:06,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 20:27:06,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 20:27:06,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 20:27:06,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 20:27:06,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 20:27:06,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (1/1) ... [2020-10-19 20:27:06,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 20:27:06,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 20:27:06,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 20:27:06,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 20:27:06,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (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 20:27:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 20:27:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 20:27:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 20:27:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 20:27:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 20:27:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-19 20:27:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 20:27:06,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 20:27:06,534 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 20:27:06,534 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-19 20:27:06,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:27:06 BoogieIcfgContainer [2020-10-19 20:27:06,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 20:27:06,538 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 20:27:06,538 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 20:27:06,542 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 20:27:06,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:27:06,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 08:27:05" (1/3) ... [2020-10-19 20:27:06,544 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34dfb8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:27:06, skipping insertion in model container [2020-10-19 20:27:06,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:27:06,545 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 08:27:06" (2/3) ... [2020-10-19 20:27:06,545 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34dfb8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 08:27:06, skipping insertion in model container [2020-10-19 20:27:06,546 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 20:27:06,546 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:27:06" (3/3) ... [2020-10-19 20:27:06,548 INFO L373 chiAutomizerObserver]: Analyzing ICFG memleaks_test18_1.i [2020-10-19 20:27:06,586 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 20:27:06,586 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 20:27:06,586 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 20:27:06,587 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 20:27:06,587 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 20:27:06,587 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 20:27:06,587 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 20:27:06,587 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 20:27:06,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 20:27:06,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 20:27:06,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:06,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:06,626 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:06,626 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:06,626 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 20:27:06,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-10-19 20:27:06,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 20:27:06,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:06,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:06,629 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:06,629 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:06,634 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 10#L-1true havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 4#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 16#L529true entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 11#L766true assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 14#L767-3true [2020-10-19 20:27:06,635 INFO L796 eck$LassoCheckResult]: Loop: 14#L767-3true assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 6#L526-1true assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 17#L529-1true entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 9#L769true assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 13#L767-2true entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 14#L767-3true [2020-10-19 20:27:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2020-10-19 20:27:06,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:06,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522265049] [2020-10-19 20:27:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:06,843 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 20:27:06,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522265049] [2020-10-19 20:27:06,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:27:06,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 20:27:06,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911965491] [2020-10-19 20:27:06,850 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:27:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash 49720347, now seen corresponding path program 1 times [2020-10-19 20:27:06,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:06,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420340371] [2020-10-19 20:27:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:06,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:06,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:06,918 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:07,112 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-19 20:27:07,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:27:07,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:27:07,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:27:07,241 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-10-19 20:27:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:27:07,303 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-10-19 20:27:07,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:27:07,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2020-10-19 20:27:07,308 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-10-19 20:27:07,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 20 states and 25 transitions. [2020-10-19 20:27:07,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-19 20:27:07,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-19 20:27:07,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2020-10-19 20:27:07,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:27:07,316 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-10-19 20:27:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2020-10-19 20:27:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2020-10-19 20:27:07,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 20:27:07,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-19 20:27:07,346 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 20:27:07,346 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 20:27:07,347 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 20:27:07,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-10-19 20:27:07,348 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-19 20:27:07,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:07,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:07,348 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:07,349 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 20:27:07,349 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 66#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 59#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 60#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 67#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 68#L767-3 [2020-10-19 20:27:07,349 INFO L796 eck$LassoCheckResult]: Loop: 68#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 62#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 63#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 64#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 65#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 68#L767-3 [2020-10-19 20:27:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash 28693831, now seen corresponding path program 1 times [2020-10-19 20:27:07,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:07,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459589684] [2020-10-19 20:27:07,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,367 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,384 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,389 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:07,390 INFO L82 PathProgramCache]: Analyzing trace with hash 49720347, now seen corresponding path program 2 times [2020-10-19 20:27:07,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:07,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598344680] [2020-10-19 20:27:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,424 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:07,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1173278059, now seen corresponding path program 1 times [2020-10-19 20:27:07,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:07,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662251117] [2020-10-19 20:27:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:07,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:07,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:07,718 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-19 20:27:07,992 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-19 20:27:08,092 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:27:08,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:27:08,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:27:08,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:27:08,094 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:27:08,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:08,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:27:08,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:27:08,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18_1.i_Iteration2_Lasso [2020-10-19 20:27:08,096 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:27:08,096 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:27:08,125 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 20:27:08,138 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 20:27:08,142 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 20:27:08,148 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 20:27:08,151 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 20:27:08,155 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 20:27:08,158 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 20:27:08,160 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 20:27:08,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:27:08,166 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 20:27:08,395 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-19 20:27:08,481 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 20:27:08,484 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 20:27:08,487 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 20:27:08,490 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 20:27:08,493 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 20:27:08,496 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 20:27:08,499 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 20:27:08,502 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 20:27:09,046 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-10-19 20:27:09,136 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:27:09,142 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,154 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 20:27:09,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:09,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:09,167 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 20:27:09,196 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 20:27:09,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:09,201 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 20:27:09,230 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 20:27:09,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:09,241 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 20:27:09,274 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 20:27:09,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:09,280 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 20:27:09,303 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 20:27:09,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:09,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:09,319 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) [2020-10-19 20:27:09,367 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:09,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:09,413 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 20:27:09,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,418 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 20:27:09,444 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 20:27:09,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:09,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,447 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:09,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:09,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:27:09,476 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 20:27:09,477 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,478 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:09,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:09,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:09,538 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 20:27:09,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:09,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,618 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 20:27:09,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:09,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:09,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:09,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:09,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:09,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:09,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:27:09,696 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-19 20:27:09,696 INFO L444 ModelExtractionUtils]: 9 out of 34 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:09,708 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:09,717 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:27:09,717 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:27:09,718 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~i~0, ULTIMATE.start_entry_point_~len~0) = -1*ULTIMATE.start_entry_point_~i~0 + 1*ULTIMATE.start_entry_point_~len~0 Supporting invariants [] [2020-10-19 20:27:09,764 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2020-10-19 20:27:09,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:09,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:27:09,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:27:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:09,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:27:09,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:27:09,849 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 20:27:09,852 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:27:09,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-19 20:27:09,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 27 states and 36 transitions. Complement of second has 6 states. [2020-10-19 20:27:09,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 20:27:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:27:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-19 20:27:09,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 5 letters. [2020-10-19 20:27:09,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:09,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 5 letters. [2020-10-19 20:27:09,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:09,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 10 letters. [2020-10-19 20:27:09,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:09,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2020-10-19 20:27:09,916 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:27:09,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 20 states and 26 transitions. [2020-10-19 20:27:09,917 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-19 20:27:09,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-19 20:27:09,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2020-10-19 20:27:09,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:27:09,918 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-10-19 20:27:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2020-10-19 20:27:09,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-10-19 20:27:09,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 20:27:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-10-19 20:27:09,922 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-19 20:27:09,922 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-19 20:27:09,922 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 20:27:09,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-10-19 20:27:09,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:09,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:09,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:09,924 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:27:09,924 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:27:09,925 INFO L794 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 182#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 172#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 173#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 183#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 184#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 170#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 171#L773-3 [2020-10-19 20:27:09,925 INFO L796 eck$LassoCheckResult]: Loop: 171#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 174#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 171#L773-3 [2020-10-19 20:27:09,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:09,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1804968475, now seen corresponding path program 1 times [2020-10-19 20:27:09,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:09,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690460812] [2020-10-19 20:27:09,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:09,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:27:09,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690460812] [2020-10-19 20:27:09,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:27:09,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:27:09,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145579232] [2020-10-19 20:27:09,999 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:27:10,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,000 INFO L82 PathProgramCache]: Analyzing trace with hash 2499, now seen corresponding path program 1 times [2020-10-19 20:27:10,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648009346] [2020-10-19 20:27:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,022 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:27:10,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:27:10,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:27:10,063 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-19 20:27:10,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:27:10,086 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-10-19 20:27:10,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:27:10,087 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-10-19 20:27:10,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:27:10,089 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2020-10-19 20:27:10,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-19 20:27:10,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-19 20:27:10,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2020-10-19 20:27:10,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:27:10,090 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-19 20:27:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2020-10-19 20:27:10,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-10-19 20:27:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 20:27:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-10-19 20:27:10,092 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 20:27:10,092 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-19 20:27:10,092 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 20:27:10,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-10-19 20:27:10,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:10,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:10,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:10,093 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:27:10,094 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:27:10,094 INFO L794 eck$LassoCheckResult]: Stem: 236#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 233#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 223#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 224#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 234#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 235#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 226#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 227#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 230#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 221#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 222#L773-3 [2020-10-19 20:27:10,094 INFO L796 eck$LassoCheckResult]: Loop: 222#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 225#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 222#L773-3 [2020-10-19 20:27:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1173218535, now seen corresponding path program 1 times [2020-10-19 20:27:10,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551546673] [2020-10-19 20:27:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,116 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,120 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 2499, now seen corresponding path program 2 times [2020-10-19 20:27:10,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221177641] [2020-10-19 20:27:10,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,128 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2113388251, now seen corresponding path program 1 times [2020-10-19 20:27:10,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344190622] [2020-10-19 20:27:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:10,157 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 20:27:10,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344190622] [2020-10-19 20:27:10,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:27:10,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:27:10,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253764686] [2020-10-19 20:27:10,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:27:10,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:27:10,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:27:10,191 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-19 20:27:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:27:10,223 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2020-10-19 20:27:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 20:27:10,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2020-10-19 20:27:10,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:10,225 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2020-10-19 20:27:10,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 20:27:10,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 20:27:10,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2020-10-19 20:27:10,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:27:10,226 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-10-19 20:27:10,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2020-10-19 20:27:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-10-19 20:27:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 20:27:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-10-19 20:27:10,228 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-19 20:27:10,228 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-19 20:27:10,229 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 20:27:10,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2020-10-19 20:27:10,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:10,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:10,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:10,230 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:27:10,230 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:27:10,230 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 287#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 277#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 278#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 288#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 289#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 282#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 283#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 285#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 286#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 291#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 275#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 276#L773-3 [2020-10-19 20:27:10,230 INFO L796 eck$LassoCheckResult]: Loop: 276#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 279#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 276#L773-3 [2020-10-19 20:27:10,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2113443111, now seen corresponding path program 1 times [2020-10-19 20:27:10,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879530276] [2020-10-19 20:27:10,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:27:10,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879530276] [2020-10-19 20:27:10,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 20:27:10,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 20:27:10,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862571412] [2020-10-19 20:27:10,264 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:27:10,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash 2499, now seen corresponding path program 3 times [2020-10-19 20:27:10,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310077921] [2020-10-19 20:27:10,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,272 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:27:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 20:27:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 20:27:10,303 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 20:27:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:27:10,333 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-10-19 20:27:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:27:10,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2020-10-19 20:27:10,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 20:27:10,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 28 transitions. [2020-10-19 20:27:10,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-19 20:27:10,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-19 20:27:10,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-10-19 20:27:10,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:27:10,336 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-19 20:27:10,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-10-19 20:27:10,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-10-19 20:27:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 20:27:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-19 20:27:10,338 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-19 20:27:10,338 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-19 20:27:10,339 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 20:27:10,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-10-19 20:27:10,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:10,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:10,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:10,340 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:27:10,340 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:27:10,340 INFO L794 eck$LassoCheckResult]: Stem: 343#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 340#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 330#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 331#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 341#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 342#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 335#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 336#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 338#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 339#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 344#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 328#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 329#L773-3 [2020-10-19 20:27:10,340 INFO L796 eck$LassoCheckResult]: Loop: 329#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 332#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 329#L773-3 [2020-10-19 20:27:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,341 INFO L82 PathProgramCache]: Analyzing trace with hash 2056184809, now seen corresponding path program 1 times [2020-10-19 20:27:10,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493935078] [2020-10-19 20:27:10,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:27:10,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493935078] [2020-10-19 20:27:10,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583538691] [2020-10-19 20:27:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 20:27:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:10,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:27:10,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:27:10,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 20:27:10,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 20:27:10,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-19 20:27:10,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004032370] [2020-10-19 20:27:10,485 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 20:27:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,485 INFO L82 PathProgramCache]: Analyzing trace with hash 2499, now seen corresponding path program 4 times [2020-10-19 20:27:10,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202828216] [2020-10-19 20:27:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,493 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 20:27:10,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 20:27:10,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-19 20:27:10,520 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 7 states. [2020-10-19 20:27:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 20:27:10,548 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-19 20:27:10,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 20:27:10,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-10-19 20:27:10,550 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 20:27:10,550 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 37 transitions. [2020-10-19 20:27:10,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-19 20:27:10,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-19 20:27:10,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 37 transitions. [2020-10-19 20:27:10,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 20:27:10,551 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-10-19 20:27:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 37 transitions. [2020-10-19 20:27:10,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2020-10-19 20:27:10,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-19 20:27:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-19 20:27:10,554 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-19 20:27:10,554 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-19 20:27:10,555 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 20:27:10,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 26 transitions. [2020-10-19 20:27:10,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 20:27:10,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 20:27:10,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 20:27:10,556 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 20:27:10,557 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 20:27:10,557 INFO L794 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, 4);call write~init~$Pointer$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 432#L-1 havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 422#L526 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 423#L529 entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 433#L766 assume !(entry_point_~array~0.base == 0 && entry_point_~array~0.offset == 0); 434#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 437#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 438#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 430#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 431#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 436#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 425#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 426#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 429#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 420#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 421#L773-3 [2020-10-19 20:27:10,557 INFO L796 eck$LassoCheckResult]: Loop: 421#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 424#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 421#L773-3 [2020-10-19 20:27:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,558 INFO L82 PathProgramCache]: Analyzing trace with hash 979558027, now seen corresponding path program 1 times [2020-10-19 20:27:10,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920697712] [2020-10-19 20:27:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,591 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash 2499, now seen corresponding path program 5 times [2020-10-19 20:27:10,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255866820] [2020-10-19 20:27:10,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,599 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:10,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:10,600 INFO L82 PathProgramCache]: Analyzing trace with hash 757427661, now seen corresponding path program 1 times [2020-10-19 20:27:10,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 20:27:10,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68752708] [2020-10-19 20:27:10,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 20:27:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 20:27:10,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 20:27:10,638 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 20:27:11,267 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 144 [2020-10-19 20:27:11,425 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-19 20:27:11,428 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 20:27:11,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 20:27:11,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 20:27:11,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 20:27:11,429 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 20:27:11,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:11,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 20:27:11,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 20:27:11,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18_1.i_Iteration7_Lasso [2020-10-19 20:27:11,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 20:27:11,429 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 20:27:11,434 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 20:27:11,444 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 20:27:11,447 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 20:27:11,449 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 20:27:11,451 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 20:27:11,454 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 20:27:11,457 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 20:27:11,460 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 20:27:11,462 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 20:27:11,465 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 20:27:11,467 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 20:27:11,469 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 20:27:11,472 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 20:27:11,475 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 20:27:11,478 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 20:27:11,480 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 20:27:11,482 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 20:27:11,485 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 20:27:11,488 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 20:27:11,491 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 20:27:11,493 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 20:27:11,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 20:27:11,764 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 20:27:12,223 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2020-10-19 20:27:12,272 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 20:27:12,272 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 20:27:12,280 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 20:27:12,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:12,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:27:12,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,372 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 20:27:12,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,376 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 20:27:12,400 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 20:27:12,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,429 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 20:27:12,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,459 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 20:27:12,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,490 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 20:27:12,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,499 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 20:27:12,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,556 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 20:27:12,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,582 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 20:27:12,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,621 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 20:27:12,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,623 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,647 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 20:27:12,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,657 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:12,698 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 20:27:12,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,737 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 20:27:12,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,766 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 20:27:12,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,793 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 20:27:12,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,817 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 20:27:12,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,845 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 20:27:12,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,847 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,847 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,875 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 20:27:12,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:12,882 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,907 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 20:27:12,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,911 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,934 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 20:27:12,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,963 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 20:27:12,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 20:27:12,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 20:27:12,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 20:27:12,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:12,991 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 20:27:12,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 20:27:12,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 20:27:12,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 20:27:12,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 20:27:12,997 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 20:27:12,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 20:27:13,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 20:27:13,045 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-10-19 20:27:13,046 INFO L444 ModelExtractionUtils]: 3 out of 22 variables were initially zero. Simplification set additionally 16 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 20:27:13,054 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 20:27:13,057 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 20:27:13,057 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 20:27:13,057 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~j~0) = 2*ULTIMATE.start_entry_point_~j~0 + 1 Supporting invariants [] [2020-10-19 20:27:13,099 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-19 20:27:13,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 20:27:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:13,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 20:27:13,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:27:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 20:27:13,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 20:27:13,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 20:27:13,149 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 20:27:13,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 20:27:13,150 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-10-19 20:27:13,158 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 24 states and 29 transitions. Complement of second has 4 states. [2020-10-19 20:27:13,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 20:27:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 20:27:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-10-19 20:27:13,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-19 20:27:13,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:13,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-19 20:27:13,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:13,160 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-19 20:27:13,160 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 20:27:13,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-10-19 20:27:13,161 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:27:13,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-10-19 20:27:13,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 20:27:13,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 20:27:13,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 20:27:13,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 20:27:13,161 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:27:13,162 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:27:13,162 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 20:27:13,162 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 20:27:13,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 20:27:13,162 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 20:27:13,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 20:27:13,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 08:27:13 BoogieIcfgContainer [2020-10-19 20:27:13,169 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 20:27:13,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 20:27:13,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 20:27:13,170 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 20:27:13,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 08:27:06" (3/4) ... [2020-10-19 20:27:13,174 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 20:27:13,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 20:27:13,175 INFO L168 Benchmark]: Toolchain (without parser) took 7880.76 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 308.3 MB). Free memory was 947.9 MB in the beginning and 1.0 GB in the end (delta: -72.4 MB). Peak memory consumption was 235.9 MB. Max. memory is 11.5 GB. [2020-10-19 20:27:13,176 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:27:13,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2020-10-19 20:27:13,177 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-10-19 20:27:13,177 INFO L168 Benchmark]: Boogie Preprocessor took 28.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:27:13,178 INFO L168 Benchmark]: RCFGBuilder took 355.23 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2020-10-19 20:27:13,179 INFO L168 Benchmark]: BuchiAutomizer took 6630.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.4 MB). Peak memory consumption was 232.3 MB. Max. memory is 11.5 GB. [2020-10-19 20:27:13,179 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 20:27:13,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 795.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 355.23 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: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6630.94 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 158.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.4 MB). Peak memory consumption was 232.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.33 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (5 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + len and consists of 4 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 113 SDtfs, 146 SDslu, 108 SDs, 0 SdLazy, 92 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU4 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital256 mio100 ax111 hnf101 lsp83 ukn55 mio100 lsp52 div100 bol100 ite100 ukn100 eq188 hnf89 smp100 dnf119 smp90 tf100 neg95 sie122 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...