./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18.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 c99147d7fc15b82aae203d59dfd3004b20a3ac70 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 08:19:37,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 08:19:37,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 08:19:37,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 08:19:37,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 08:19:37,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 08:19:37,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 08:19:37,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 08:19:37,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 08:19:37,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 08:19:37,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 08:19:37,808 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 08:19:37,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 08:19:37,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 08:19:37,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 08:19:37,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 08:19:37,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 08:19:37,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 08:19:37,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 08:19:37,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 08:19:37,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 08:19:37,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 08:19:37,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 08:19:37,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 08:19:37,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 08:19:37,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 08:19:37,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 08:19:37,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 08:19:37,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 08:19:37,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 08:19:37,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 08:19:37,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 08:19:37,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 08:19:37,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 08:19:37,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 08:19:37,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 08:19:37,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 08:19:37,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 08:19:37,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 08:19:37,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 08:19:37,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 08:19:37,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-20 08:19:37,904 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 08:19:37,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 08:19:37,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 08:19:37,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 08:19:37,907 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 08:19:37,908 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 08:19:37,908 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 08:19:37,908 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 08:19:37,908 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 08:19:37,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 08:19:37,910 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 08:19:37,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 08:19:37,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 08:19:37,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 08:19:37,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 08:19:37,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 08:19:37,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 08:19:37,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 08:19:37,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 08:19:37,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 08:19:37,915 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 08:19:37,916 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 08:19:37,916 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 08:19:37,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 08:19:37,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 08:19:37,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 08:19:37,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 08:19:37,919 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 08:19:37,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 08:19:37,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 08:19:37,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 08:19:37,920 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 08:19:37,921 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 08:19:37,922 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 -> c99147d7fc15b82aae203d59dfd3004b20a3ac70 [2020-10-20 08:19:38,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 08:19:38,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 08:19:38,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 08:19:38,137 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 08:19:38,137 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 08:19:38,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2020-10-20 08:19:38,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0964dd18/51c57f867f2c490d9b99fbab05f77b10/FLAG0b2a15f32 [2020-10-20 08:19:38,807 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 08:19:38,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2020-10-20 08:19:38,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0964dd18/51c57f867f2c490d9b99fbab05f77b10/FLAG0b2a15f32 [2020-10-20 08:19:39,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0964dd18/51c57f867f2c490d9b99fbab05f77b10 [2020-10-20 08:19:39,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 08:19:39,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 08:19:39,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 08:19:39,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 08:19:39,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 08:19:39,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c2f4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39, skipping insertion in model container [2020-10-20 08:19:39,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 08:19:39,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 08:19:39,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:19:39,535 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 08:19:39,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 08:19:39,705 INFO L208 MainTranslator]: Completed translation [2020-10-20 08:19:39,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39 WrapperNode [2020-10-20 08:19:39,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 08:19:39,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 08:19:39,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 08:19:39,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 08:19:39,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 08:19:39,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 08:19:39,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 08:19:39,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 08:19:39,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... [2020-10-20 08:19:39,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 08:19:39,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 08:19:39,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 08:19:39,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 08:19:39,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 08:19:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 08:19:39,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 08:19:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 08:19:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 08:19:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-20 08:19:39,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 08:19:39,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 08:19:40,111 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 08:19:40,111 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-20 08:19:40,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:19:40 BoogieIcfgContainer [2020-10-20 08:19:40,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 08:19:40,113 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 08:19:40,114 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 08:19:40,117 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 08:19:40,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:19:40,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 08:19:39" (1/3) ... [2020-10-20 08:19:40,119 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bea5a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:19:40, skipping insertion in model container [2020-10-20 08:19:40,119 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:19:40,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 08:19:39" (2/3) ... [2020-10-20 08:19:40,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bea5a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 08:19:40, skipping insertion in model container [2020-10-20 08:19:40,120 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 08:19:40,120 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:19:40" (3/3) ... [2020-10-20 08:19:40,122 INFO L373 chiAutomizerObserver]: Analyzing ICFG memleaks_test18.i [2020-10-20 08:19:40,200 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 08:19:40,200 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 08:19:40,200 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 08:19:40,201 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 08:19:40,201 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 08:19:40,202 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 08:19:40,202 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 08:19:40,202 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 08:19:40,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 08:19:40,254 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-20 08:19:40,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:40,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:40,261 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:40,262 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:40,262 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 08:19:40,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-20 08:19:40,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-20 08:19:40,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:40,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:40,274 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:40,274 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:40,279 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$(~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset, ~#ldv_global_msg_list~0.base, 4 + ~#ldv_global_msg_list~0.offset, 4); 11#L-1true havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset, entry_point_#t~ret40.base, entry_point_#t~ret40.offset, entry_point_#t~post39, entry_point_#t~mem42.base, entry_point_#t~mem42.offset, entry_point_#t~post41, entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;entry_point_~len~0 := 10;ldv_malloc_#in~size := 4 * entry_point_~len~0;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 5#L526true assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 16#L529true entry_point_#t~ret38.base, entry_point_#t~ret38.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~array~0.base, entry_point_~array~0.offset := entry_point_#t~ret38.base, entry_point_#t~ret38.offset;havoc entry_point_#t~ret38.base, entry_point_#t~ret38.offset; 17#L763true assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 14#L767-3true [2020-10-20 08:19:40,279 INFO L796 eck$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; 7#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; 18#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; 10#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 [2020-10-20 08:19:40,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:40,284 INFO L82 PathProgramCache]: Analyzing trace with hash 28695751, now seen corresponding path program 1 times [2020-10-20 08:19:40,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:40,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108902433] [2020-10-20 08:19:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:40,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108902433] [2020-10-20 08:19:40,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:19:40,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 08:19:40,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471447935] [2020-10-20 08:19:40,488 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:19:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:40,489 INFO L82 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 1 times [2020-10-20 08:19:40,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:40,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404614882] [2020-10-20 08:19:40,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:40,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:40,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:40,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:40,775 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-20 08:19:40,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:40,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:19:40,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:19:40,912 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-10-20 08:19:40,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:40,981 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-20 08:19:40,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:19:40,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-10-20 08:19:40,986 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-10-20 08:19:40,990 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 20 states and 25 transitions. [2020-10-20 08:19:40,992 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-20 08:19:40,992 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-20 08:19:40,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2020-10-20 08:19:40,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:19:40,993 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-10-20 08:19:41,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2020-10-20 08:19:41,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2020-10-20 08:19:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 08:19:41,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 08:19:41,023 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 08:19:41,023 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 08:19:41,023 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 08:19:41,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-10-20 08:19:41,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-10-20 08:19:41,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:41,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:41,025 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:41,026 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-20 08:19:41,026 INFO L794 eck$LassoCheckResult]: Stem: 70#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); 69#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 62#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; 63#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; 72#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 71#L767-3 [2020-10-20 08:19:41,026 INFO L796 eck$LassoCheckResult]: Loop: 71#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 65#L526-1 assume 0 != ldv_malloc_#t~nondet11;havoc ldv_malloc_#t~nondet11;call ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset := #Ultimate.allocOnHeap(ldv_malloc_~size);ldv_malloc_#res.base, ldv_malloc_#res.offset := ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset; 66#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 67#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$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); 68#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 71#L767-3 [2020-10-20 08:19:41,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:41,027 INFO L82 PathProgramCache]: Analyzing trace with hash 28693829, now seen corresponding path program 1 times [2020-10-20 08:19:41,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:41,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183920172] [2020-10-20 08:19:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,079 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:41,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:41,080 INFO L82 PathProgramCache]: Analyzing trace with hash 47811737, now seen corresponding path program 2 times [2020-10-20 08:19:41,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:41,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952193307] [2020-10-20 08:19:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,114 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,120 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:41,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:41,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1232444971, now seen corresponding path program 1 times [2020-10-20 08:19:41,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:41,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863390668] [2020-10-20 08:19:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,171 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:41,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:41,226 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:41,389 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2020-10-20 08:19:41,639 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-20 08:19:41,739 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:19:41,747 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:19:41,747 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:19:41,747 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:19:41,748 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:19:41,748 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:41,748 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:19:41,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:19:41,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration2_Lasso [2020-10-20 08:19:41,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:19:41,749 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:19:41,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:41,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,075 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-20 08:19:42,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:42,644 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2020-10-20 08:19:42,850 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:19:42,855 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 [2020-10-20 08:19:42,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:42,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:42,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:42,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:42,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:42,872 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:42,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:42,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:42,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:42,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:42,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:42,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:42,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:42,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:42,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:42,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:42,928 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 [2020-10-20 08:19:42,954 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:42,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:42,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:42,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:42,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:42,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:42,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:42,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:42,967 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:43,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:43,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:43,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:43,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:43,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:43,279 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,335 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:43,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:43,442 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) [2020-10-20 08:19:43,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:43,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:43,486 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 [2020-10-20 08:19:43,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,522 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 [2020-10-20 08:19:43,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,523 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-20 08:19:43,524 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-20 08:19:43,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,546 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2020-10-20 08:19:43,546 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-20 08:19:43,583 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) [2020-10-20 08:19:43,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:43,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:43,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:43,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:43,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:43,647 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:43,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:19:43,718 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-20 08:19:43,718 INFO L444 ModelExtractionUtils]: 18 out of 43 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:43,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 08:19:43,747 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-20 08:19:43,747 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:19:43,748 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_entry_point_~i~0) = -2*ULTIMATE.start_entry_point_~i~0 + 19 Supporting invariants [-1*ULTIMATE.start_entry_point_~len~0 + 10 >= 0] [2020-10-20 08:19:43,806 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:19:43,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:43,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 08:19:43,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:43,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 08:19:43,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:43,999 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-10-20 08:19:44,001 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-20 08:19:44,081 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 27 states and 36 transitions. Complement of second has 7 states. [2020-10-20 08:19:44,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 08:19:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-20 08:19:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2020-10-20 08:19:44,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 5 letters. [2020-10-20 08:19:44,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:44,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 10 letters. Loop has 5 letters. [2020-10-20 08:19:44,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:44,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 10 letters. [2020-10-20 08:19:44,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:44,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2020-10-20 08:19:44,098 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:19:44,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 20 states and 26 transitions. [2020-10-20 08:19:44,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-20 08:19:44,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-20 08:19:44,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2020-10-20 08:19:44,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:19:44,102 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2020-10-20 08:19:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2020-10-20 08:19:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-10-20 08:19:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 08:19:44,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-10-20 08:19:44,107 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-20 08:19:44,107 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-20 08:19:44,107 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 08:19:44,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-10-20 08:19:44,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:44,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:44,111 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:44,112 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:44,112 INFO L794 eck$LassoCheckResult]: Stem: 197#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); 196#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 186#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; 187#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; 200#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 199#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 184#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 185#L773-3 [2020-10-20 08:19:44,112 INFO L796 eck$LassoCheckResult]: Loop: 185#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$Pointer$(entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~j~0, 4);call ULTIMATE.dealloc(entry_point_#t~mem42.base, entry_point_#t~mem42.offset);havoc entry_point_#t~mem42.base, entry_point_#t~mem42.offset; 188#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 185#L773-3 [2020-10-20 08:19:44,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966489, now seen corresponding path program 1 times [2020-10-20 08:19:44,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182661204] [2020-10-20 08:19:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:44,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182661204] [2020-10-20 08:19:44,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:19:44,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:19:44,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143170654] [2020-10-20 08:19:44,186 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:19:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 1 times [2020-10-20 08:19:44,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971265557] [2020-10-20 08:19:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,213 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:44,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:19:44,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:19:44,255 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-20 08:19:44,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:44,278 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2020-10-20 08:19:44,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:19:44,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-10-20 08:19:44,280 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:19:44,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 34 transitions. [2020-10-20 08:19:44,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-20 08:19:44,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-20 08:19:44,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2020-10-20 08:19:44,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:19:44,284 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-10-20 08:19:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2020-10-20 08:19:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2020-10-20 08:19:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 08:19:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-10-20 08:19:44,288 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-20 08:19:44,288 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-10-20 08:19:44,288 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-20 08:19:44,288 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-10-20 08:19:44,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:44,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:44,290 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:44,291 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:44,291 INFO L794 eck$LassoCheckResult]: Stem: 248#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 247#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 237#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; 238#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; 251#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 250#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; 240#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 241#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; 244#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 235#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 236#L773-3 [2020-10-20 08:19:44,291 INFO L796 eck$LassoCheckResult]: Loop: 236#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; 239#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 236#L773-3 [2020-10-20 08:19:44,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1232385447, now seen corresponding path program 1 times [2020-10-20 08:19:44,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146429145] [2020-10-20 08:19:44,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,321 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,325 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 2 times [2020-10-20 08:19:44,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709909474] [2020-10-20 08:19:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1088560603, now seen corresponding path program 1 times [2020-10-20 08:19:44,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180329625] [2020-10-20 08:19:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:44,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180329625] [2020-10-20 08:19:44,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:19:44,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:19:44,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340147336] [2020-10-20 08:19:44,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:44,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:19:44,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:19:44,410 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-20 08:19:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:44,441 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2020-10-20 08:19:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 08:19:44,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2020-10-20 08:19:44,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 21 states and 26 transitions. [2020-10-20 08:19:44,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-20 08:19:44,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-20 08:19:44,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2020-10-20 08:19:44,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:19:44,445 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-10-20 08:19:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2020-10-20 08:19:44,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-10-20 08:19:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 08:19:44,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-10-20 08:19:44,447 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-20 08:19:44,448 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-10-20 08:19:44,448 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-20 08:19:44,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2020-10-20 08:19:44,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:44,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:44,450 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:44,450 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:44,450 INFO L794 eck$LassoCheckResult]: Stem: 302#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 301#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 291#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; 292#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; 305#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 304#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; 296#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 297#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; 299#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 300#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 303#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 289#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 290#L773-3 [2020-10-20 08:19:44,450 INFO L796 eck$LassoCheckResult]: Loop: 290#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; 293#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 290#L773-3 [2020-10-20 08:19:44,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1088615463, now seen corresponding path program 1 times [2020-10-20 08:19:44,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505045265] [2020-10-20 08:19:44,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:44,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505045265] [2020-10-20 08:19:44,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 08:19:44,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 08:19:44,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072109588] [2020-10-20 08:19:44,484 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:19:44,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 3 times [2020-10-20 08:19:44,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695424673] [2020-10-20 08:19:44,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:44,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 08:19:44,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 08:19:44,521 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-20 08:19:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:44,551 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2020-10-20 08:19:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:19:44,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 30 transitions. [2020-10-20 08:19:44,552 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-20 08:19:44,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 28 transitions. [2020-10-20 08:19:44,553 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-10-20 08:19:44,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-20 08:19:44,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2020-10-20 08:19:44,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:19:44,554 INFO L691 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-20 08:19:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2020-10-20 08:19:44,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2020-10-20 08:19:44,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 08:19:44,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-20 08:19:44,556 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-20 08:19:44,556 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-20 08:19:44,557 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-20 08:19:44,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-10-20 08:19:44,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:44,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:44,558 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:44,559 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:44,559 INFO L794 eck$LassoCheckResult]: Stem: 355#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); 354#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 344#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; 345#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; 358#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 357#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; 349#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; 350#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; 352#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); 353#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 356#L767-3 assume !(entry_point_~i~0 < entry_point_~len~0); 342#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 343#L773-3 [2020-10-20 08:19:44,559 INFO L796 eck$LassoCheckResult]: Loop: 343#L773-3 assume !!(entry_point_~j~0 >= 0);call entry_point_#t~mem42.base, entry_point_#t~mem42.offset := read~$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; 346#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 343#L773-3 [2020-10-20 08:19:44,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1031357161, now seen corresponding path program 1 times [2020-10-20 08:19:44,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011888601] [2020-10-20 08:19:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:44,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011888601] [2020-10-20 08:19:44,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409077921] [2020-10-20 08:19:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 08:19:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:44,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 08:19:44,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:44,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:44,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 08:19:44,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-20 08:19:44,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398957057] [2020-10-20 08:19:44,690 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-20 08:19:44,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,690 INFO L82 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 4 times [2020-10-20 08:19:44,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955853004] [2020-10-20 08:19:44,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,698 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 08:19:44,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 08:19:44,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-20 08:19:44,734 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 7 states. [2020-10-20 08:19:44,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 08:19:44,767 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2020-10-20 08:19:44,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 08:19:44,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2020-10-20 08:19:44,769 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-20 08:19:44,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 37 transitions. [2020-10-20 08:19:44,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-20 08:19:44,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-20 08:19:44,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 37 transitions. [2020-10-20 08:19:44,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 08:19:44,770 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-10-20 08:19:44,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 37 transitions. [2020-10-20 08:19:44,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2020-10-20 08:19:44,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 08:19:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-20 08:19:44,773 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-20 08:19:44,773 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-20 08:19:44,773 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-20 08:19:44,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 26 transitions. [2020-10-20 08:19:44,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-20 08:19:44,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 08:19:44,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 08:19:44,774 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 08:19:44,774 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-20 08:19:44,774 INFO L794 eck$LassoCheckResult]: Stem: 447#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call ~#ldv_global_msg_list~0.base, ~#ldv_global_msg_list~0.offset := #Ultimate.allocOnStack(8);call write~init~$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); 446#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_~p~0.base, entry_point_~p~0.offset, entry_point_~i~0, entry_point_~j~0, entry_point_~len~0, entry_point_~array~0.base, entry_point_~array~0.offset;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; 436#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; 437#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; 451#L763 assume entry_point_~array~0.base != 0 || entry_point_~array~0.offset != 0;havoc entry_point_~p~0.base, entry_point_~p~0.offset;entry_point_~i~0 := 0;havoc entry_point_~j~0; 449#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; 441#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; 442#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; 444#L769 assume !(entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0);call write~$Pointer$(entry_point_~p~0.base, entry_point_~p~0.offset, entry_point_~array~0.base, entry_point_~array~0.offset + 4 * entry_point_~i~0, 4); 445#L767-2 entry_point_#t~post39 := entry_point_~i~0;entry_point_~i~0 := 1 + entry_point_#t~post39;havoc entry_point_#t~post39; 448#L767-3 assume !!(entry_point_~i~0 < entry_point_~len~0);ldv_malloc_#in~size := 4;havoc ldv_malloc_#res.base, ldv_malloc_#res.offset;havoc ldv_malloc_#t~nondet11, ldv_malloc_#t~malloc12.base, ldv_malloc_#t~malloc12.offset, ldv_malloc_~size;ldv_malloc_~size := ldv_malloc_#in~size; 439#L526-1 assume !(0 != ldv_malloc_#t~nondet11);havoc ldv_malloc_#t~nondet11;ldv_malloc_#res.base, ldv_malloc_#res.offset := 0, 0; 440#L529-1 entry_point_#t~ret40.base, entry_point_#t~ret40.offset := ldv_malloc_#res.base, ldv_malloc_#res.offset;entry_point_~p~0.base, entry_point_~p~0.offset := entry_point_#t~ret40.base, entry_point_#t~ret40.offset;havoc entry_point_#t~ret40.base, entry_point_#t~ret40.offset; 443#L769 assume entry_point_~p~0.base == 0 && entry_point_~p~0.offset == 0; 434#L772 entry_point_~j~0 := entry_point_~i~0 - 1; 435#L773-3 [2020-10-20 08:19:44,775 INFO L796 eck$LassoCheckResult]: Loop: 435#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; 438#L773-2 entry_point_#t~post41 := entry_point_~j~0;entry_point_~j~0 := entry_point_#t~post41 - 1;havoc entry_point_#t~post41; 435#L773-3 [2020-10-20 08:19:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1033365559, now seen corresponding path program 1 times [2020-10-20 08:19:44,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835862817] [2020-10-20 08:19:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,803 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,803 INFO L82 PathProgramCache]: Analyzing trace with hash 2435, now seen corresponding path program 5 times [2020-10-20 08:19:44,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480707843] [2020-10-20 08:19:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,810 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:44,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash -926855349, now seen corresponding path program 1 times [2020-10-20 08:19:44,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 08:19:44,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183020254] [2020-10-20 08:19:44,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 08:19:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 08:19:44,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 08:19:44,842 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 08:19:45,451 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 144 [2020-10-20 08:19:45,617 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-20 08:19:45,623 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 08:19:45,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 08:19:45,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 08:19:45,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 08:19:45,624 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 08:19:45,624 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:45,624 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 08:19:45,624 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 08:19:45,624 INFO L133 ssoRankerPreferences]: Filename of dumped script: memleaks_test18.i_Iteration7_Lasso [2020-10-20 08:19:45,624 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 08:19:45,624 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 08:19:45,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,869 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-10-20 08:19:45,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:45,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 08:19:46,350 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2020-10-20 08:19:46,462 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 08:19:46,462 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-20 08:19:46,475 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:46,484 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 [2020-10-20 08:19:46,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,510 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 [2020-10-20 08:19:46,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,539 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 [2020-10-20 08:19:46,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:46,569 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 [2020-10-20 08:19:46,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:46,598 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 [2020-10-20 08:19:46,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:46,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:46,666 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 [2020-10-20 08:19:46,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,700 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 [2020-10-20 08:19:46,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,726 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 [2020-10-20 08:19:46,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,752 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 [2020-10-20 08:19:46,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,781 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 [2020-10-20 08:19:46,803 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:46,819 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) [2020-10-20 08:19:46,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:46,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:46,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:46,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:46,904 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 [2020-10-20 08:19:46,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,938 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 [2020-10-20 08:19:46,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:46,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:46,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:46,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:46,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:46,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:46,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:46,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:46,965 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 [2020-10-20 08:19:47,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,002 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-10-20 08:19:47,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,010 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-20 08:19:47,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:47,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:47,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,171 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:47,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:47,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-20 08:19:47,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 08:19:47,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 08:19:47,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 08:19:47,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,301 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,332 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 08:19:47,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 08:19:47,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 08:19:47,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 08:19:47,337 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 08:19:47,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 08:19:47,349 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 08:19:47,389 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-10-20 08:19:47,389 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 08:19:47,403 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 08:19:47,412 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-20 08:19:47,412 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 08:19:47,412 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_2, ULTIMATE.start_entry_point_~j~0) = 1*v_rep(select #length ULTIMATE.start_entry_point_~array~0.base)_2 + 2*ULTIMATE.start_entry_point_~j~0 Supporting invariants [] [2020-10-20 08:19:47,455 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-20 08:19:47,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-20 08:19:47,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 08:19:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:47,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 08:19:47,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 08:19:47,497 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 08:19:47,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 08:19:47,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 08:19:47,512 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-20 08:19:47,512 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 26 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-10-20 08:19:47,521 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. [2020-10-20 08:19:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 08:19:47,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 08:19:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-10-20 08:19:47,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-10-20 08:19:47,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:47,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-20 08:19:47,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:47,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2020-10-20 08:19:47,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 08:19:47,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-10-20 08:19:47,525 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:19:47,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-10-20 08:19:47,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 08:19:47,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 08:19:47,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 08:19:47,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 08:19:47,525 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:47,525 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:47,525 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 08:19:47,526 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-20 08:19:47,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 08:19:47,526 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 08:19:47,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 08:19:47,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 08:19:47 BoogieIcfgContainer [2020-10-20 08:19:47,533 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 08:19:47,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 08:19:47,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 08:19:47,534 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 08:19:47,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 08:19:40" (3/4) ... [2020-10-20 08:19:47,538 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 08:19:47,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 08:19:47,539 INFO L168 Benchmark]: Toolchain (without parser) took 8503.63 ms. Allocated memory was 42.5 MB in the beginning and 87.6 MB in the end (delta: 45.1 MB). Free memory was 21.7 MB in the beginning and 8.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 58.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,540 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 48.6 kB). Peak memory consumption was 48.6 kB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.68 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 20.8 MB in the beginning and 15.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.08 ms. Allocated memory is still 44.6 MB. Free memory was 15.1 MB in the beginning and 12.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,542 INFO L168 Benchmark]: Boogie Preprocessor took 26.87 ms. Allocated memory is still 44.6 MB. Free memory was 12.9 MB in the beginning and 11.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,543 INFO L168 Benchmark]: RCFGBuilder took 320.61 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 11.1 MB in the beginning and 13.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,543 INFO L168 Benchmark]: BuchiAutomizer took 7419.59 ms. Allocated memory was 45.1 MB in the beginning and 87.6 MB in the end (delta: 42.5 MB). Free memory was 13.2 MB in the beginning and 8.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 14.3 GB. [2020-10-20 08:19:47,544 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 87.6 MB. Free memory is still 8.3 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 08:19:47,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 32.5 MB. Free memory was 11.4 MB in the beginning and 11.4 MB in the end (delta: 48.6 kB). Peak memory consumption was 48.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 664.68 ms. Allocated memory was 42.5 MB in the beginning and 44.6 MB in the end (delta: 2.1 MB). Free memory was 20.8 MB in the beginning and 15.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 56.08 ms. Allocated memory is still 44.6 MB. Free memory was 15.1 MB in the beginning and 12.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.87 ms. Allocated memory is still 44.6 MB. Free memory was 12.9 MB in the beginning and 11.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 320.61 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 11.1 MB in the beginning and 13.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 7419.59 ms. Allocated memory was 45.1 MB in the beginning and 87.6 MB in the end (delta: 42.5 MB). Free memory was 13.2 MB in the beginning and 8.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 47.3 MB. Max. memory is 14.3 GB. * Witness Printer took 4.57 ms. Allocated memory is still 87.6 MB. Free memory is still 8.3 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -2 * i + 19 and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[array] + 2 * j 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 7.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. 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: 115 SDtfs, 146 SDslu, 119 SDs, 0 SdLazy, 98 SolverSat, 14 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 lsp57 div100 bol100 ite100 ukn100 eq190 hnf92 smp100 dnf112 smp92 tf100 neg96 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 7 VariablesLoop: 8 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 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...