./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/reducercommutativity/sum.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/reducercommutativity/sum.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 da87bd2c164f2cedcaf68e07e37e51e9db0c32ce ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 06:01:09,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 06:01:09,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 06:01:09,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 06:01:09,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 06:01:09,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 06:01:09,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 06:01:09,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 06:01:09,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 06:01:09,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 06:01:09,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 06:01:09,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 06:01:09,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 06:01:09,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 06:01:09,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 06:01:09,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 06:01:09,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 06:01:09,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 06:01:09,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 06:01:09,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 06:01:09,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 06:01:09,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 06:01:09,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 06:01:09,711 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 06:01:09,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 06:01:09,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 06:01:09,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 06:01:09,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 06:01:09,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 06:01:09,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 06:01:09,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 06:01:09,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 06:01:09,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 06:01:09,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 06:01:09,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 06:01:09,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 06:01:09,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 06:01:09,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 06:01:09,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 06:01:09,738 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 06:01:09,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 06:01:09,740 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 06:01:09,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 06:01:09,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 06:01:09,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 06:01:09,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 06:01:09,809 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 06:01:09,809 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 06:01:09,809 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 06:01:09,810 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 06:01:09,810 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 06:01:09,811 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 06:01:09,812 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 06:01:09,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 06:01:09,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 06:01:09,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 06:01:09,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 06:01:09,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 06:01:09,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 06:01:09,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 06:01:09,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 06:01:09,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 06:01:09,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 06:01:09,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 06:01:09,815 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 06:01:09,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 06:01:09,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 06:01:09,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 06:01:09,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 06:01:09,817 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 06:01:09,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 06:01:09,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 06:01:09,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 06:01:09,818 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 06:01:09,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 06:01:09,820 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da87bd2c164f2cedcaf68e07e37e51e9db0c32ce [2020-10-26 06:01:10,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 06:01:10,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 06:01:10,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 06:01:10,321 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 06:01:10,324 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 06:01:10,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sum.i [2020-10-26 06:01:10,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a7ad37b/0057fb3fdd7b4ae6bdc268f244caba27/FLAG87abac56e [2020-10-26 06:01:11,087 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 06:01:11,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sum.i [2020-10-26 06:01:11,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a7ad37b/0057fb3fdd7b4ae6bdc268f244caba27/FLAG87abac56e [2020-10-26 06:01:11,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14a7ad37b/0057fb3fdd7b4ae6bdc268f244caba27 [2020-10-26 06:01:11,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 06:01:11,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 06:01:11,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 06:01:11,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 06:01:11,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 06:01:11,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a9cd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11, skipping insertion in model container [2020-10-26 06:01:11,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 06:01:11,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 06:01:11,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:01:11,682 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 06:01:11,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 06:01:11,740 INFO L208 MainTranslator]: Completed translation [2020-10-26 06:01:11,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11 WrapperNode [2020-10-26 06:01:11,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 06:01:11,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 06:01:11,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 06:01:11,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 06:01:11,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 06:01:11,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 06:01:11,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 06:01:11,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 06:01:11,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (1/1) ... [2020-10-26 06:01:11,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 06:01:11,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 06:01:11,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 06:01:11,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 06:01:11,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (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 [2020-10-26 06:01:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 06:01:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 06:01:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 06:01:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 06:01:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 06:01:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 06:01:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 06:01:12,236 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 06:01:12,237 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-26 06:01:12,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:01:12 BoogieIcfgContainer [2020-10-26 06:01:12,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 06:01:12,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 06:01:12,241 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 06:01:12,247 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 06:01:12,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:01:12,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 06:01:11" (1/3) ... [2020-10-26 06:01:12,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f2d0d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:01:12, skipping insertion in model container [2020-10-26 06:01:12,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:01:12,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 06:01:11" (2/3) ... [2020-10-26 06:01:12,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f2d0d9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 06:01:12, skipping insertion in model container [2020-10-26 06:01:12,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 06:01:12,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:01:12" (3/3) ... [2020-10-26 06:01:12,254 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum.i [2020-10-26 06:01:12,329 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 06:01:12,331 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 06:01:12,331 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 06:01:12,331 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 06:01:12,332 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 06:01:12,332 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 06:01:12,332 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 06:01:12,333 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 06:01:12,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-26 06:01:12,410 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-26 06:01:12,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:12,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:12,418 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 06:01:12,419 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:12,419 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 06:01:12,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-26 06:01:12,422 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-10-26 06:01:12,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:12,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:12,423 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 06:01:12,423 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:12,431 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 25#L31true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 8#L22-3true [2020-10-26 06:01:12,432 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-3true assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 9#L22-2true sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 8#L22-3true [2020-10-26 06:01:12,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:12,439 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-10-26 06:01:12,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:12,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135940428] [2020-10-26 06:01:12,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,639 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1379, now seen corresponding path program 1 times [2020-10-26 06:01:12,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:12,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580641316] [2020-10-26 06:01:12,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:12,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash 28693956, now seen corresponding path program 1 times [2020-10-26 06:01:12,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:12,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173935754] [2020-10-26 06:01:12,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:12,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:12,808 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:13,313 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-10-26 06:01:13,535 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 06:01:13,548 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:01:13,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:01:13,550 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:01:13,550 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:01:13,550 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:01:13,550 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:13,550 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:01:13,551 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:01:13,551 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum.i_Iteration1_Lasso [2020-10-26 06:01:13,551 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:01:13,551 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:01:13,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:13,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,170 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-10-26 06:01:14,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:14,810 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:01:14,815 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:14,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:14,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:14,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:14,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:14,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:14,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:14,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:14,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:14,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:14,879 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 [2020-10-26 06:01:14,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:14,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:14,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:14,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:14,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:14,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:14,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:14,884 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 [2020-10-26 06:01:14,914 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 [2020-10-26 06:01:14,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:14,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:14,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:14,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:14,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:14,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:14,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:14,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:14,945 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 [2020-10-26 06:01:14,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:14,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:14,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:14,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:14,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:14,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:14,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:14,952 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 [2020-10-26 06:01:14,983 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 [2020-10-26 06:01:14,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:14,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:14,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:14,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:14,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:14,989 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:14,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:15,036 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 [2020-10-26 06:01:15,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:15,081 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 [2020-10-26 06:01:15,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,086 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 [2020-10-26 06:01:15,119 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 [2020-10-26 06:01:15,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,129 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 [2020-10-26 06:01:15,155 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 [2020-10-26 06:01:15,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,165 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 [2020-10-26 06:01:15,194 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 [2020-10-26 06:01:15,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,228 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 [2020-10-26 06:01:15,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,246 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 [2020-10-26 06:01:15,294 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 [2020-10-26 06:01:15,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,304 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 [2020-10-26 06:01:15,345 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 [2020-10-26 06:01:15,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,359 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 [2020-10-26 06:01:15,391 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 [2020-10-26 06:01:15,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:15,395 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) [2020-10-26 06:01:15,433 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 [2020-10-26 06:01:15,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:15,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:15,436 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 [2020-10-26 06:01:15,438 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) [2020-10-26 06:01:15,485 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,492 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,527 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 [2020-10-26 06:01:15,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,597 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 [2020-10-26 06:01:15,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:15,649 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 [2020-10-26 06:01:15,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:15,704 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 [2020-10-26 06:01:15,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,713 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) [2020-10-26 06:01:15,757 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 [2020-10-26 06:01:15,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,773 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) [2020-10-26 06:01:15,810 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 [2020-10-26 06:01:15,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,825 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) [2020-10-26 06:01:15,858 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 [2020-10-26 06:01:15,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,869 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) [2020-10-26 06:01:15,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:15,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:15,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:15,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:15,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:15,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:15,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:15,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:15,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:15,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:15,987 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:01:16,037 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-26 06:01:16,037 INFO L444 ModelExtractionUtils]: 10 out of 31 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:16,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:16,047 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:01:16,048 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:01:16,049 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sum_~i~0, ~N~0) = -1*ULTIMATE.start_sum_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-26 06:01:16,302 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2020-10-26 06:01:16,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:16,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:01:16,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:16,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:01:16,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:16,434 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 [2020-10-26 06:01:16,435 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-10-26 06:01:16,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 53 states and 73 transitions. Complement of second has 8 states. [2020-10-26 06:01:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:01:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:01:16,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-10-26 06:01:16,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-26 06:01:16,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:16,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-26 06:01:16,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:16,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-26 06:01:16,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:16,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 73 transitions. [2020-10-26 06:01:16,512 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:16,517 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 17 states and 23 transitions. [2020-10-26 06:01:16,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-10-26 06:01:16,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:01:16,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2020-10-26 06:01:16,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:16,519 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-26 06:01:16,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2020-10-26 06:01:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-26 06:01:16,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 06:01:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2020-10-26 06:01:16,546 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-26 06:01:16,546 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-26 06:01:16,546 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 06:01:16,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2020-10-26 06:01:16,547 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:16,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:16,547 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:16,548 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-26 06:01:16,548 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:16,548 INFO L794 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 285#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 286#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 281#L22-3 assume !(sum_~i~0 < ~N~0); 277#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 278#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 274#L22-8 [2020-10-26 06:01:16,549 INFO L796 eck$LassoCheckResult]: Loop: 274#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 273#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 274#L22-8 [2020-10-26 06:01:16,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:16,549 INFO L82 PathProgramCache]: Analyzing trace with hash 889510859, now seen corresponding path program 1 times [2020-10-26 06:01:16,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:16,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688372312] [2020-10-26 06:01:16,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:16,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:16,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688372312] [2020-10-26 06:01:16,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:01:16,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 06:01:16,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160237428] [2020-10-26 06:01:16,621 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:01:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-10-26 06:01:16,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:16,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044130427] [2020-10-26 06:01:16,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:16,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:16,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:16,635 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:16,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:01:16,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 06:01:16,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 06:01:16,689 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-10-26 06:01:16,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:01:16,735 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2020-10-26 06:01:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 06:01:16,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-10-26 06:01:16,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:16,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-10-26 06:01:16,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:01:16,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:01:16,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-10-26 06:01:16,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:16,739 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-10-26 06:01:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-10-26 06:01:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-26 06:01:16,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-26 06:01:16,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-26 06:01:16,742 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-26 06:01:16,742 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-26 06:01:16,742 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-26 06:01:16,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-10-26 06:01:16,756 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:16,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:16,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:16,760 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:16,761 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:16,761 INFO L794 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 326#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 327#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 322#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 323#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 324#L22-3 assume !(sum_~i~0 < ~N~0); 318#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 319#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 315#L22-8 [2020-10-26 06:01:16,762 INFO L796 eck$LassoCheckResult]: Loop: 315#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 314#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 315#L22-8 [2020-10-26 06:01:16,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash 123162473, now seen corresponding path program 1 times [2020-10-26 06:01:16,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:16,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971511169] [2020-10-26 06:01:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:16,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:16,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971511169] [2020-10-26 06:01:16,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450586934] [2020-10-26 06:01:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:01:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:16,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:01:16,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:16,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 06:01:16,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-26 06:01:16,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641494493] [2020-10-26 06:01:16,937 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:01:16,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:16,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 2 times [2020-10-26 06:01:16,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:16,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236751851] [2020-10-26 06:01:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:16,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:16,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:16,951 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:16,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:01:16,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 06:01:16,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-10-26 06:01:16,987 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-10-26 06:01:17,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:01:17,048 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-10-26 06:01:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 06:01:17,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2020-10-26 06:01:17,050 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:17,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2020-10-26 06:01:17,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-26 06:01:17,051 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-26 06:01:17,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2020-10-26 06:01:17,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:17,051 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-26 06:01:17,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2020-10-26 06:01:17,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-10-26 06:01:17,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-26 06:01:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-10-26 06:01:17,055 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-10-26 06:01:17,055 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-10-26 06:01:17,055 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-26 06:01:17,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2020-10-26 06:01:17,056 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-26 06:01:17,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:17,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:17,057 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:17,057 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:17,057 INFO L794 eck$LassoCheckResult]: Stem: 397#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 395#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 396#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 389#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 390#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 391#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 392#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 394#L22-3 assume !(sum_~i~0 < ~N~0); 385#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 386#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 382#L22-8 [2020-10-26 06:01:17,057 INFO L796 eck$LassoCheckResult]: Loop: 382#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 381#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 382#L22-8 [2020-10-26 06:01:17,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:17,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1898228857, now seen corresponding path program 2 times [2020-10-26 06:01:17,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:17,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812067572] [2020-10-26 06:01:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,118 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:17,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:17,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 3 times [2020-10-26 06:01:17,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:17,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069834544] [2020-10-26 06:01:17,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,146 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:17,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:17,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1163170153, now seen corresponding path program 1 times [2020-10-26 06:01:17,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:17,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873701437] [2020-10-26 06:01:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:17,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:17,229 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:18,297 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 184 DAG size of output: 157 [2020-10-26 06:01:18,595 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-26 06:01:18,598 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:01:18,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:01:18,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:01:18,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:01:18,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:01:18,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:18,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:01:18,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:01:18,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum.i_Iteration4_Lasso [2020-10-26 06:01:18,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:01:18,600 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:01:18,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:18,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,805 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2020-10-26 06:01:19,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:19,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:20,625 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-10-26 06:01:20,668 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:01:20,668 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-26 06:01:20,680 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 [2020-10-26 06:01:20,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,686 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) [2020-10-26 06:01:20,720 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 [2020-10-26 06:01:20,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,723 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,725 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 [2020-10-26 06:01:20,770 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 [2020-10-26 06:01:20,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:20,774 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 [2020-10-26 06:01:20,799 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 [2020-10-26 06:01:20,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:20,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,826 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 [2020-10-26 06:01:20,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:20,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,853 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 [2020-10-26 06:01:20,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:20,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:20,865 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) [2020-10-26 06:01:20,900 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 [2020-10-26 06:01:20,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,906 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) [2020-10-26 06:01:20,945 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 [2020-10-26 06:01:20,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:20,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:20,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:20,953 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) [2020-10-26 06:01:20,989 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 [2020-10-26 06:01:20,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:20,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:20,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:20,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:20,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:20,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,000 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) [2020-10-26 06:01:21,037 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 [2020-10-26 06:01:21,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,054 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:21,091 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 [2020-10-26 06:01:21,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,096 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) [2020-10-26 06:01:21,133 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 [2020-10-26 06:01:21,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,136 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 [2020-10-26 06:01:21,139 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 [2020-10-26 06:01:21,165 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 [2020-10-26 06:01:21,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:21,169 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 [2020-10-26 06:01:21,200 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 [2020-10-26 06:01:21,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,214 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) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,240 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 [2020-10-26 06:01:21,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,246 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 [2020-10-26 06:01:21,268 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 [2020-10-26 06:01:21,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,271 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,274 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 [2020-10-26 06:01:21,297 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 [2020-10-26 06:01:21,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,305 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) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,333 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 [2020-10-26 06:01:21,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,336 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:21,337 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) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,360 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 [2020-10-26 06:01:21,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,363 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,363 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,367 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:21,407 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 [2020-10-26 06:01:21,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,413 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:21,451 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 [2020-10-26 06:01:21,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:21,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:21,494 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 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,517 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 [2020-10-26 06:01:21,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,525 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:21,551 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 [2020-10-26 06:01:21,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,555 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 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,580 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 [2020-10-26 06:01:21,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:21,584 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 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,610 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 [2020-10-26 06:01:21,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:21,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:21,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:21,614 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,637 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 [2020-10-26 06:01:21,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:21,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:21,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:21,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:21,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:21,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:21,669 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:01:21,715 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-26 06:01:21,715 INFO L444 ModelExtractionUtils]: 11 out of 31 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:21,724 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:21,730 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:01:21,730 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:01:21,730 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sum_~i~0, ~N~0) = -1*ULTIMATE.start_sum_~i~0 + 1*~N~0 Supporting invariants [] [2020-10-26 06:01:22,010 INFO L297 tatePredicateManager]: 55 out of 55 supporting invariants were superfluous and have been removed [2020-10-26 06:01:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:22,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:01:22,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:22,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:01:22,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:22,091 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 [2020-10-26 06:01:22,091 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-10-26 06:01:22,141 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 26 states and 33 transitions. Complement of second has 7 states. [2020-10-26 06:01:22,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:01:22,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:01:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-10-26 06:01:22,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 2 letters. [2020-10-26 06:01:22,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:22,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 2 letters. [2020-10-26 06:01:22,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:22,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2020-10-26 06:01:22,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:22,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-10-26 06:01:22,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 20 states and 24 transitions. [2020-10-26 06:01:22,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 06:01:22,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-10-26 06:01:22,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-10-26 06:01:22,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:22,152 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-10-26 06:01:22,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-10-26 06:01:22,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-26 06:01:22,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-26 06:01:22,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2020-10-26 06:01:22,159 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-10-26 06:01:22,159 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-10-26 06:01:22,159 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-26 06:01:22,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2020-10-26 06:01:22,160 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:22,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:22,161 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:22,161 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:22,161 INFO L794 eck$LassoCheckResult]: Stem: 722#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 720#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 721#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 714#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 715#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 716#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 717#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 719#L22-3 assume !(sum_~i~0 < ~N~0); 710#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 711#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 725#L22-8 assume !(sum_~i~0 < ~N~0); 723#L22-9 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 724#L25-1 main_#t~ret9 := sum_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~1 := 0; 712#L43-3 [2020-10-26 06:01:22,161 INFO L796 eck$LassoCheckResult]: Loop: 712#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem12, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem12; 713#L43-2 main_#t~post11 := main_~i~1;main_~i~1 := 1 + main_#t~post11;havoc main_#t~post11; 712#L43-3 [2020-10-26 06:01:22,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1698534614, now seen corresponding path program 1 times [2020-10-26 06:01:22,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578936150] [2020-10-26 06:01:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 06:01:22,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578936150] [2020-10-26 06:01:22,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:01:22,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 06:01:22,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292574183] [2020-10-26 06:01:22,267 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:01:22,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 1 times [2020-10-26 06:01:22,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5076175] [2020-10-26 06:01:22,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,282 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:22,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:01:22,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 06:01:22,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 06:01:22,346 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-26 06:01:22,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:01:22,405 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-10-26 06:01:22,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 06:01:22,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2020-10-26 06:01:22,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 26 transitions. [2020-10-26 06:01:22,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-26 06:01:22,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-26 06:01:22,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2020-10-26 06:01:22,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:22,408 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-26 06:01:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2020-10-26 06:01:22,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2020-10-26 06:01:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-26 06:01:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-10-26 06:01:22,416 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-26 06:01:22,417 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-10-26 06:01:22,417 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-26 06:01:22,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2020-10-26 06:01:22,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:22,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:22,419 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:22,419 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:22,419 INFO L794 eck$LassoCheckResult]: Stem: 772#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 770#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 771#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 764#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 765#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 766#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 767#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 769#L22-3 assume !(sum_~i~0 < ~N~0); 760#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 761#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 775#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 756#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 757#L22-8 assume !(sum_~i~0 < ~N~0); 773#L22-9 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 774#L25-1 main_#t~ret9 := sum_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~1 := 0; 762#L43-3 [2020-10-26 06:01:22,421 INFO L796 eck$LassoCheckResult]: Loop: 762#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem12, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem12; 763#L43-2 main_#t~post11 := main_~i~1;main_~i~1 := 1 + main_#t~post11;havoc main_#t~post11; 762#L43-3 [2020-10-26 06:01:22,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,422 INFO L82 PathProgramCache]: Analyzing trace with hash 205910964, now seen corresponding path program 1 times [2020-10-26 06:01:22,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661130875] [2020-10-26 06:01:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 06:01:22,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661130875] [2020-10-26 06:01:22,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404071625] [2020-10-26 06:01:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 06:01:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:22,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:01:22,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:22,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 06:01:22,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 06:01:22,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-10-26 06:01:22,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543867619] [2020-10-26 06:01:22,614 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:01:22,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 2 times [2020-10-26 06:01:22,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027898915] [2020-10-26 06:01:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,632 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:22,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:01:22,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 06:01:22,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-10-26 06:01:22,692 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. cyclomatic complexity: 7 Second operand 7 states. [2020-10-26 06:01:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:01:22,811 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2020-10-26 06:01:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 06:01:22,812 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 31 transitions. [2020-10-26 06:01:22,812 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 31 transitions. [2020-10-26 06:01:22,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-26 06:01:22,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-10-26 06:01:22,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 31 transitions. [2020-10-26 06:01:22,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:22,814 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 31 transitions. [2020-10-26 06:01:22,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 31 transitions. [2020-10-26 06:01:22,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2020-10-26 06:01:22,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-26 06:01:22,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-10-26 06:01:22,816 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-10-26 06:01:22,816 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-10-26 06:01:22,816 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-26 06:01:22,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2020-10-26 06:01:22,817 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-26 06:01:22,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:22,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:22,818 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:22,818 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:22,818 INFO L794 eck$LassoCheckResult]: Stem: 874#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 872#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 873#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 866#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 867#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 868#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 869#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 871#L22-3 assume !(sum_~i~0 < ~N~0); 862#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 863#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 877#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 858#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 859#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 878#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 879#L22-8 assume !(sum_~i~0 < ~N~0); 875#L22-9 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 876#L25-1 main_#t~ret9 := sum_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~1 := 0; 864#L43-3 [2020-10-26 06:01:22,818 INFO L796 eck$LassoCheckResult]: Loop: 864#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem12, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem12; 865#L43-2 main_#t~post11 := main_~i~1;main_~i~1 := 1 + main_#t~post11;havoc main_#t~post11; 864#L43-3 [2020-10-26 06:01:22,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,819 INFO L82 PathProgramCache]: Analyzing trace with hash 313660178, now seen corresponding path program 2 times [2020-10-26 06:01:22,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662760272] [2020-10-26 06:01:22,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,917 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:22,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2403, now seen corresponding path program 3 times [2020-10-26 06:01:22,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793117005] [2020-10-26 06:01:22,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,927 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:22,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:22,928 INFO L82 PathProgramCache]: Analyzing trace with hash 779721780, now seen corresponding path program 1 times [2020-10-26 06:01:22,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:22,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356947322] [2020-10-26 06:01:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:22,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:22,998 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:24,658 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 234 DAG size of output: 200 [2020-10-26 06:01:24,683 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:01:27,506 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 215 DAG size of output: 173 [2020-10-26 06:01:27,514 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:01:27,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:01:27,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:01:27,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:01:27,515 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:01:27,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:27,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:01:27,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:01:27,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum.i_Iteration7_Lasso [2020-10-26 06:01:27,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:01:27,515 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:01:27,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:27,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:27,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:27,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:27,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:29,536 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 49 [2020-10-26 06:01:30,896 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 135 DAG size of output: 110 [2020-10-26 06:01:31,148 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2020-10-26 06:01:31,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:31,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:32,488 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 176 DAG size of output: 137 [2020-10-26 06:01:32,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-10-26 06:01:34,319 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2020-10-26 06:01:34,510 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:01:34,512 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:34,526 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 [2020-10-26 06:01:34,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:34,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:34,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,534 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,562 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 [2020-10-26 06:01:34,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:34,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:34,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:34,568 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,590 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 [2020-10-26 06:01:34,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:34,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:34,599 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,623 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 [2020-10-26 06:01:34,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:34,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:34,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:34,627 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 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,651 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 [2020-10-26 06:01:34,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:34,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:34,664 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 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,686 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 [2020-10-26 06:01:34,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:34,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:34,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:34,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:34,690 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 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,713 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 [2020-10-26 06:01:34,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:34,716 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-26 06:01:34,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:34,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:34,746 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 06:01:34,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:34,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:01:34,876 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2020-10-26 06:01:34,876 INFO L444 ModelExtractionUtils]: 33 out of 64 variables were initially zero. Simplification set additionally 28 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:34,879 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 06:01:34,885 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-26 06:01:34,885 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:01:34,885 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ~N~0) = -1*ULTIMATE.start_main_~i~1 + 1*~N~0 Supporting invariants [] [2020-10-26 06:01:35,412 INFO L297 tatePredicateManager]: 76 out of 76 supporting invariants were superfluous and have been removed [2020-10-26 06:01:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:35,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 06:01:35,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:35,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 06:01:35,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:35,495 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 [2020-10-26 06:01:35,495 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-10-26 06:01:35,520 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 27 states and 34 transitions. Complement of second has 6 states. [2020-10-26 06:01:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 06:01:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 06:01:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-26 06:01:35,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 2 letters. [2020-10-26 06:01:35,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:35,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 19 letters. Loop has 2 letters. [2020-10-26 06:01:35,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:35,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 4 letters. [2020-10-26 06:01:35,524 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:35,524 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2020-10-26 06:01:35,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:01:35,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 27 transitions. [2020-10-26 06:01:35,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-26 06:01:35,526 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-26 06:01:35,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2020-10-26 06:01:35,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:35,526 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-26 06:01:35,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2020-10-26 06:01:35,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-26 06:01:35,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 06:01:35,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-26 06:01:35,530 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-26 06:01:35,530 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-26 06:01:35,530 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-26 06:01:35,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2020-10-26 06:01:35,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:01:35,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:35,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:35,533 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:35,534 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:35,535 INFO L794 eck$LassoCheckResult]: Stem: 1308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1306#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 1307#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1300#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1301#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1302#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1303#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1305#L22-3 assume !(sum_~i~0 < ~N~0); 1295#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 1296#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1311#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1291#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1292#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1312#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1313#L22-8 assume !(sum_~i~0 < ~N~0); 1309#L22-9 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 1310#L25-1 main_#t~ret9 := sum_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~1 := 0; 1297#L43-3 assume !(main_~i~1 < ~N~0 - 1); 1293#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1294#L22-13 [2020-10-26 06:01:35,535 INFO L796 eck$LassoCheckResult]: Loop: 1294#L22-13 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1304#L22-12 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1294#L22-13 [2020-10-26 06:01:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,540 INFO L82 PathProgramCache]: Analyzing trace with hash 779721722, now seen corresponding path program 1 times [2020-10-26 06:01:35,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:35,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517630395] [2020-10-26 06:01:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 06:01:35,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517630395] [2020-10-26 06:01:35,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 06:01:35,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 06:01:35,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969592372] [2020-10-26 06:01:35,604 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-26 06:01:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,604 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2020-10-26 06:01:35,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:35,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467552829] [2020-10-26 06:01:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:35,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 06:01:35,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 06:01:35,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 06:01:35,660 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-10-26 06:01:35,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 06:01:35,694 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2020-10-26 06:01:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 06:01:35,695 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2020-10-26 06:01:35,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:01:35,697 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 27 transitions. [2020-10-26 06:01:35,697 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-10-26 06:01:35,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-10-26 06:01:35,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2020-10-26 06:01:35,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:35,698 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-10-26 06:01:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2020-10-26 06:01:35,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2020-10-26 06:01:35,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-26 06:01:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-26 06:01:35,700 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-26 06:01:35,701 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-26 06:01:35,701 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-26 06:01:35,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 26 transitions. [2020-10-26 06:01:35,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 06:01:35,702 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 06:01:35,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 06:01:35,702 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 06:01:35,703 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 06:01:35,703 INFO L794 eck$LassoCheckResult]: Stem: 1361#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(6);call write~init~int(115, #t~string1.base, #t~string1.offset, 1);call write~init~int(117, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(109, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1359#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_#t~mem7, main_#t~mem8, main_#t~ret9, main_#t~mem10, main_#t~mem12, main_#t~post11, main_~i~1, main_#t~ret13, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet5;havoc main_#t~nondet5; 1360#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1354#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1355#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1356#L22-3 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1357#L22-2 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1367#L22-3 assume !(sum_~i~0 < ~N~0); 1349#L22-4 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 1350#L25 main_#t~ret6 := sum_#res;main_~ret~1 := main_#t~ret6;havoc main_#t~ret6;call main_#t~mem7 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem7;havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem8, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem8;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1364#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1345#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1346#L22-8 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1365#L22-7 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1366#L22-8 assume !(sum_~i~0 < ~N~0); 1362#L22-9 sum_#res := (if sum_~ret~0 % 4294967296 <= 2147483647 then sum_~ret~0 % 4294967296 else sum_~ret~0 % 4294967296 - 4294967296); 1363#L25-1 main_#t~ret9 := sum_#res;main_~ret2~0 := main_#t~ret9;havoc main_#t~ret9;call main_#t~mem10 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem10;havoc main_#t~mem10;main_~i~1 := 0; 1351#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem12, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem12; 1352#L43-2 main_#t~post11 := main_~i~1;main_~i~1 := 1 + main_#t~post11;havoc main_#t~post11; 1353#L43-3 assume !(main_~i~1 < ~N~0 - 1); 1347#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);sum_#in~x.base, sum_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc sum_#res;havoc sum_#t~mem4, sum_#t~post3, sum_~x.base, sum_~x.offset, sum_~i~0, sum_~ret~0;sum_~x.base, sum_~x.offset := sum_#in~x.base, sum_#in~x.offset;havoc sum_~i~0;havoc sum_~ret~0;sum_~ret~0 := 0;sum_~i~0 := 0; 1348#L22-13 [2020-10-26 06:01:35,703 INFO L796 eck$LassoCheckResult]: Loop: 1348#L22-13 assume !!(sum_~i~0 < ~N~0);call sum_#t~mem4 := read~int(sum_~x.base, sum_~x.offset + 4 * sum_~i~0, 4);sum_~ret~0 := sum_~ret~0 + sum_#t~mem4;havoc sum_#t~mem4; 1358#L22-12 sum_#t~post3 := sum_~i~0;sum_~i~0 := 1 + sum_#t~post3;havoc sum_#t~post3; 1348#L22-13 [2020-10-26 06:01:35,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1988322460, now seen corresponding path program 1 times [2020-10-26 06:01:35,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:35,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578213476] [2020-10-26 06:01:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,760 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2020-10-26 06:01:35,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:35,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704028445] [2020-10-26 06:01:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,766 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,767 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:35,768 INFO L82 PathProgramCache]: Analyzing trace with hash -482560770, now seen corresponding path program 1 times [2020-10-26 06:01:35,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 06:01:35,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967136552] [2020-10-26 06:01:35,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 06:01:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 06:01:35,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 06:01:35,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 06:01:39,148 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 280 DAG size of output: 234 [2020-10-26 06:01:39,158 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:01:39,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-26 06:01:45,630 WARN L193 SmtUtils]: Spent 6.40 s on a formula simplification. DAG size of input: 225 DAG size of output: 172 [2020-10-26 06:01:45,637 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 06:01:45,638 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 06:01:45,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 06:01:45,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 06:01:45,638 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 06:01:45,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:45,638 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 06:01:45,638 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 06:01:45,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum.i_Iteration9_Lasso [2020-10-26 06:01:45,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 06:01:45,638 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 06:01:45,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:45,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 06:01:47,740 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 49 [2020-10-26 06:01:48,910 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 132 DAG size of output: 113 [2020-10-26 06:01:50,574 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 168 DAG size of output: 130 [2020-10-26 06:01:50,626 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2020-10-26 06:01:52,486 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-10-26 06:01:52,542 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 06:01:52,545 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:52,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,596 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 [2020-10-26 06:01:52,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,602 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:52,642 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 [2020-10-26 06:01:52,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:52,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,653 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:52,691 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 [2020-10-26 06:01:52,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,696 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:52,730 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,733 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 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,758 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 [2020-10-26 06:01:52,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,762 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,789 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 [2020-10-26 06:01:52,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:52,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:52,795 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,820 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 [2020-10-26 06:01:52,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,823 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,855 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 [2020-10-26 06:01:52,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,859 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,884 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 [2020-10-26 06:01:52,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,887 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 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,913 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 [2020-10-26 06:01:52,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,918 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,942 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 [2020-10-26 06:01:52,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,945 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:52,971 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 [2020-10-26 06:01:52,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:52,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:52,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:52,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:52,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:52,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:52,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:52,974 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 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,000 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 [2020-10-26 06:01:53,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,003 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,025 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 [2020-10-26 06:01:53,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,035 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,060 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 [2020-10-26 06:01:53,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,064 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 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,086 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 [2020-10-26 06:01:53,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,089 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,113 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 [2020-10-26 06:01:53,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,117 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 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,143 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 [2020-10-26 06:01:53,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,148 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 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,172 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 [2020-10-26 06:01:53,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,175 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 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,201 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 [2020-10-26 06:01:53,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,207 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 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:53,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,239 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 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,262 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 [2020-10-26 06:01:53,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,265 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,269 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 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,297 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 [2020-10-26 06:01:53,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,311 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 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,336 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 [2020-10-26 06:01:53,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,345 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:53,386 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 [2020-10-26 06:01:53,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,394 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:53,436 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 [2020-10-26 06:01:53,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,453 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,479 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 [2020-10-26 06:01:53,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,482 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,482 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,487 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,518 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 [2020-10-26 06:01:53,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,523 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-26 06:01:53,523 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:53,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,559 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 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 06:01:53,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,586 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:53,608 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,612 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 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,636 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 [2020-10-26 06:01:53,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 06:01:53,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 06:01:53,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 06:01:53,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-26 06:01:53,639 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 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,662 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 [2020-10-26 06:01:53,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 06:01:53,664 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-26 06:01:53,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 06:01:53,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 06:01:53,687 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-26 06:01:53,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-26 06:01:53,714 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 06:01:53,822 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2020-10-26 06:01:53,822 INFO L444 ModelExtractionUtils]: 6 out of 40 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 06:01:53,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 06:01:53,838 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-26 06:01:53,838 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 06:01:53,838 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_sum_~i~0, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_4) = -4*ULTIMATE.start_sum_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_4 Supporting invariants [1*ULTIMATE.start_sum_~x.offset >= 0] [2020-10-26 06:01:54,292 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-10-26 06:01:54,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-26 06:01:54,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 06:01:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:54,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-26 06:01:54,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 06:01:54,425 WARN L261 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 06:01:54,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 06:01:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 06:01:54,460 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 [2020-10-26 06:01:54,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 26 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-10-26 06:01:54,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 26 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2020-10-26 06:01:54,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-26 06:01:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-26 06:01:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-10-26 06:01:54,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 2 letters. [2020-10-26 06:01:54,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:54,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 23 letters. Loop has 2 letters. [2020-10-26 06:01:54,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:54,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 21 letters. Loop has 4 letters. [2020-10-26 06:01:54,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 06:01:54,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2020-10-26 06:01:54,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:01:54,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2020-10-26 06:01:54,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 06:01:54,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 06:01:54,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 06:01:54,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 06:01:54,522 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:01:54,522 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:01:54,522 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 06:01:54,522 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-26 06:01:54,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 06:01:54,523 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 06:01:54,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 06:01:54,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 06:01:54 BoogieIcfgContainer [2020-10-26 06:01:54,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 06:01:54,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 06:01:54,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 06:01:54,531 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 06:01:54,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 06:01:12" (3/4) ... [2020-10-26 06:01:54,535 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 06:01:54,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 06:01:54,537 INFO L168 Benchmark]: Toolchain (without parser) took 43110.67 ms. Allocated memory was 52.4 MB in the beginning and 172.0 MB in the end (delta: 119.5 MB). Free memory was 29.2 MB in the beginning and 100.4 MB in the end (delta: -71.2 MB). Peak memory consumption was 51.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,537 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:01:54,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.03 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 32.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.80 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,539 INFO L168 Benchmark]: Boogie Preprocessor took 32.78 ms. Allocated memory is still 52.4 MB. Free memory was 30.5 MB in the beginning and 29.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,539 INFO L168 Benchmark]: RCFGBuilder took 403.67 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 38.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,540 INFO L168 Benchmark]: BuchiAutomizer took 42289.82 ms. Allocated memory was 65.0 MB in the beginning and 172.0 MB in the end (delta: 107.0 MB). Free memory was 37.8 MB in the beginning and 100.4 MB in the end (delta: -62.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2020-10-26 06:01:54,540 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 172.0 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 06:01:54,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.03 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 32.2 MB in the end (delta: -3.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.80 ms. Allocated memory is still 52.4 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.78 ms. Allocated memory is still 52.4 MB. Free memory was 30.5 MB in the beginning and 29.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 403.67 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 38.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 42289.82 ms. Allocated memory was 65.0 MB in the beginning and 172.0 MB in the end (delta: 107.0 MB). Free memory was 37.8 MB in the beginning and 100.4 MB in the end (delta: -62.6 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 172.0 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 16.1 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 9 terminating modules (5 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 5 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[x] and consists of 4 locations. 5 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.2s and 10 iterations. TraceHistogramMax:2. Analysis of lassos took 40.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 9. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 98 SDslu, 41 SDs, 0 SdLazy, 181 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU5 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital531 mio100 ax100 hnf99 lsp164 ukn43 mio100 lsp124 div101 bol100 ite100 ukn100 eq158 hnf87 smp73 dnf250 smp59 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 174ms VariablesStem: 34 VariablesLoop: 16 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...