./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23c47ba60fd5b5d47afa1439cbedebaab58a1798 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:47:21,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:47:21,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:47:21,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:47:21,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:47:21,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:47:21,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:47:21,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:47:21,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:47:21,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:47:21,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:47:21,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:47:21,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:47:21,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:47:21,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:47:21,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:47:21,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:47:21,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:47:21,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:47:21,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:47:21,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:47:21,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:47:21,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:47:21,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:47:21,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:47:21,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:47:21,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:47:21,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:47:21,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:47:21,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:47:21,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:47:21,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:47:21,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:47:21,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:47:21,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:47:21,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:47:21,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:47:21,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:47:21,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:47:21,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:47:21,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:47:21,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:47:21,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:47:21,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:47:21,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:47:21,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:47:21,304 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:47:21,304 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:47:21,305 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:47:21,305 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:47:21,305 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:47:21,305 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:47:21,307 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:47:21,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:47:21,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:47:21,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:47:21,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:47:21,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:47:21,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:47:21,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:47:21,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:47:21,311 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:47:21,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:47:21,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:47:21,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:47:21,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:47:21,312 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:47:21,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:47:21,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:47:21,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:47:21,313 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:47:21,315 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:47:21,315 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c47ba60fd5b5d47afa1439cbedebaab58a1798 [2020-10-19 18:47:21,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:47:21,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:47:21,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:47:21,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:47:21,704 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:47:21,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2020-10-19 18:47:21,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3b82311/50dbce17351f44c3af75edb398aea537/FLAGb721d2bd5 [2020-10-19 18:47:22,307 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:47:22,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/mult_array-alloca-2.i [2020-10-19 18:47:22,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3b82311/50dbce17351f44c3af75edb398aea537/FLAGb721d2bd5 [2020-10-19 18:47:22,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d3b82311/50dbce17351f44c3af75edb398aea537 [2020-10-19 18:47:22,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:47:22,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:47:22,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:47:22,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:47:22,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:47:22,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:47:22" (1/1) ... [2020-10-19 18:47:22,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@831af79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:22, skipping insertion in model container [2020-10-19 18:47:22,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:47:22" (1/1) ... [2020-10-19 18:47:22,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:47:22,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:47:23,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:47:23,121 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:47:23,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:47:23,208 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:47:23,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23 WrapperNode [2020-10-19 18:47:23,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:47:23,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:47:23,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:47:23,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:47:23,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:47:23,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:47:23,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:47:23,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:47:23,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... [2020-10-19 18:47:23,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:47:23,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:47:23,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:47:23,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:47:23,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:47:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:47:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:47:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:47:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:47:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:47:23,632 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:47:23,633 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:47:23,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:23 BoogieIcfgContainer [2020-10-19 18:47:23,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:47:23,637 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:47:23,638 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:47:23,641 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:47:23,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:23,643 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:47:22" (1/3) ... [2020-10-19 18:47:23,644 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d3a718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:47:23, skipping insertion in model container [2020-10-19 18:47:23,644 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:23,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:47:23" (2/3) ... [2020-10-19 18:47:23,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@13d3a718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:47:23, skipping insertion in model container [2020-10-19 18:47:23,646 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:47:23,646 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:23" (3/3) ... [2020-10-19 18:47:23,648 INFO L373 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca-2.i [2020-10-19 18:47:23,721 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:47:23,721 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:47:23,722 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:47:23,722 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:47:23,722 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:47:23,722 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:47:23,723 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:47:23,723 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:47:23,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 18:47:23,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:47:23,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:23,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:23,780 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:47:23,780 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:47:23,781 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:47:23,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-10-19 18:47:23,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:47:23,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:23,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:23,784 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:47:23,785 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:47:23,793 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 16#L550true assume !(main_~length~0 < 1); 3#L550-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L552true assume !(main_~fac~0 < 1); 17#L552-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 6#L555true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 10#L556-3true [2020-10-19 18:47:23,794 INFO L796 eck$LassoCheckResult]: Loop: 10#L556-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 8#L556-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10#L556-3true [2020-10-19 18:47:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:23,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2020-10-19 18:47:23,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:23,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248700363] [2020-10-19 18:47:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:23,915 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:23,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [508833359] [2020-10-19 18:47:23,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:23,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:24,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,028 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:24,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:24,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-10-19 18:47:24,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:24,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654950781] [2020-10-19 18:47:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:24,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:24,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,068 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:24,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:24,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2020-10-19 18:47:24,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:24,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374544097] [2020-10-19 18:47:24,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:24,080 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:24,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340120235] [2020-10-19 18:47:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:24,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:24,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:24,168 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:24,415 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2020-10-19 18:47:24,516 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:47:24,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:47:24,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:47:24,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:47:24,517 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:47:24,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:24,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:47:24,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:47:24,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-2.i_Iteration1_Lasso [2020-10-19 18:47:24,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:47:24,519 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:47:24,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:24,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:25,090 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:47:25,097 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:47:25,112 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:25,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:25,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:25,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:25,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:47:25,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:25,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:25,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:25,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:25,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,183 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) [2020-10-19 18:47:25,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:25,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:25,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:25,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:25,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:47:25,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:25,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:25,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:25,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:25,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:47:25,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:25,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:25,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:47:25,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,365 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) [2020-10-19 18:47:25,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:25,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:25,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:25,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:25,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:47:25,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:47:25,472 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:47:25,557 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-10-19 18:47:25,558 INFO L444 ModelExtractionUtils]: 13 out of 28 variables were initially zero. Simplification set additionally 12 variables to zero. 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) [2020-10-19 18:47:25,566 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:25,572 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:47:25,573 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:47:25,574 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-10-19 18:47:25,635 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-10-19 18:47:25,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:25,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:47:25,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:47:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:25,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:47:25,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:47:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:47:25,763 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:47:25,765 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2020-10-19 18:47:25,842 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2020-10-19 18:47:25,844 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 [2020-10-19 18:47:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:47:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-10-19 18:47:25,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 18:47:25,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:25,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 18:47:25,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:25,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 18:47:25,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:25,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2020-10-19 18:47:25,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:47:25,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2020-10-19 18:47:25,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:47:25,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:47:25,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-10-19 18:47:25,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:47:25,873 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-19 18:47:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-10-19 18:47:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-19 18:47:25,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:47:25,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-10-19 18:47:25,914 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-19 18:47:25,914 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-10-19 18:47:25,914 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:47:25,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-10-19 18:47:25,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:47:25,915 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:25,915 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:25,916 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:47:25,916 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:47:25,916 INFO L794 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L550 assume !(main_~length~0 < 1); 131#L550-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 132#L552 assume !(main_~fac~0 < 1); 139#L552-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 141#L555 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 133#L556-3 assume !(main_~i~0 < main_~length~0); 134#L556-4 main_~j~0 := 0; 138#L559-3 [2020-10-19 18:47:25,916 INFO L796 eck$LassoCheckResult]: Loop: 138#L559-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 140#L559-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 138#L559-3 [2020-10-19 18:47:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:25,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2020-10-19 18:47:25,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:25,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070652569] [2020-10-19 18:47:25,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:25,924 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:25,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980548786] [2020-10-19 18:47:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:25,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:47:25,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:47:25,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:47:25,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070652569] [2020-10-19 18:47:25,998 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-10-19 18:47:25,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980548786] [2020-10-19 18:47:26,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:47:26,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:47:26,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452426805] [2020-10-19 18:47:26,005 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:47:26,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:26,005 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2020-10-19 18:47:26,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:26,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461815219] [2020-10-19 18:47:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:26,010 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:26,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454046562] [2020-10-19 18:47:26,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:26,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:26,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:26,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:27,214 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-19 18:47:27,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:47:27,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:47:27,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:47:27,222 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-10-19 18:47:27,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:47:27,271 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2020-10-19 18:47:27,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:47:27,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2020-10-19 18:47:27,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:47:27,276 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2020-10-19 18:47:27,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-10-19 18:47:27,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-10-19 18:47:27,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-10-19 18:47:27,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:47:27,277 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-10-19 18:47:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-10-19 18:47:27,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-10-19 18:47:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-19 18:47:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-19 18:47:27,279 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 18:47:27,279 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-19 18:47:27,279 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:47:27,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-10-19 18:47:27,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:47:27,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:47:27,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:47:27,281 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:47:27,281 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:47:27,281 INFO L794 eck$LassoCheckResult]: Stem: 195#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L550 assume !(main_~length~0 < 1); 189#L550-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 190#L552 assume !(main_~fac~0 < 1); 196#L552-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 199#L555 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 191#L556-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 192#L556-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 193#L556-3 assume !(main_~i~0 < main_~length~0); 194#L556-4 main_~j~0 := 0; 197#L559-3 [2020-10-19 18:47:27,281 INFO L796 eck$LassoCheckResult]: Loop: 197#L559-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 198#L559-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 197#L559-3 [2020-10-19 18:47:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:27,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2020-10-19 18:47:27,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:27,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881311872] [2020-10-19 18:47:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:27,288 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:27,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968552526] [2020-10-19 18:47:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:27,342 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:27,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:27,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:27,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2020-10-19 18:47:27,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:27,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512670934] [2020-10-19 18:47:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:27,362 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:27,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927824567] [2020-10-19 18:47:27,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:27,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-19 18:47:27,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-19 18:47:27,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:27,408 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,412 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:27,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:27,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2020-10-19 18:47:27,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:47:27,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854979560] [2020-10-19 18:47:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:47:27,419 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-19 18:47:27,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790473571] [2020-10-19 18:47:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:47:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:27,460 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:47:27,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:47:27,479 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:47:28,610 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2020-10-19 18:47:28,831 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2020-10-19 18:47:28,933 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:47:28,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:47:28,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:47:28,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:47:28,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:47:28,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:28,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:47:28,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:47:28,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca-2.i_Iteration3_Lasso [2020-10-19 18:47:28,935 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:47:28,935 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:47:28,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:28,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:29,355 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-19 18:47:29,632 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2020-10-19 18:47:29,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:29,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:29,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:29,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:47:29,857 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2020-10-19 18:47:29,985 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-10-19 18:47:30,328 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-19 18:47:30,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:47:30,439 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:47:30,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,469 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) [2020-10-19 18:47:30,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:30,568 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:30,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,623 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 [2020-10-19 18:47:30,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:30,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:47:30,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:47:30,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:30,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:47:30,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:47:30,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:47:30,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:47:30,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,800 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,800 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:47:30,802 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) [2020-10-19 18:47:30,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:47:30,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:47:30,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:47:30,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:30,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:47:30,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:47:30,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:47:30,858 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-10-19 18:47:30,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:47:30,891 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-10-19 18:47:30,891 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-19 18:47:30,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:47:31,023 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-10-19 18:47:31,023 INFO L444 ModelExtractionUtils]: 27 out of 61 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:47:31,026 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:47:31,030 INFO L438 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2020-10-19 18:47:31,030 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:47:31,030 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_2, ULTIMATE.start_main_~arr2~0.offset) = -4*ULTIMATE.start_main_~j~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_2 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2020-10-19 18:47:31,141 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2020-10-19 18:47:31,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-10-19 18:47:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:47:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:31,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:47:31,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:47:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:47:31,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:47:31,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:47:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:47:31,236 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 [2020-10-19 18:47:31,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-10-19 18:47:31,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 15 states and 19 transitions. Complement of second has 5 states. [2020-10-19 18:47:31,279 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 [2020-10-19 18:47:31,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-19 18:47:31,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-10-19 18:47:31,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:47:31,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:31,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2020-10-19 18:47:31,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:31,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-19 18:47:31,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:47:31,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-19 18:47:31,284 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:47:31,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-19 18:47:31,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:47:31,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:47:31,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:47:31,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:47:31,285 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:47:31,285 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:47:31,285 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:47:31,285 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:47:31,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:47:31,286 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:47:31,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:47:31,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:47:31 BoogieIcfgContainer [2020-10-19 18:47:31,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:47:31,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:47:31,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:47:31,299 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:47:31,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:47:23" (3/4) ... [2020-10-19 18:47:31,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:47:31,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:47:31,308 INFO L168 Benchmark]: Toolchain (without parser) took 8692.30 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 262.1 MB). Free memory was 957.3 MB in the beginning and 1.2 GB in the end (delta: -219.0 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:47:31,309 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:47:31,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:47:31,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:47:31,317 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:47:31,319 INFO L168 Benchmark]: RCFGBuilder took 342.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:47:31,325 INFO L168 Benchmark]: BuchiAutomizer took 7658.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.4 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:47:31,326 INFO L168 Benchmark]: Witness Printer took 7.47 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:47:31,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 586.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -175.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 342.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7658.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 116.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.4 MB). Peak memory consumption was 41.5 MB. Max. memory is 11.5 GB. * Witness Printer took 7.47 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function -4 * j + unknown-#length-unknown[__builtin_alloca (fac*length*sizeof(int))] + -1 * arr2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 7.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 23 SDs, 0 SdLazy, 31 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital293 mio100 ax108 hnf98 lsp141 ukn48 mio100 lsp62 div129 bol100 ite100 ukn100 eq164 hnf93 smp85 dnf114 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 175ms VariablesStem: 10 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...