./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/java_Nested-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/java_Nested-alloca.i -s /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer --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 6441f2629f7ca5357ff69069fc5c217332d52665 .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:16,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:16,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:16,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:16,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:16,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:16,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:16,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:16,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:16,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:16,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:16,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:16,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:16,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:16,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:16,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:16,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:16,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:16,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:16,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:16,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:16,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:16,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:16,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:16,792 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:16,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:16,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:16,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:16,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:16,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:16,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:16,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:16,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:16,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:16,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:16,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:16,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:16,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:16,800 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:16,801 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:16,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:16,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:57:16,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:16,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:16,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:16,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:16,818 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:16,818 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:57:16,818 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:57:16,819 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:57:16,819 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:57:16,819 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:57:16,819 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:57:16,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:16,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:16,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:16,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:16,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:57:16,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:57:16,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:57:16,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:16,821 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:57:16,821 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:16,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:57:16,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:16,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:16,822 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:57:16,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:16,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:16,823 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:57:16,823 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:57:16,824 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer 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 -> 6441f2629f7ca5357ff69069fc5c217332d52665 [2019-10-22 08:57:16,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:16,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:16,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:16,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:16,871 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:16,872 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/java_Nested-alloca.i [2019-10-22 08:57:16,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/data/2feb4b981/678639fe4abe450caf41ecf476d4d2a9/FLAGac1c3fb14 [2019-10-22 08:57:17,346 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:17,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/sv-benchmarks/c/termination-memory-alloca/java_Nested-alloca.i [2019-10-22 08:57:17,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/data/2feb4b981/678639fe4abe450caf41ecf476d4d2a9/FLAGac1c3fb14 [2019-10-22 08:57:17,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/data/2feb4b981/678639fe4abe450caf41ecf476d4d2a9 [2019-10-22 08:57:17,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:17,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:17,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:17,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:17,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:17,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460fbca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17, skipping insertion in model container [2019-10-22 08:57:17,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,686 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:17,730 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:18,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:18,074 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:18,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:18,164 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:18,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18 WrapperNode [2019-10-22 08:57:18,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:18,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:18,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:18,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:18,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:18,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:18,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:18,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:18,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... [2019-10-22 08:57:18,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:18,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:18,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:18,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:18,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/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 [2019-10-22 08:57:18,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:18,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:18,628 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:18,629 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:57:18,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:18 BoogieIcfgContainer [2019-10-22 08:57:18,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:18,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:57:18,631 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:57:18,634 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:57:18,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:18,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:57:17" (1/3) ... [2019-10-22 08:57:18,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbf01a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:18, skipping insertion in model container [2019-10-22 08:57:18,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:18,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:18" (2/3) ... [2019-10-22 08:57:18,637 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbf01a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:57:18, skipping insertion in model container [2019-10-22 08:57:18,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:57:18,637 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:18" (3/3) ... [2019-10-22 08:57:18,639 INFO L371 chiAutomizerObserver]: Analyzing ICFG java_Nested-alloca.i [2019-10-22 08:57:18,687 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:57:18,687 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:57:18,687 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:57:18,688 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:18,688 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:18,688 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:57:18,688 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:18,688 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:57:18,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 08:57:18,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:57:18,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:18,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:18,737 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:18,739 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:57:18,739 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:57:18,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 08:57:18,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:57:18,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:18,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:18,742 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:18,742 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:57:18,751 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem10, main_#t~mem11, main_#t~mem8, main_#t~mem9, main_#t~mem5, main_#t~post6, main_#t~mem7, main_#t~mem12, main_~i~0.base, main_~i~0.offset, main_~j~0.base, main_~j~0.offset, main_~c~0.base, main_~c~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~i~0.base, main_~i~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~j~0.base, main_~j~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~c~0.base, main_~c~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(0, main_~c~0.base, main_~c~0.offset, 4);call write~int(0, main_~i~0.base, main_~i~0.offset, 4); 4#L552-4true [2019-10-22 08:57:18,752 INFO L793 eck$LassoCheckResult]: Loop: 4#L552-4true call main_#t~mem7 := read~int(main_~i~0.base, main_~i~0.offset, 4); 9#L552-1true assume !!(main_#t~mem7 < 10);havoc main_#t~mem7;call write~int(3, main_~j~0.base, main_~j~0.offset, 4); 13#L553-4true assume !true; 14#L552-3true call main_#t~mem5 := read~int(main_~i~0.base, main_~i~0.offset, 4);main_#t~post6 := main_#t~mem5;call write~int(1 + main_#t~post6, main_~i~0.base, main_~i~0.offset, 4);havoc main_#t~mem5;havoc main_#t~post6; 4#L552-4true [2019-10-22 08:57:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:18,758 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-10-22 08:57:18,767 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:18,767 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819776254] [2019-10-22 08:57:18,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,768 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:18,914 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:18,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:18,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1113608, now seen corresponding path program 1 times [2019-10-22 08:57:18,916 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:18,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786961224] [2019-10-22 08:57:18,916 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,916 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:18,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786961224] [2019-10-22 08:57:18,955 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:18,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:18,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166972796] [2019-10-22 08:57:18,961 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:57:18,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:18,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:18,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:18,981 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-10-22 08:57:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:18,989 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-10-22 08:57:18,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:18,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2019-10-22 08:57:18,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:57:18,996 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2019-10-22 08:57:18,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-10-22 08:57:18,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-10-22 08:57:18,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2019-10-22 08:57:18,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:18,999 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-10-22 08:57:19,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2019-10-22 08:57:19,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-10-22 08:57:19,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 08:57:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-10-22 08:57:19,023 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-10-22 08:57:19,023 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-10-22 08:57:19,023 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:57:19,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2019-10-22 08:57:19,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-10-22 08:57:19,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:19,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:19,024 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:19,024 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-10-22 08:57:19,024 INFO L791 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 32#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem10, main_#t~mem11, main_#t~mem8, main_#t~mem9, main_#t~mem5, main_#t~post6, main_#t~mem7, main_#t~mem12, main_~i~0.base, main_~i~0.offset, main_~j~0.base, main_~j~0.offset, main_~c~0.base, main_~c~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~i~0.base, main_~i~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~j~0.base, main_~j~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~c~0.base, main_~c~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(0, main_~c~0.base, main_~c~0.offset, 4);call write~int(0, main_~i~0.base, main_~i~0.offset, 4); 33#L552-4 [2019-10-22 08:57:19,025 INFO L793 eck$LassoCheckResult]: Loop: 33#L552-4 call main_#t~mem7 := read~int(main_~i~0.base, main_~i~0.offset, 4); 34#L552-1 assume !!(main_#t~mem7 < 10);havoc main_#t~mem7;call write~int(3, main_~j~0.base, main_~j~0.offset, 4); 39#L553-4 call main_#t~mem9 := read~int(main_~j~0.base, main_~j~0.offset, 4); 36#L553-1 assume !(main_#t~mem9 < 12);havoc main_#t~mem9; 37#L552-3 call main_#t~mem5 := read~int(main_~i~0.base, main_~i~0.offset, 4);main_#t~post6 := main_#t~mem5;call write~int(1 + main_#t~post6, main_~i~0.base, main_~i~0.offset, 4);havoc main_#t~mem5;havoc main_#t~post6; 33#L552-4 [2019-10-22 08:57:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,025 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2019-10-22 08:57:19,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121891023] [2019-10-22 08:57:19,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:19,067 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,068 INFO L82 PathProgramCache]: Analyzing trace with hash 34512977, now seen corresponding path program 1 times [2019-10-22 08:57:19,068 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922636804] [2019-10-22 08:57:19,068 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:19,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922636804] [2019-10-22 08:57:19,119 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:19,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:19,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763825090] [2019-10-22 08:57:19,120 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:57:19,120 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:19,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:19,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:19,121 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-10-22 08:57:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:19,171 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-10-22 08:57:19,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:19,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2019-10-22 08:57:19,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-10-22 08:57:19,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 11 transitions. [2019-10-22 08:57:19,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-10-22 08:57:19,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-10-22 08:57:19,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2019-10-22 08:57:19,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:57:19,174 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-10-22 08:57:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2019-10-22 08:57:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-10-22 08:57:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-10-22 08:57:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-10-22 08:57:19,175 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-10-22 08:57:19,176 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-10-22 08:57:19,176 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:57:19,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2019-10-22 08:57:19,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-10-22 08:57:19,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:57:19,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:57:19,182 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-10-22 08:57:19,182 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:19,183 INFO L791 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 59#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~mem10, main_#t~mem11, main_#t~mem8, main_#t~mem9, main_#t~mem5, main_#t~post6, main_#t~mem7, main_#t~mem12, main_~i~0.base, main_~i~0.offset, main_~j~0.base, main_~j~0.offset, main_~c~0.base, main_~c~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~i~0.base, main_~i~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~j~0.base, main_~j~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnStack(4);main_~c~0.base, main_~c~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call write~int(0, main_~c~0.base, main_~c~0.offset, 4);call write~int(0, main_~i~0.base, main_~i~0.offset, 4); 60#L552-4 [2019-10-22 08:57:19,183 INFO L793 eck$LassoCheckResult]: Loop: 60#L552-4 call main_#t~mem7 := read~int(main_~i~0.base, main_~i~0.offset, 4); 61#L552-1 assume !!(main_#t~mem7 < 10);havoc main_#t~mem7;call write~int(3, main_~j~0.base, main_~j~0.offset, 4); 65#L553-4 call main_#t~mem9 := read~int(main_~j~0.base, main_~j~0.offset, 4); 63#L553-1 assume !!(main_#t~mem9 < 12);havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~j~0.base, main_~j~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~j~0.base, main_~j~0.offset, 4);havoc main_#t~mem10;call main_#t~mem11 := read~int(main_~c~0.base, main_~c~0.offset, 4);call write~int(1 + main_#t~mem11, main_~c~0.base, main_~c~0.offset, 4);havoc main_#t~mem11; 64#L553-3 call main_#t~mem8 := read~int(main_~j~0.base, main_~j~0.offset, 4);call write~int(2 + main_#t~mem8, main_~j~0.base, main_~j~0.offset, 4);havoc main_#t~mem8; 66#L553-4 call main_#t~mem9 := read~int(main_~j~0.base, main_~j~0.offset, 4); 68#L553-1 assume !(main_#t~mem9 < 12);havoc main_#t~mem9; 67#L552-3 call main_#t~mem5 := read~int(main_~i~0.base, main_~i~0.offset, 4);main_#t~post6 := main_#t~mem5;call write~int(1 + main_#t~post6, main_~i~0.base, main_~i~0.offset, 4);havoc main_#t~mem5;havoc main_#t~post6; 60#L552-4 [2019-10-22 08:57:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,183 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2019-10-22 08:57:19,183 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135581146] [2019-10-22 08:57:19,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,184 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:19,214 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1680656940, now seen corresponding path program 1 times [2019-10-22 08:57:19,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877470400] [2019-10-22 08:57:19,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:19,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877470400] [2019-10-22 08:57:19,392 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746309510] [2019-10-22 08:57:19,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_099e3716-7c3b-4312-bf6f-8f57cb6eec41/bin/uautomizer/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 [2019-10-22 08:57:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-22 08:57:19,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:19,518 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:57:19,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:57:19,522 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:19,522 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:57:19,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2019-10-22 08:57:19,582 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:57:19,582 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 124 [2019-10-22 08:57:19,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,624 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,630 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:19,642 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-22 08:57:19,649 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkFeasibilityAndComputeInterpolants(LassoCheck.java:921) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopFeasibility(LassoCheck.java:887) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:806) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:458) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: expected NNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:236) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:74) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:256) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) ... 21 more [2019-10-22 08:57:19,653 INFO L168 Benchmark]: Toolchain (without parser) took 1985.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.2 MB in the beginning and 1.0 GB in the end (delta: -81.8 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:19,654 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:19,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:19,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:19,659 INFO L168 Benchmark]: Boogie Preprocessor took 39.39 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. [2019-10-22 08:57:19,660 INFO L168 Benchmark]: RCFGBuilder took 370.54 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:19,660 INFO L168 Benchmark]: BuchiAutomizer took 1021.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:19,663 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 496.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -190.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 370.54 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: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1021.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.4 MB). Peak memory consumption was 80.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: expected NNF de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: java.lang.UnsupportedOperationException: expected NNF: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:307) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...