./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: 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/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:07:50,730 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:07:50,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:07:50,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:07:50,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:07:50,750 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:07:50,752 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:07:50,754 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:07:50,755 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:07:50,756 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:07:50,757 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:07:50,758 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:07:50,759 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:07:50,760 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:07:50,761 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:07:50,762 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:07:50,763 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:07:50,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:07:50,770 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:07:50,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:07:50,773 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:07:50,774 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:07:50,780 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:07:50,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:07:50,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:07:50,785 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:07:50,789 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:07:50,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:07:50,794 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:07:50,795 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:07:50,795 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:07:50,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:07:50,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:07:50,798 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:07:50,800 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:07:50,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:07:50,801 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:07:50,834 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:07:50,834 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:07:50,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:07:50,837 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:07:50,838 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:07:50,838 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:07:50,838 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:07:50,838 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:07:50,838 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:07:50,839 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:07:50,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:07:50,842 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:07:50,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:07:50,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:07:50,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:07:50,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:07:50,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:07:50,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:50,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:07:50,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:07:50,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:07:50,845 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:07:50,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:07:50,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:07:50,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(G ! overflow) ) 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 -> 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da [2018-11-28 23:07:50,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:07:50,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:07:50,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:07:50,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:07:50,933 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:07:50,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-11-28 23:07:50,998 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fec1ba9a/a88043451a774c0a82d2a3d2ec90f9f8/FLAGbd4fdb8b7 [2018-11-28 23:07:51,309 ERROR L413 mateJobChangeAdapter]: Error during toolchain job processing: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider$ToolchainDependency.access$0(UltimateCdtExternalSettingsProvider.java:86) at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider.getSettings(UltimateCdtExternalSettingsProvider.java:67) at org.eclipse.cdt.core.settings.model.extension.CExternalSettingProvider.getSettings(CExternalSettingProvider.java:45) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory$CExtensionSettingProviderDescriptor.getContainer(ExtensionContainerFactory.java:106) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory.createContainer(ExtensionContainerFactory.java:181) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:146) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:139) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.checkExternalSettingsChange(CExternalSettingsManager.java:683) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.processContainerChange(CExternalSettingsManager.java:500) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.access$3(CExternalSettingsManager.java:493) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$2.run(CExternalSettingsManager.java:613) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$5.run(CProjectDescriptionManager.java:523) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2241) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.runAtomic(CProjectDescriptionManager.java:519) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.access$2(CProjectDescriptionManager.java:517) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$4.run(CProjectDescriptionManager.java:498) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 23:07:51,529 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:07:51,530 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-11-28 23:07:51,536 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fec1ba9a/a88043451a774c0a82d2a3d2ec90f9f8/FLAGbd4fdb8b7 [2018-11-28 23:07:51,881 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fec1ba9a/a88043451a774c0a82d2a3d2ec90f9f8 [2018-11-28 23:07:51,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:07:51,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:07:51,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:51,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:07:51,892 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:07:51,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:51" (1/1) ... [2018-11-28 23:07:51,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5c2d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:51, skipping insertion in model container [2018-11-28 23:07:51,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:51" (1/1) ... [2018-11-28 23:07:51,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:07:51,922 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:07:52,105 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:52,110 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:07:52,130 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:52,148 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:07:52,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52 WrapperNode [2018-11-28 23:07:52,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:52,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:52,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:07:52,152 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:07:52,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:52,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:07:52,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:07:52,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:07:52,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (1/1) ... [2018-11-28 23:07:52,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:07:52,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:07:52,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:07:52,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:07:52,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:07:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:07:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:07:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:07:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:07:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:07:52,744 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:07:52,744 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:07:52,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:52 BoogieIcfgContainer [2018-11-28 23:07:52,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:07:52,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:07:52,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:07:52,752 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:07:52,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:07:51" (1/3) ... [2018-11-28 23:07:52,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cbc6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:52, skipping insertion in model container [2018-11-28 23:07:52,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:52" (2/3) ... [2018-11-28 23:07:52,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cbc6a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:52, skipping insertion in model container [2018-11-28 23:07:52,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:52" (3/3) ... [2018-11-28 23:07:52,759 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-11-28 23:07:52,773 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:07:52,782 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:07:52,812 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:07:52,850 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:07:52,851 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:07:52,851 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:07:52,852 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:07:52,852 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:07:52,852 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:07:52,852 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:07:52,852 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:07:52,852 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:07:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-28 23:07:52,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:07:52,891 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:52,894 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:52,896 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:52,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:52,901 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-11-28 23:07:52,903 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:52,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:52,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:52,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:52,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:53,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:53,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:07:53,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:07:53,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:07:53,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:07:53,095 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-11-28 23:07:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:53,362 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2018-11-28 23:07:53,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:07:53,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 23:07:53,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:53,374 INFO L225 Difference]: With dead ends: 46 [2018-11-28 23:07:53,375 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 23:07:53,378 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:07:53,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 23:07:53,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2018-11-28 23:07:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:07:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 23:07:53,415 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-28 23:07:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:53,415 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 23:07:53,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:07:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 23:07:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:07:53,416 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:53,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:53,417 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:53,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-11-28 23:07:53,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:53,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:53,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:53,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:53,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:53,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:53,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:07:53,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:07:53,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:07:53,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:07:53,515 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-28 23:07:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:53,842 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-28 23:07:53,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:07:53,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 23:07:53,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:53,844 INFO L225 Difference]: With dead ends: 29 [2018-11-28 23:07:53,845 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 23:07:53,846 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:07:53,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 23:07:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2018-11-28 23:07:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 23:07:53,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-28 23:07:53,851 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-28 23:07:53,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:53,851 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-28 23:07:53,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:07:53,851 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-28 23:07:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:07:53,853 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:53,853 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:53,854 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:53,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:53,854 INFO L82 PathProgramCache]: Analyzing trace with hash 865022446, now seen corresponding path program 1 times [2018-11-28 23:07:53,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:53,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:53,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:53,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:53,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:53,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:53,960 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:53,960 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:07:53,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:53,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:54,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:54,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 23:07:54,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-28 23:07:54,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 23:07:54,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:07:54,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:07:54,170 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 8 states. [2018-11-28 23:07:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:54,452 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-28 23:07:54,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:07:54,453 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 23:07:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:54,455 INFO L225 Difference]: With dead ends: 36 [2018-11-28 23:07:54,455 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 23:07:54,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:07:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 23:07:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 21. [2018-11-28 23:07:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-28 23:07:54,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-28 23:07:54,462 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2018-11-28 23:07:54,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:54,462 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-28 23:07:54,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 23:07:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-28 23:07:54,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:07:54,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:54,464 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:54,464 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:54,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash 865022638, now seen corresponding path program 1 times [2018-11-28 23:07:54,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:54,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:54,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:54,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:54,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:54,526 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:54,526 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:07:54,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:54,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:54,702 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:07:54,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-28 23:07:54,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 23:07:54,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:07:54,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:07:54,704 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2018-11-28 23:07:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:55,346 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-28 23:07:55,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 23:07:55,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 23:07:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:55,350 INFO L225 Difference]: With dead ends: 52 [2018-11-28 23:07:55,350 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 23:07:55,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2018-11-28 23:07:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 23:07:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-11-28 23:07:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 23:07:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-28 23:07:55,360 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 13 [2018-11-28 23:07:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:55,360 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-28 23:07:55,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 23:07:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-28 23:07:55,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:07:55,361 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:55,361 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:55,362 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:55,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:55,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517224, now seen corresponding path program 1 times [2018-11-28 23:07:55,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:55,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:55,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:55,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:55,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:55,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:55,440 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:07:55,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:55,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:55,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 23:07:55,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-11-28 23:07:55,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 23:07:55,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:07:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:07:55,555 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 7 states. [2018-11-28 23:07:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:55,629 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2018-11-28 23:07:55,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:07:55,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 23:07:55,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:55,633 INFO L225 Difference]: With dead ends: 35 [2018-11-28 23:07:55,633 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 23:07:55,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:07:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 23:07:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2018-11-28 23:07:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 23:07:55,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-11-28 23:07:55,640 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2018-11-28 23:07:55,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:55,641 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-11-28 23:07:55,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 23:07:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-28 23:07:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:07:55,642 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:55,642 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:55,642 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:55,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:55,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517416, now seen corresponding path program 1 times [2018-11-28 23:07:55,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:55,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:55,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:55,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:55,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:55,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:55,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:55,740 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:07:55,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:55,765 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:55,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 23:07:55,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-28 23:07:55,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 23:07:55,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 23:07:55,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:07:55,875 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 8 states. [2018-11-28 23:07:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:56,060 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-11-28 23:07:56,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:07:56,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 23:07:56,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:56,062 INFO L225 Difference]: With dead ends: 47 [2018-11-28 23:07:56,062 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 23:07:56,062 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:07:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 23:07:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 24. [2018-11-28 23:07:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 23:07:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-11-28 23:07:56,069 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2018-11-28 23:07:56,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:56,069 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-11-28 23:07:56,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 23:07:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-28 23:07:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:07:56,070 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:56,070 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:56,071 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:56,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:56,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1987862754, now seen corresponding path program 1 times [2018-11-28 23:07:56,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:56,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:56,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:56,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:56,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:56,183 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:07:56,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:07:56,183 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:07:56,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:56,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:07:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:56,418 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:07:56,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-11-28 23:07:56,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 23:07:56,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 23:07:56,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:07:56,421 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2018-11-28 23:07:57,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:57,349 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-11-28 23:07:57,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 23:07:57,353 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-11-28 23:07:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:57,354 INFO L225 Difference]: With dead ends: 45 [2018-11-28 23:07:57,354 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:07:57,358 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2018-11-28 23:07:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:07:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:07:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:07:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:07:57,359 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 23:07:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:57,361 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:07:57,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 23:07:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:07:57,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:07:57,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:07:57,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:07:57,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:07:57,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:07:57,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:07:57,631 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 11 [2018-11-28 23:07:57,634 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:07:57,634 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:07:57,634 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:07:57,634 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:07:57,635 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 28) no Hoare annotation was computed. [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 23:07:57,635 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-28 23:07:57,636 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-28 23:07:57,636 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-28 23:07:57,636 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 28) no Hoare annotation was computed. [2018-11-28 23:07:57,636 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 28) the Hoare annotation is: true [2018-11-28 23:07:57,636 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 23:07:57,636 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-28 23:07:57,637 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-11-28 23:07:57,637 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 26) no Hoare annotation was computed. [2018-11-28 23:07:57,637 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (and (<= 1 main_~y1~0) (<= 0 main_~y2~0) (<= main_~y2~0 2147483647) (<= main_~y1~0 2147483647)) [2018-11-28 23:07:57,637 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 26) no Hoare annotation was computed. [2018-11-28 23:07:57,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:07:57 BoogieIcfgContainer [2018-11-28 23:07:57,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:07:57,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:07:57,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:07:57,651 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:07:57,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:52" (3/4) ... [2018-11-28 23:07:57,655 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:07:57,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:07:57,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:07:57,667 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 23:07:57,667 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:07:57,667 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:07:57,711 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:07:57,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:07:57,712 INFO L168 Benchmark]: Toolchain (without parser) took 5826.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.9 MB in the beginning and 884.4 MB in the end (delta: 61.5 MB). Peak memory consumption was 205.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:57,713 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:57,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.15 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:57,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:57,717 INFO L168 Benchmark]: Boogie Preprocessor took 33.81 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:57,717 INFO L168 Benchmark]: RCFGBuilder took 525.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:57,718 INFO L168 Benchmark]: TraceAbstraction took 4903.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.2 MB in the end (delta: 227.5 MB). Peak memory consumption was 227.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:57,719 INFO L168 Benchmark]: Witness Printer took 60.51 ms. Allocated memory is still 1.2 GB. Free memory was 891.2 MB in the beginning and 884.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:57,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.15 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.03 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.81 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 525.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4903.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.2 MB in the end (delta: 227.5 MB). Peak memory consumption was 227.5 MB. Max. memory is 11.5 GB. * Witness Printer took 60.51 ms. Allocated memory is still 1.2 GB. Free memory was 891.2 MB in the beginning and 884.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((1 <= y1 && 0 <= y2) && y2 <= 2147483647) && y1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 4.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 181 SDslu, 126 SDs, 0 SdLazy, 430 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 12 NumberOfFragments, 18 HoareAnnotationTreeSize, 5 FomulaSimplifications, 378 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 8104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 25/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...