./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/sumt3.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 ../sv-benchmarks/c/loops-crafted-1/sumt3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d3225d765ae2a54aaa6feb46ff64fca37775cb ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 ../sv-benchmarks/c/loops-crafted-1/sumt3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d3225d765ae2a54aaa6feb46ff64fca37775cb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:23:51,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:23:51,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:23:51,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:23:51,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:23:51,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:23:51,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:23:51,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:23:51,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:23:51,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:23:51,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:23:51,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:23:51,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:23:51,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:23:51,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:23:51,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:23:51,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:23:51,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:23:51,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:23:51,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:23:51,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:23:51,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:23:51,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:23:51,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:23:51,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:23:51,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:23:51,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:23:51,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:23:51,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:23:51,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:23:51,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:23:51,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:23:51,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:23:51,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:23:51,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:23:51,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:23:51,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:23:51,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:23:51,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:23:51,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:23:51,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:23:51,751 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:23:51,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:23:51,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:23:51,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:23:51,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:23:51,780 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:23:51,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:23:51,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:23:51,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:23:51,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:23:51,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:23:51,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:23:51,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:23:51,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:23:51,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:23:51,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:23:51,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:23:51,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:23:51,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:23:51,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:23:51,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:23:51,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:23:51,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:23:51,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:23:51,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:23:51,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:23:51,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:23:51,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:23:51,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:23:51,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:23:51,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d3225d765ae2a54aaa6feb46ff64fca37775cb [2020-07-28 18:23:52,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:23:52,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:23:52,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:23:52,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:23:52,166 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:23:52,167 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt3.c [2020-07-28 18:23:52,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1985464/4c50b277ec784b67b6fe9c1429071112/FLAG007b762dc [2020-07-28 18:23:52,671 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:23:52,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt3.c [2020-07-28 18:23:52,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1985464/4c50b277ec784b67b6fe9c1429071112/FLAG007b762dc [2020-07-28 18:23:53,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1985464/4c50b277ec784b67b6fe9c1429071112 [2020-07-28 18:23:53,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:23:53,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:23:53,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:23:53,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:23:53,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:23:53,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cb0c87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53, skipping insertion in model container [2020-07-28 18:23:53,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:23:53,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:23:53,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:23:53,372 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:23:53,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:23:53,409 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:23:53,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53 WrapperNode [2020-07-28 18:23:53,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:23:53,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:23:53,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:23:53,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:23:53,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:23:53,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:23:53,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:23:53,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:23:53,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (1/1) ... [2020-07-28 18:23:53,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:23:53,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:23:53,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:23:53,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:23:53,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (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 [2020-07-28 18:23:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:23:53,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:23:53,836 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:23:53,837 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:23:53,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:23:53 BoogieIcfgContainer [2020-07-28 18:23:53,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:23:53,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:23:53,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:23:53,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:23:53,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:23:53" (1/3) ... [2020-07-28 18:23:53,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd35c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:23:53, skipping insertion in model container [2020-07-28 18:23:53,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:53" (2/3) ... [2020-07-28 18:23:53,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd35c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:23:53, skipping insertion in model container [2020-07-28 18:23:53,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:23:53" (3/3) ... [2020-07-28 18:23:53,853 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2020-07-28 18:23:53,870 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:23:53,880 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:23:53,896 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:23:53,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:23:53,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:23:53,926 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:23:53,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:23:53,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:23:53,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:23:53,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:23:53,927 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:23:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-28 18:23:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:23:53,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:23:53,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:23:53,952 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:23:53,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:23:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1807458888, now seen corresponding path program 1 times [2020-07-28 18:23:53,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:23:53,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053735034] [2020-07-28 18:23:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:23:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:54,116 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} ~SIZE~0 := 20000001; {18#true} is VALID [2020-07-28 18:23:54,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {18#true} is VALID [2020-07-28 18:23:54,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#true} assume !!(main_~n~0 % 4294967296 <= ~SIZE~0 % 4294967296);main_~i~0 := 0;main_~j~0 := 0;main_~k~0 := 0;main_~l~0 := 0; {18#true} is VALID [2020-07-28 18:23:54,120 INFO L280 TraceCheckUtils]: 3: Hoare triple {18#true} assume !true; {19#false} is VALID [2020-07-28 18:23:54,120 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#false} __VERIFIER_assert_#in~cond := (if (main_~i~0 + main_~j~0 + main_~k~0) % 4294967296 == main_~l~0 % 4294967296 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {19#false} is VALID [2020-07-28 18:23:54,120 INFO L280 TraceCheckUtils]: 5: Hoare triple {19#false} assume 0 == __VERIFIER_assert_~cond; {19#false} is VALID [2020-07-28 18:23:54,121 INFO L280 TraceCheckUtils]: 6: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 18:23:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:23:54,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053735034] [2020-07-28 18:23:54,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:23:54,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:23:54,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115113563] [2020-07-28 18:23:54,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:23:54,134 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:23:54,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:23:54,166 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:23:54,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:23:54,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:23:54,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:23:54,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:23:54,179 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-07-28 18:23:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:54,244 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-07-28 18:23:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:23:54,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:23:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:23:54,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:23:54,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 18:23:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:23:54,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 18:23:54,256 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 28 transitions. [2020-07-28 18:23:54,314 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:23:54,325 INFO L225 Difference]: With dead ends: 23 [2020-07-28 18:23:54,325 INFO L226 Difference]: Without dead ends: 11 [2020-07-28 18:23:54,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:23:54,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-07-28 18:23:54,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-07-28 18:23:54,358 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:23:54,359 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:54,360 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:54,361 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:54,363 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-07-28 18:23:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:54,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:23:54,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:23:54,365 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:54,365 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:54,367 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-07-28 18:23:54,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:54,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:23:54,367 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:23:54,368 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:23:54,368 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:23:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-28 18:23:54,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-07-28 18:23:54,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2020-07-28 18:23:54,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:23:54,371 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-28 18:23:54,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:23:54,372 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:54,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:23:54,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:23:54,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:23:54,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:23:54,373 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:23:54,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:23:54,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1806982232, now seen corresponding path program 1 times [2020-07-28 18:23:54,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:23:54,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688960946] [2020-07-28 18:23:54,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:23:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:54,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:23:54,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:317) 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) [2020-07-28 18:23:54,441 INFO L168 Benchmark]: Toolchain (without parser) took 1333.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,442 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:23:54,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.88 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,445 INFO L168 Benchmark]: Boogie Preprocessor took 24.10 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,446 INFO L168 Benchmark]: RCFGBuilder took 308.14 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,447 INFO L168 Benchmark]: TraceAbstraction took 595.17 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:23:54,453 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.88 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.8 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 96.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.10 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 308.14 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 595.17 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:23:56,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:23:56,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:23:56,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:23:56,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:23:56,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:23:56,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:23:56,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:23:56,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:23:56,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:23:56,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:23:56,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:23:56,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:23:56,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:23:56,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:23:56,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:23:56,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:23:56,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:23:56,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:23:56,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:23:56,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:23:56,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:23:56,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:23:56,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:23:56,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:23:56,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:23:56,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:23:56,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:23:56,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:23:56,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:23:56,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:23:56,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:23:56,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:23:56,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:23:56,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:23:56,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:23:56,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:23:56,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:23:56,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:23:56,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:23:56,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:23:56,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 18:23:56,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:23:56,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:23:56,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:23:56,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:23:56,477 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:23:56,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:23:56,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:23:56,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:23:56,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:23:56,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:23:56,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:23:56,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:23:56,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 18:23:56,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 18:23:56,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:23:56,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:23:56,481 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:23:56,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:23:56,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:23:56,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:23:56,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:23:56,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:23:56,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:23:56,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:23:56,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:23:56,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:23:56,484 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 18:23:56,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 18:23:56,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:23:56,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:23:56,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 18:23:56,485 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d3225d765ae2a54aaa6feb46ff64fca37775cb [2020-07-28 18:23:56,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:23:56,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:23:56,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:23:56,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:23:56,805 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:23:56,806 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt3.c [2020-07-28 18:23:56,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76f5f479/095f452da0db43aa8e6c8930156e1c04/FLAG36865ab68 [2020-07-28 18:23:57,273 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:23:57,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt3.c [2020-07-28 18:23:57,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76f5f479/095f452da0db43aa8e6c8930156e1c04/FLAG36865ab68 [2020-07-28 18:23:57,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e76f5f479/095f452da0db43aa8e6c8930156e1c04 [2020-07-28 18:23:57,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:23:57,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:23:57,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:23:57,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:23:57,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:23:57,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:57,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fcb1f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57, skipping insertion in model container [2020-07-28 18:23:57,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:57,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:23:57,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:23:57,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:23:57,927 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:23:57,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:23:57,964 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:23:57,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57 WrapperNode [2020-07-28 18:23:57,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:23:57,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:23:57,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:23:57,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:23:57,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:57,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:23:58,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:23:58,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:23:58,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:23:58,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (1/1) ... [2020-07-28 18:23:58,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:23:58,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:23:58,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:23:58,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:23:58,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (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 [2020-07-28 18:23:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:23:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:23:58,491 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:23:58,491 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:23:58,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:23:58 BoogieIcfgContainer [2020-07-28 18:23:58,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:23:58,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:23:58,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:23:58,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:23:58,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:23:57" (1/3) ... [2020-07-28 18:23:58,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660b2e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:23:58, skipping insertion in model container [2020-07-28 18:23:58,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:23:57" (2/3) ... [2020-07-28 18:23:58,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660b2e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:23:58, skipping insertion in model container [2020-07-28 18:23:58,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:23:58" (3/3) ... [2020-07-28 18:23:58,505 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2020-07-28 18:23:58,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:23:58,524 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:23:58,539 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:23:58,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:23:58,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:23:58,568 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:23:58,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:23:58,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:23:58,569 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:23:58,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:23:58,569 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:23:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-28 18:23:58,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:23:58,587 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:23:58,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:23:58,588 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:23:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:23:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1807458888, now seen corresponding path program 1 times [2020-07-28 18:23:58,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 18:23:58,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740652481] [2020-07-28 18:23:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 18:23:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:58,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 18:23:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:58,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:23:58,715 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} ~SIZE~0 := 20000001bv32; {18#true} is VALID [2020-07-28 18:23:58,716 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {18#true} is VALID [2020-07-28 18:23:58,716 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {18#true} is VALID [2020-07-28 18:23:58,717 INFO L280 TraceCheckUtils]: 3: Hoare triple {18#true} assume !true; {19#false} is VALID [2020-07-28 18:23:58,718 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#false} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {19#false} is VALID [2020-07-28 18:23:58,718 INFO L280 TraceCheckUtils]: 5: Hoare triple {19#false} assume 0bv32 == __VERIFIER_assert_~cond; {19#false} is VALID [2020-07-28 18:23:58,719 INFO L280 TraceCheckUtils]: 6: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 18:23:58,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:23:58,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 18:23:58,737 INFO L280 TraceCheckUtils]: 6: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 18:23:58,737 INFO L280 TraceCheckUtils]: 5: Hoare triple {19#false} assume 0bv32 == __VERIFIER_assert_~cond; {19#false} is VALID [2020-07-28 18:23:58,737 INFO L280 TraceCheckUtils]: 4: Hoare triple {19#false} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {19#false} is VALID [2020-07-28 18:23:58,739 INFO L280 TraceCheckUtils]: 3: Hoare triple {18#true} assume !true; {19#false} is VALID [2020-07-28 18:23:58,739 INFO L280 TraceCheckUtils]: 2: Hoare triple {18#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {18#true} is VALID [2020-07-28 18:23:58,739 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {18#true} is VALID [2020-07-28 18:23:58,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} ~SIZE~0 := 20000001bv32; {18#true} is VALID [2020-07-28 18:23:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:23:58,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740652481] [2020-07-28 18:23:58,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:23:58,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 18:23:58,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852178652] [2020-07-28 18:23:58,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:23:58,750 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:23:58,754 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:23:58,779 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:23:58,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:23:58,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 18:23:58,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:23:58,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:23:58,789 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-07-28 18:23:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:58,877 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2020-07-28 18:23:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:23:58,877 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:23:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:23:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:23:58,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 18:23:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:23:58,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 28 transitions. [2020-07-28 18:23:58,888 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 28 transitions. [2020-07-28 18:23:59,018 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:23:59,034 INFO L225 Difference]: With dead ends: 23 [2020-07-28 18:23:59,035 INFO L226 Difference]: Without dead ends: 11 [2020-07-28 18:23:59,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:23:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-07-28 18:23:59,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-07-28 18:23:59,079 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:23:59,080 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:59,081 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:59,081 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:59,088 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-07-28 18:23:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:59,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:23:59,088 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:23:59,089 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:59,089 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2020-07-28 18:23:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:23:59,094 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-07-28 18:23:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:59,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:23:59,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:23:59,095 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:23:59,098 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:23:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-28 18:23:59,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-07-28 18:23:59,102 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2020-07-28 18:23:59,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:23:59,103 INFO L479 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-28 18:23:59,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:23:59,104 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-07-28 18:23:59,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:23:59,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:23:59,106 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:23:59,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 18:23:59,321 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:23:59,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:23:59,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1806982232, now seen corresponding path program 1 times [2020-07-28 18:23:59,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 18:23:59,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712433962] [2020-07-28 18:23:59,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 18:23:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:59,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-28 18:23:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:23:59,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:23:59,460 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#true} ~SIZE~0 := 20000001bv32; {120#true} is VALID [2020-07-28 18:23:59,460 INFO L280 TraceCheckUtils]: 1: Hoare triple {120#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {120#true} is VALID [2020-07-28 18:23:59,462 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {131#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:23:59,463 INFO L280 TraceCheckUtils]: 3: Hoare triple {131#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} assume !~bvult32(main_~l~0, main_~n~0); {131#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:23:59,464 INFO L280 TraceCheckUtils]: 4: Hoare triple {131#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {138#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 18:23:59,465 INFO L280 TraceCheckUtils]: 5: Hoare triple {138#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {121#false} is VALID [2020-07-28 18:23:59,466 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#false} assume !false; {121#false} is VALID [2020-07-28 18:23:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:23:59,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 18:23:59,564 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#false} assume !false; {121#false} is VALID [2020-07-28 18:23:59,565 INFO L280 TraceCheckUtils]: 5: Hoare triple {148#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {121#false} is VALID [2020-07-28 18:23:59,573 INFO L280 TraceCheckUtils]: 4: Hoare triple {152#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {148#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 18:23:59,574 INFO L280 TraceCheckUtils]: 3: Hoare triple {152#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} assume !~bvult32(main_~l~0, main_~n~0); {152#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is VALID [2020-07-28 18:23:59,575 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {152#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is VALID [2020-07-28 18:23:59,576 INFO L280 TraceCheckUtils]: 1: Hoare triple {120#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {120#true} is VALID [2020-07-28 18:23:59,576 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#true} ~SIZE~0 := 20000001bv32; {120#true} is VALID [2020-07-28 18:23:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:23:59,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712433962] [2020-07-28 18:23:59,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:23:59,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 18:23:59,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280394365] [2020-07-28 18:23:59,580 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-07-28 18:23:59,580 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:23:59,581 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 18:23:59,601 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:23:59,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 18:23:59,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 18:23:59,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 18:23:59,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 18:23:59,602 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 6 states. [2020-07-28 18:24:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:00,065 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-07-28 18:24:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:24:00,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2020-07-28 18:24:00,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:24:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:24:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 18:24:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 18:24:00,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2020-07-28 18:24:00,072 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 29 transitions. [2020-07-28 18:24:00,252 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:24:00,254 INFO L225 Difference]: With dead ends: 23 [2020-07-28 18:24:00,254 INFO L226 Difference]: Without dead ends: 13 [2020-07-28 18:24:00,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 18:24:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-28 18:24:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-07-28 18:24:00,263 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:24:00,264 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2020-07-28 18:24:00,264 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-28 18:24:00,264 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-28 18:24:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:00,266 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-07-28 18:24:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-07-28 18:24:00,267 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:24:00,267 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:24:00,267 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-28 18:24:00,267 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-28 18:24:00,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:00,269 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-07-28 18:24:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-07-28 18:24:00,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:24:00,269 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:24:00,270 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:24:00,270 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:24:00,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-28 18:24:00,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-07-28 18:24:00,271 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2020-07-28 18:24:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:24:00,272 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-07-28 18:24:00,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 18:24:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-07-28 18:24:00,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 18:24:00,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:24:00,273 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:24:00,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 18:24:00,474 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:24:00,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:24:00,475 INFO L82 PathProgramCache]: Analyzing trace with hash 83295881, now seen corresponding path program 1 times [2020-07-28 18:24:00,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 18:24:00,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78558483] [2020-07-28 18:24:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-07-28 18:24:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:24:00,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 18:24:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:24:00,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:24:00,665 INFO L280 TraceCheckUtils]: 0: Hoare triple {233#true} ~SIZE~0 := 20000001bv32; {233#true} is VALID [2020-07-28 18:24:00,665 INFO L280 TraceCheckUtils]: 1: Hoare triple {233#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {233#true} is VALID [2020-07-28 18:24:00,666 INFO L280 TraceCheckUtils]: 2: Hoare triple {233#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {244#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:24:00,667 INFO L280 TraceCheckUtils]: 3: Hoare triple {244#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} assume !!~bvult32(main_~l~0, main_~n~0); {244#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} is VALID [2020-07-28 18:24:00,669 INFO L280 TraceCheckUtils]: 4: Hoare triple {244#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~i~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0))} assume 0bv32 == ~bvurem32(main_~l~0, 3bv32);main_~i~0 := ~bvadd32(1bv32, main_~i~0); {251#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} is VALID [2020-07-28 18:24:00,670 INFO L280 TraceCheckUtils]: 5: Hoare triple {251#(and (= (_ bv0 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} main_~l~0 := ~bvadd32(1bv32, main_~l~0); {255#(and (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv1 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} is VALID [2020-07-28 18:24:00,671 INFO L280 TraceCheckUtils]: 6: Hoare triple {255#(and (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv1 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} assume !~bvult32(main_~l~0, main_~n~0); {255#(and (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv1 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} is VALID [2020-07-28 18:24:00,672 INFO L280 TraceCheckUtils]: 7: Hoare triple {255#(and (= (_ bv0 32) ULTIMATE.start_main_~j~0) (= (_ bv1 32) ULTIMATE.start_main_~l~0) (= (_ bv0 32) ULTIMATE.start_main_~k~0) (= (_ bv1 32) ULTIMATE.start_main_~i~0))} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {262#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 18:24:00,673 INFO L280 TraceCheckUtils]: 8: Hoare triple {262#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {234#false} is VALID [2020-07-28 18:24:00,674 INFO L280 TraceCheckUtils]: 9: Hoare triple {234#false} assume !false; {234#false} is VALID [2020-07-28 18:24:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:24:00,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 18:24:27,026 INFO L280 TraceCheckUtils]: 9: Hoare triple {234#false} assume !false; {234#false} is VALID [2020-07-28 18:24:27,027 INFO L280 TraceCheckUtils]: 8: Hoare triple {272#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {234#false} is VALID [2020-07-28 18:24:27,028 INFO L280 TraceCheckUtils]: 7: Hoare triple {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} __VERIFIER_assert_#in~cond := (if ~bvadd32(~bvadd32(main_~i~0, main_~j~0), main_~k~0) == main_~l~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {272#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 18:24:27,029 INFO L280 TraceCheckUtils]: 6: Hoare triple {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} assume !~bvult32(main_~l~0, main_~n~0); {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is VALID [2020-07-28 18:24:29,085 INFO L280 TraceCheckUtils]: 5: Hoare triple {283#(= (bvadd ULTIMATE.start_main_~l~0 (_ bv1 32)) (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0))} main_~l~0 := ~bvadd32(1bv32, main_~l~0); {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is UNKNOWN [2020-07-28 18:24:31,094 INFO L280 TraceCheckUtils]: 4: Hoare triple {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} assume 0bv32 == ~bvurem32(main_~l~0, 3bv32);main_~i~0 := ~bvadd32(1bv32, main_~i~0); {283#(= (bvadd ULTIMATE.start_main_~l~0 (_ bv1 32)) (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0))} is UNKNOWN [2020-07-28 18:24:31,095 INFO L280 TraceCheckUtils]: 3: Hoare triple {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} assume !!~bvult32(main_~l~0, main_~n~0); {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is VALID [2020-07-28 18:24:31,095 INFO L280 TraceCheckUtils]: 2: Hoare triple {233#true} assume !!~bvule32(main_~n~0, ~SIZE~0);main_~i~0 := 0bv32;main_~j~0 := 0bv32;main_~k~0 := 0bv32;main_~l~0 := 0bv32; {276#(= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0)} is VALID [2020-07-28 18:24:31,096 INFO L280 TraceCheckUtils]: 1: Hoare triple {233#true} havoc main_#res;havoc main_#t~nondet0, main_~n~0, main_~i~0, main_~k~0, main_~j~0, main_~l~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;havoc main_~j~0;main_~l~0 := 0bv32;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {233#true} is VALID [2020-07-28 18:24:31,096 INFO L280 TraceCheckUtils]: 0: Hoare triple {233#true} ~SIZE~0 := 20000001bv32; {233#true} is VALID [2020-07-28 18:24:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-28 18:24:31,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78558483] [2020-07-28 18:24:31,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-28 18:24:31,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-07-28 18:24:31,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597781308] [2020-07-28 18:24:31,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-28 18:24:31,100 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:24:31,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 18:24:33,156 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 9 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2020-07-28 18:24:33,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 18:24:33,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 18:24:33,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 18:24:33,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-28 18:24:33,157 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 5 states. [2020-07-28 18:24:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:37,109 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2020-07-28 18:24:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 18:24:37,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-28 18:24:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:24:37,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:24:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-28 18:24:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 18:24:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-28 18:24:37,113 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 13 transitions. [2020-07-28 18:24:40,808 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 12 inductive. 0 not inductive. 1 times theorem prover too weak to decide inductivity. [2020-07-28 18:24:40,808 INFO L225 Difference]: With dead ends: 13 [2020-07-28 18:24:40,808 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 18:24:40,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-28 18:24:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 18:24:40,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 18:24:40,810 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:24:40,810 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 18:24:40,810 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:24:40,810 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:24:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:40,811 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:24:40,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:24:40,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:24:40,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:24:40,812 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:24:40,812 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:24:40,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:24:40,812 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:24:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:24:40,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:24:40,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:24:40,813 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:24:40,814 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:24:40,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 18:24:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 18:24:40,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-07-28 18:24:40,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:24:40,814 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 18:24:40,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 18:24:40,815 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:24:40,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:24:41,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 18:24:41,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 18:24:41,087 INFO L271 CegarLoopResult]: At program point L33(lines 14 34) the Hoare annotation is: true [2020-07-28 18:24:41,087 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 18:24:41,087 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-07-28 18:24:41,087 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point L26(lines 26 29) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point L24(lines 24 29) no Hoare annotation was computed. [2020-07-28 18:24:41,088 INFO L268 CegarLoopResult]: For program point L26-2(lines 24 29) no Hoare annotation was computed. [2020-07-28 18:24:41,089 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-28 18:24:41,089 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 31) the Hoare annotation is: (= (bvadd ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~k~0) ULTIMATE.start_main_~l~0) [2020-07-28 18:24:41,089 INFO L268 CegarLoopResult]: For program point L22-3(lines 22 31) no Hoare annotation was computed. [2020-07-28 18:24:41,089 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-28 18:24:41,093 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-28 18:24:41,094 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L22-3 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 18:24:41,095 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2020-07-28 18:24:41,096 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 18:24:41,096 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 18:24:41,096 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:24:41,096 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-28 18:24:41,096 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:24:41,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:24:41 BoogieIcfgContainer [2020-07-28 18:24:41,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:24:41,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:24:41,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:24:41,109 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:24:41,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:23:58" (3/4) ... [2020-07-28 18:24:41,115 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 18:24:41,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 18:24:41,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 18:24:41,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:24:41,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:24:41,182 INFO L168 Benchmark]: Toolchain (without parser) took 43512.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 960.2 MB in the beginning and 926.8 MB in the end (delta: 33.5 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,183 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:24:41,184 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.36 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,185 INFO L168 Benchmark]: Boogie Preprocessor took 41.98 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,186 INFO L168 Benchmark]: RCFGBuilder took 386.17 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,187 INFO L168 Benchmark]: TraceAbstraction took 42611.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.8 MB in the end (delta: 165.8 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:24:41,187 INFO L168 Benchmark]: Witness Printer took 70.26 ms. Allocated memory is still 1.2 GB. Free memory is still 926.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:24:41,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.36 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 100.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.98 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 386.17 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42611.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.8 MB in the end (delta: 165.8 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.26 ms. Allocated memory is still 1.2 GB. Free memory is still 926.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ~bvadd64(i, j, k) == l - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 42.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 4 SDslu, 19 SDs, 0 SdLazy, 53 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 8 HoareAnnotationTreeSize, 3 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 30.8s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1398 SizeOfPredicates, 12 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...