./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 849fed01ee44329cef2616b32b837b2abe910dbd .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:21:17,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:21:17,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:21:17,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:21:17,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:21:17,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:21:17,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:21:17,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:21:17,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:21:17,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:21:17,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:21:17,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:21:17,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:21:17,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:21:17,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:21:17,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:21:17,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:21:17,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:21:17,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:21:17,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:21:17,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:21:17,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:21:17,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:21:17,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:21:17,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:21:17,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:21:17,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:21:17,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:21:17,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:21:17,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:21:17,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:21:17,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:21:17,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:21:17,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:21:17,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:21:17,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:21:17,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:21:17,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:21:17,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:21:17,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:21:17,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:21:17,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:21:17,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:21:17,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:21:17,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:21:17,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:21:17,904 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:21:17,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:21:17,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:21:17,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:21:17,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:21:17,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:21:17,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:21:17,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:21:17,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:21:17,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:21:17,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:21:17,908 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:21:17,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:21:17,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:21:17,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:21:17,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:21:17,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:21:17,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:21:17,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:21:17,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:21:17,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:21:17,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:21:17,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:21:17,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:21:17,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:21:17,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 849fed01ee44329cef2616b32b837b2abe910dbd [2020-10-25 22:21:18,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:21:18,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:21:18,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:21:18,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:21:18,397 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:21:18,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2020-10-25 22:21:18,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd7ae9ff/7086fc7d2cf6421ebcf68233afb4f20a/FLAG3a37de531 [2020-10-25 22:21:19,009 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:21:19,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2020-10-25 22:21:19,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd7ae9ff/7086fc7d2cf6421ebcf68233afb4f20a/FLAG3a37de531 [2020-10-25 22:21:19,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd7ae9ff/7086fc7d2cf6421ebcf68233afb4f20a [2020-10-25 22:21:19,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:21:19,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:21:19,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:21:19,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:21:19,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:21:19,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614918d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19, skipping insertion in model container [2020-10-25 22:21:19,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:21:19,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:21:19,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:21:19,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:21:19,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:21:19,791 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:21:19,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19 WrapperNode [2020-10-25 22:21:19,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:21:19,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:21:19,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:21:19,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:21:19,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:21:19,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:21:19,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:21:19,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:21:19,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (1/1) ... [2020-10-25 22:21:19,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:21:19,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:21:19,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:21:19,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:21:19,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (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 [2020-10-25 22:21:20,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:21:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:21:20,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:21:20,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:21:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 22:21:20,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:21:20,322 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:21:20,322 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-25 22:21:20,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:20 BoogieIcfgContainer [2020-10-25 22:21:20,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:21:20,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:21:20,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:21:20,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:21:20,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:21:19" (1/3) ... [2020-10-25 22:21:20,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6536bd9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:21:20, skipping insertion in model container [2020-10-25 22:21:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:21:19" (2/3) ... [2020-10-25 22:21:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6536bd9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:21:20, skipping insertion in model container [2020-10-25 22:21:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:20" (3/3) ... [2020-10-25 22:21:20,354 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2020-10-25 22:21:20,376 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:21:20,381 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-25 22:21:20,394 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-25 22:21:20,420 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:21:20,421 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:21:20,421 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:21:20,421 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:21:20,421 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:21:20,421 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:21:20,422 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:21:20,422 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:21:20,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-10-25 22:21:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:21:20,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:20,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:20,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:20,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:20,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1228629738, now seen corresponding path program 1 times [2020-10-25 22:21:20,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:20,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499620541] [2020-10-25 22:21:20,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:20,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499620541] [2020-10-25 22:21:20,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:20,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 22:21:20,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463619649] [2020-10-25 22:21:20,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:21:20,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:20,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:21:20,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:21:20,632 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2020-10-25 22:21:20,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:20,652 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2020-10-25 22:21:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:21:20,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 22:21:20,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:20,663 INFO L225 Difference]: With dead ends: 51 [2020-10-25 22:21:20,663 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:21:20,667 INFO L677 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 [2020-10-25 22:21:20,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:21:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-25 22:21:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:21:20,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-25 22:21:20,714 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2020-10-25 22:21:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:20,715 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-25 22:21:20,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:21:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-25 22:21:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:21:20,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:20,716 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:20,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:21:20,717 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:20,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1980718062, now seen corresponding path program 1 times [2020-10-25 22:21:20,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:20,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762788283] [2020-10-25 22:21:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:20,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762788283] [2020-10-25 22:21:20,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:20,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 22:21:20,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012092958] [2020-10-25 22:21:20,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 22:21:20,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:20,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 22:21:20,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 22:21:20,935 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 5 states. [2020-10-25 22:21:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:21,057 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-10-25 22:21:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:21:21,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-25 22:21:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:21,060 INFO L225 Difference]: With dead ends: 39 [2020-10-25 22:21:21,060 INFO L226 Difference]: Without dead ends: 35 [2020-10-25 22:21:21,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:21:21,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-25 22:21:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 24. [2020-10-25 22:21:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-25 22:21:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-25 22:21:21,074 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 10 [2020-10-25 22:21:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:21,074 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-25 22:21:21,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 22:21:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-25 22:21:21,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-25 22:21:21,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:21,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:21,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:21:21,078 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:21,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1710011751, now seen corresponding path program 1 times [2020-10-25 22:21:21,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:21,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899598726] [2020-10-25 22:21:21,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:21,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899598726] [2020-10-25 22:21:21,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:21,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 22:21:21,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110509261] [2020-10-25 22:21:21,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 22:21:21,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:21,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 22:21:21,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 22:21:21,205 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 3 states. [2020-10-25 22:21:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:21,215 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-10-25 22:21:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 22:21:21,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-25 22:21:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:21,217 INFO L225 Difference]: With dead ends: 35 [2020-10-25 22:21:21,217 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 22:21:21,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 22:21:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 22:21:21,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-10-25 22:21:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-25 22:21:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-25 22:21:21,224 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 12 [2020-10-25 22:21:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:21,224 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-25 22:21:21,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 22:21:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-25 22:21:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 22:21:21,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:21,226 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:21,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 22:21:21,226 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:21,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:21,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1525024903, now seen corresponding path program 1 times [2020-10-25 22:21:21,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:21,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351885397] [2020-10-25 22:21:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:21,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:21,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351885397] [2020-10-25 22:21:21,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673977703] [2020-10-25 22:21:21,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 22:21:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:21,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-25 22:21:21,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:21:21,769 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-25 22:21:21,770 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:21:24,068 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:21:24,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-25 22:21:24,232 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-25 22:21:24,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-25 22:21:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:24,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 22:21:24,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-10-25 22:21:24,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401734353] [2020-10-25 22:21:24,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-25 22:21:24,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:24,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-25 22:21:24,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2020-10-25 22:21:24,725 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2020-10-25 22:21:29,125 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2020-10-25 22:21:31,331 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2020-10-25 22:21:37,738 WARN L193 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2020-10-25 22:21:42,087 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2020-10-25 22:21:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:50,690 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2020-10-25 22:21:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-25 22:21:50,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2020-10-25 22:21:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:50,691 INFO L225 Difference]: With dead ends: 48 [2020-10-25 22:21:50,691 INFO L226 Difference]: Without dead ends: 44 [2020-10-25 22:21:50,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=113, Invalid=263, Unknown=4, NotChecked=0, Total=380 [2020-10-25 22:21:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-25 22:21:50,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 19. [2020-10-25 22:21:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-25 22:21:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-25 22:21:50,697 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2020-10-25 22:21:50,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:50,698 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-25 22:21:50,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-25 22:21:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-25 22:21:50,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 22:21:50,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:50,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:50,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 22:21:50,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:50,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:50,918 INFO L82 PathProgramCache]: Analyzing trace with hash 54617550, now seen corresponding path program 1 times [2020-10-25 22:21:50,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:50,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779869806] [2020-10-25 22:21:50,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:51,542 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2020-10-25 22:21:51,867 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 61 [2020-10-25 22:21:52,089 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-10-25 22:21:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:52,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779869806] [2020-10-25 22:21:52,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:21:52,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 22:21:52,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934770468] [2020-10-25 22:21:52,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 22:21:52,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:21:52,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 22:21:52,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 22:21:52,151 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 7 states. [2020-10-25 22:21:52,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:21:52,516 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-10-25 22:21:52,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-25 22:21:52,521 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-10-25 22:21:52,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:21:52,522 INFO L225 Difference]: With dead ends: 26 [2020-10-25 22:21:52,522 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:21:52,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-25 22:21:52,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:21:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2020-10-25 22:21:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-25 22:21:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-25 22:21:52,531 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 17 [2020-10-25 22:21:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:21:52,532 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-25 22:21:52,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 22:21:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-25 22:21:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-25 22:21:52,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:21:52,533 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:21:52,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 22:21:52,534 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:21:52,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:21:52,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1637122922, now seen corresponding path program 1 times [2020-10-25 22:21:52,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:21:52,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836647545] [2020-10-25 22:21:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:21:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:21:52,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836647545] [2020-10-25 22:21:52,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772265385] [2020-10-25 22:21:52,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 22:21:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:21:52,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2020-10-25 22:21:52,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:21:52,919 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-25 22:21:52,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:21:53,015 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-25 22:21:53,015 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:22:03,713 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 16 [2020-10-25 22:22:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:22:08,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 22:22:08,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9] total 11 [2020-10-25 22:22:08,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114184980] [2020-10-25 22:22:08,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-25 22:22:08,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:22:08,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-25 22:22:08,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=76, Unknown=5, NotChecked=0, Total=110 [2020-10-25 22:22:08,258 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 11 states. [2020-10-25 22:22:24,401 WARN L193 SmtUtils]: Spent 4.26 s on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2020-10-25 22:22:33,722 WARN L193 SmtUtils]: Spent 6.66 s on a formula simplification that was a NOOP. DAG size: 17 [2020-10-25 22:22:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:22:35,946 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-25 22:22:35,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-25 22:22:35,948 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2020-10-25 22:22:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:22:35,948 INFO L225 Difference]: With dead ends: 27 [2020-10-25 22:22:35,949 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:22:35,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 38.4s TimeCoverageRelationStatistics Valid=61, Invalid=169, Unknown=10, NotChecked=0, Total=240 [2020-10-25 22:22:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:22:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:22:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:22:35,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:22:35,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-25 22:22:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:22:35,950 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:22:35,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-25 22:22:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:22:35,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:22:36,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 22:22:36,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:22:40,605 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2020-10-25 22:22:55,439 WARN L193 SmtUtils]: Spent 14.76 s on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2020-10-25 22:22:59,991 WARN L193 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point L53(lines 53 59) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point L20(lines 20 22) no Hoare annotation was computed. [2020-10-25 22:22:59,994 INFO L274 CegarLoopResult]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L270 CegarLoopResult]: At program point L45-1(lines 20 51) the Hoare annotation is: (let ((.cse3 (div ULTIMATE.start_main_~index2~0 4294967296))) (let ((.cse5 (* 4294967296 .cse3))) (or (and (let ((.cse4 (div ULTIMATE.start_main_~index1~0 4294967296))) (or (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse0 (select .cse2 (+ (* .cse4 (- 17179869184)) |ULTIMATE.start_main_~#array~0.offset| (* ULTIMATE.start_main_~index1~0 4))))) (<= .cse0 (let ((.cse1 (select .cse2 (+ (* .cse3 (- 17179869184)) (* ULTIMATE.start_main_~index2~0 4) |ULTIMATE.start_main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ .cse0 (* .cse1 (- 1))) 4294967296)) .cse1))))) (<= (+ .cse5 ULTIMATE.start_main_~index1~0) (+ (* 4294967296 .cse4) ULTIMATE.start_main_~index2~0)))) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296)) (<= ULTIMATE.start_main_~index2~0 (+ .cse5 99998))) (and (< (mod ULTIMATE.start_main_~index1~0 4294967296) 100000) (= ULTIMATE.start_main_~loop_entered~0 0) (<= ULTIMATE.start_main_~index2~0 (+ .cse5 99999)))))) [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point L45-2(lines 34 61) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point L33(lines 33 61) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L270 CegarLoopResult]: At program point L25-2(lines 23 29) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~index2~0 4294967296))) (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< .cse0 100000) (< (mod ULTIMATE.start_main_~index1~0 4294967296) .cse0))) [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 27) no Hoare annotation was computed. [2020-10-25 22:22:59,995 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L270 CegarLoopResult]: At program point L25-5(lines 23 29) the Hoare annotation is: (let ((.cse0 (mod ULTIMATE.start_main_~index1~0 4294967296))) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (< (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296)) (< .cse0 100000) (< (mod ULTIMATE.start_main_~index2~0 4294967296) .cse0))) [2020-10-25 22:22:59,996 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 58) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (let ((.cse6 (mod (+ ULTIMATE.start_main_~index2~0 1) 4294967296))) (and .cse0 (let ((.cse4 (div ULTIMATE.start_main_~index2~0 4294967296)) (.cse5 (div ULTIMATE.start_main_~index1~0 4294967296))) (or (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|))) (let ((.cse1 (select .cse3 (+ (* .cse5 (- 17179869184)) |ULTIMATE.start_main_~#array~0.offset| (* ULTIMATE.start_main_~index1~0 4))))) (<= .cse1 (let ((.cse2 (select .cse3 (+ (* .cse4 (- 17179869184)) (* ULTIMATE.start_main_~index2~0 4) |ULTIMATE.start_main_~#array~0.offset|)))) (+ (* 4294967296 (div (+ .cse1 (* .cse2 (- 1))) 4294967296)) .cse2))))) (<= (+ (* 4294967296 .cse4) ULTIMATE.start_main_~index1~0) (+ (* 4294967296 .cse5) ULTIMATE.start_main_~index2~0)))) (< .cse6 100000) (< (mod (+ ULTIMATE.start_main_~index1~0 4294967295) 4294967296) .cse6))) (let ((.cse7 (mod ULTIMATE.start_main_~index2~0 4294967296))) (and .cse0 (< (mod (+ ULTIMATE.start_main_~index2~0 4294967295) 4294967296) (mod (+ ULTIMATE.start_main_~index1~0 1) 4294967296)) (< .cse7 100000) (< (mod ULTIMATE.start_main_~index1~0 4294967296) .cse7))))) [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L21-4(line 21) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L18-3(line 18) no Hoare annotation was computed. [2020-10-25 22:22:59,996 INFO L274 CegarLoopResult]: For program point L18-4(line 18) no Hoare annotation was computed. [2020-10-25 22:23:00,001 INFO L274 CegarLoopResult]: For program point L18-6(line 18) no Hoare annotation was computed. [2020-10-25 22:23:00,002 INFO L274 CegarLoopResult]: For program point L18-7(line 18) no Hoare annotation was computed. [2020-10-25 22:23:00,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,012 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,025 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,026 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:23:00 BoogieIcfgContainer [2020-10-25 22:23:00,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:23:00,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:23:00,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:23:00,033 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:23:00,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:21:20" (3/4) ... [2020-10-25 22:23:00,037 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:23:00,048 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-10-25 22:23:00,048 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 22:23:00,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:23:00,049 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:23:00,115 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:23:00,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:23:00,117 INFO L168 Benchmark]: Toolchain (without parser) took 100720.73 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 37.8 MB in the beginning and 36.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,117 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:23:00,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.94 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 42.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.4 MB in the beginning and 40.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,119 INFO L168 Benchmark]: Boogie Preprocessor took 57.60 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 39.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,120 INFO L168 Benchmark]: RCFGBuilder took 406.38 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 40.4 MB in the end (delta: -857.1 kB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,124 INFO L168 Benchmark]: TraceAbstraction took 99693.91 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.9 MB in the beginning and 39.6 MB in the end (delta: 275.3 kB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,125 INFO L168 Benchmark]: Witness Printer took 82.94 ms. Allocated memory is still 73.4 MB. Free memory was 39.6 MB in the beginning and 36.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:23:00,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.94 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 42.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.4 MB in the beginning and 40.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.60 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 39.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 406.38 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 40.4 MB in the end (delta: -857.1 kB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99693.91 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.9 MB in the beginning and 39.6 MB in the end (delta: 275.3 kB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 82.94 ms. Allocated memory is still 73.4 MB. Free memory was 39.6 MB in the beginning and 36.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 18]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant [2020-10-25 22:23:00,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,152 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,153 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + array + index1 * 4] <= 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + array + index1 * 4] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1) / 4294967296) + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] || 4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2) && 1 <= cond) && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) && index2 <= 4294967296 * (index2 / 4294967296) + 99998) || ((index1 % 4294967296 < 100000 && loop_entered == 0) && index2 <= 4294967296 * (index2 / 4294967296) + 99999) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (1 == cond && index2 % 4294967296 < 100000) && index1 % 4294967296 < index2 % 4294967296 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((!(0 == cond) && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) && index1 % 4294967296 < 100000) && index2 % 4294967296 < index1 % 4294967296 - InvariantResult [Line: 54]: Loop Invariant [2020-10-25 22:23:00,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,157 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-25 22:23:00,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((!(0 == cond) && (unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + array + index1 * 4] <= 4294967296 * ((unknown-#memory_int-unknown[array][index1 / 4294967296 * -17179869184 + array + index1 * 4] + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] * -1) / 4294967296) + unknown-#memory_int-unknown[array][index2 / 4294967296 * -17179869184 + index2 * 4 + array] || 4294967296 * (index2 / 4294967296) + index1 <= 4294967296 * (index1 / 4294967296) + index2)) && (index2 + 1) % 4294967296 < 100000) && (index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296) || (((!(0 == cond) && (index2 + 4294967295) % 4294967296 < (index1 + 1) % 4294967296) && index2 % 4294967296 < 100000) && index1 % 4294967296 < index2 % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 75.7s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 54.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 149 SDslu, 147 SDs, 0 SdLazy, 208 SolverSat, 45 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 12.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 34 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 59.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 301 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1015 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 526 FormulaSimplificationTreeSizeReductionInter, 23.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 20.0s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 33985 SizeOfPredicates, 12 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 6/11 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...