./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/nec40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/loops/nec40.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 ......................................................................................................................................................................................................................................................................................................................................................................................... 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 -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/loops/nec40.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:10:05,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:10:05,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:10:05,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:10:05,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:10:05,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:10:05,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:10:05,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:10:05,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:10:05,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:10:05,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:10:05,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:10:05,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:10:05,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:10:05,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:10:05,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:10:05,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:10:05,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:10:05,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:10:05,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:10:05,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:10:05,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:10:05,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:10:05,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:10:05,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:10:05,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:10:05,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:10:05,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:10:05,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:10:05,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:10:05,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:10:05,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:10:05,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:10:05,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:10:05,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:10:05,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:10:05,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:10:05,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:10:05,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:10:05,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:10:05,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:10:05,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 03:10:05,799 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:10:05,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:10:05,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:10:05,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:10:05,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:10:05,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:10:05,802 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:10:05,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:10:05,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:10:05,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:10:05,803 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:10:05,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:10:05,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:10:05,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:10:05,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:10:05,805 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 [2021-08-26 03:10:06,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:10:06,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:10:06,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:10:06,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:10:06,137 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:10:06,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/nec40.c [2021-08-26 03:10:06,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9859060/1b1faf9455c8452dbdb7771443671117/FLAG907bd9bfa [2021-08-26 03:10:06,578 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:10:06,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c [2021-08-26 03:10:06,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9859060/1b1faf9455c8452dbdb7771443671117/FLAG907bd9bfa [2021-08-26 03:10:06,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9859060/1b1faf9455c8452dbdb7771443671117 [2021-08-26 03:10:06,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:10:06,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:10:06,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:10:06,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:10:06,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:10:06,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d281de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06, skipping insertion in model container [2021-08-26 03:10:06,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:10:06,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:10:06,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c[317,330] [2021-08-26 03:10:06,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:10:06,764 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:10:06,773 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c[317,330] [2021-08-26 03:10:06,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:10:06,795 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:10:06,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06 WrapperNode [2021-08-26 03:10:06,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:10:06,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:10:06,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:10:06,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:10:06,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:10:06,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:10:06,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:10:06,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:10:06,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:10:06,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:10:06,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:10:06,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:10:06,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (1/1) ... [2021-08-26 03:10:06,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:10:06,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:10:06,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 03:10:06,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 03:10:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 03:10:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:10:06,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:10:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 03:10:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 03:10:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:10:07,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:10:07,172 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-26 03:10:07,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:07 BoogieIcfgContainer [2021-08-26 03:10:07,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:10:07,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:10:07,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:10:07,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:10:07,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:10:06" (1/3) ... [2021-08-26 03:10:07,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c88d4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:07, skipping insertion in model container [2021-08-26 03:10:07,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:06" (2/3) ... [2021-08-26 03:10:07,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c88d4ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:07, skipping insertion in model container [2021-08-26 03:10:07,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:07" (3/3) ... [2021-08-26 03:10:07,193 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2021-08-26 03:10:07,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:10:07,197 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 03:10:07,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:10:07,241 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 03:10:07,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 03:10:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 03:10:07,255 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:07,255 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:07,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:07,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:07,259 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2021-08-26 03:10:07,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:10:07,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790818709] [2021-08-26 03:10:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:07,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:10:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:07,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:07,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:10:07,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790818709] [2021-08-26 03:10:07,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790818709] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:07,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:07,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 03:10:07,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065270625] [2021-08-26 03:10:07,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 03:10:07,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:10:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 03:10:07,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:10:07,424 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:07,433 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-08-26 03:10:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 03:10:07,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 03:10:07,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:07,438 INFO L225 Difference]: With dead ends: 24 [2021-08-26 03:10:07,439 INFO L226 Difference]: Without dead ends: 10 [2021-08-26 03:10:07,440 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:10:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-26 03:10:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-26 03:10:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-08-26 03:10:07,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-08-26 03:10:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:07,460 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-08-26 03:10:07,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-08-26 03:10:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 03:10:07,461 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:07,461 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:07,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 03:10:07,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:07,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2021-08-26 03:10:07,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:10:07,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663828304] [2021-08-26 03:10:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:07,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:10:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:07,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:10:07,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663828304] [2021-08-26 03:10:07,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663828304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:07,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:07,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:10:07,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426119350] [2021-08-26 03:10:07,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:10:07,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:10:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:10:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:10:07,551 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:07,581 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-26 03:10:07,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:10:07,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-26 03:10:07,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:07,584 INFO L225 Difference]: With dead ends: 18 [2021-08-26 03:10:07,584 INFO L226 Difference]: Without dead ends: 12 [2021-08-26 03:10:07,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:10:07,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-26 03:10:07,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-08-26 03:10:07,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-08-26 03:10:07,589 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-08-26 03:10:07,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:07,589 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-08-26 03:10:07,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-08-26 03:10:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 03:10:07,590 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:07,590 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:07,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 03:10:07,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:07,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:07,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2021-08-26 03:10:07,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:10:07,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148081434] [2021-08-26 03:10:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:07,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:10:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:07,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:10:07,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148081434] [2021-08-26 03:10:07,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148081434] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:07,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:07,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:10:07,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867454514] [2021-08-26 03:10:07,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 03:10:07,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:10:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 03:10:07,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:10:07,754 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:07,790 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-08-26 03:10:07,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 03:10:07,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 03:10:07,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:07,791 INFO L225 Difference]: With dead ends: 12 [2021-08-26 03:10:07,791 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 03:10:07,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 57.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-26 03:10:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 03:10:07,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 03:10:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 03:10:07,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-08-26 03:10:07,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:07,792 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 03:10:07,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:07,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 03:10:07,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 03:10:07,794 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:10:07,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 03:10:07,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 03:10:07,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:07,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:07,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:07,820 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 03:10:07,820 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2021-08-26 03:10:07,820 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-08-26 03:10:07,820 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 03:10:07,821 INFO L860 garLoopResultBuilder]: At program point L30(lines 16 31) the Hoare annotation is: true [2021-08-26 03:10:07,823 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 03:10:07,823 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 03:10:07,823 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 28) no Hoare annotation was computed. [2021-08-26 03:10:07,824 INFO L860 garLoopResultBuilder]: At program point L26-1(lines 26 28) the Hoare annotation is: true [2021-08-26 03:10:07,824 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-08-26 03:10:07,824 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2021-08-26 03:10:07,824 INFO L853 garLoopResultBuilder]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-08-26 03:10:07,824 INFO L857 garLoopResultBuilder]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2021-08-26 03:10:07,824 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-08-26 03:10:07,827 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:10:07,835 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-26 03:10:07,839 INFO L168 Benchmark]: Toolchain (without parser) took 1237.78 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 24.7 MB in the beginning and 37.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:07,839 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:10:07,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.08 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.5 MB in the beginning and 43.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:07,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 58.7 MB. Free memory was 43.5 MB in the beginning and 42.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:07,842 INFO L168 Benchmark]: Boogie Preprocessor took 37.93 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:10:07,842 INFO L168 Benchmark]: RCFGBuilder took 314.98 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 38.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:07,844 INFO L168 Benchmark]: TraceAbstraction took 648.58 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 38.2 MB in the beginning and 37.2 MB in the end (delta: 988.0 kB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:07,847 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 48.2 MB. Free memory was 31.1 MB in the beginning and 31.1 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.08 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.5 MB in the beginning and 43.5 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 58.7 MB. Free memory was 43.5 MB in the beginning and 42.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.93 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 40.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 314.98 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 38.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 648.58 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 38.2 MB in the beginning and 37.2 MB in the end (delta: 988.0 kB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 592.4ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 8.0ms, AutomataDifference: 102.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 24.8ms, InitialAbstractionConstructionTime: 5.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 3 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.3ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 9.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 10.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 18.4ms SsaConstructionTime, 83.7ms SatisfiabilityAnalysisTime, 223.1ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-26 03:10:07,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:10:09,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:10:09,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:10:09,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:10:09,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:10:09,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:10:09,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:10:09,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:10:09,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:10:09,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:10:09,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:10:09,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:10:09,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:10:09,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:10:09,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:10:09,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:10:09,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:10:09,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:10:09,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:10:09,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:10:09,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:10:09,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:10:09,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:10:09,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:10:09,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:10:09,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:10:09,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:10:09,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:10:09,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:10:09,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:10:09,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:10:09,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:10:09,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:10:09,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:10:09,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:10:09,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:10:09,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:10:09,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:10:09,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:10:09,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:10:09,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:10:09,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 03:10:09,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:10:09,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:10:09,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:10:09,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:10:09,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:10:09,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:10:09,571 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:10:09,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:10:09,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:10:09,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:10:09,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 03:10:09,573 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:10:09,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:10:09,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:10:09,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:10:09,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:10:09,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:10:09,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:10:09,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:10:09,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:10:09,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:10:09,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:10:09,575 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 03:10:09,576 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 03:10:09,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:10:09,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:10:09,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 03:10:09,577 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e439a9fedaaf98dc56cb80d5d88e0a0508b93b38 [2021-08-26 03:10:09,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:10:09,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:10:09,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:10:09,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:10:09,847 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:10:09,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/nec40.c [2021-08-26 03:10:09,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2855d6d1/d45490f4ea854d138eabc59b7399d705/FLAG8b7554c19 [2021-08-26 03:10:10,225 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:10:10,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c [2021-08-26 03:10:10,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2855d6d1/d45490f4ea854d138eabc59b7399d705/FLAG8b7554c19 [2021-08-26 03:10:10,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2855d6d1/d45490f4ea854d138eabc59b7399d705 [2021-08-26 03:10:10,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:10:10,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:10:10,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:10:10,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:10:10,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:10:10,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156351d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10, skipping insertion in model container [2021-08-26 03:10:10,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:10:10,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:10:10,792 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c[317,330] [2021-08-26 03:10:10,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:10:10,816 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:10:10,826 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c[317,330] [2021-08-26 03:10:10,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:10:10,862 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:10:10,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10 WrapperNode [2021-08-26 03:10:10,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:10:10,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:10:10,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:10:10,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:10:10,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:10:10,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:10:10,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:10:10,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:10:10,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:10:10,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:10:10,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:10:10,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:10:10,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (1/1) ... [2021-08-26 03:10:10,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:10:10,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:10:10,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 03:10:11,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 03:10:11,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-26 03:10:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:10:11,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:10:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 03:10:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-26 03:10:11,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:10:11,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:10:11,283 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-26 03:10:11,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:11 BoogieIcfgContainer [2021-08-26 03:10:11,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:10:11,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:10:11,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:10:11,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:10:11,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:10:10" (1/3) ... [2021-08-26 03:10:11,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbc0385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:11, skipping insertion in model container [2021-08-26 03:10:11,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:10:10" (2/3) ... [2021-08-26 03:10:11,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cbc0385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:10:11, skipping insertion in model container [2021-08-26 03:10:11,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:10:11" (3/3) ... [2021-08-26 03:10:11,290 INFO L111 eAbstractionObserver]: Analyzing ICFG nec40.c [2021-08-26 03:10:11,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:10:11,298 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 03:10:11,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:10:11,340 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 03:10:11,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 03:10:11,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:11,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-26 03:10:11,353 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:11,354 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:11,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:11,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2021-08-26 03:10:11,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 03:10:11,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632943945] [2021-08-26 03:10:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:11,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 03:10:11,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 03:10:11,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 03:10:11,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 03:10:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:11,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 03:10:11,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 03:10:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:11,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 03:10:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:11,537 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 03:10:11,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632943945] [2021-08-26 03:10:11,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632943945] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:11,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:11,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 03:10:11,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990698932] [2021-08-26 03:10:11,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 03:10:11,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 03:10:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 03:10:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:10:11,551 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:11,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:11,562 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-08-26 03:10:11,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 03:10:11,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-26 03:10:11,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:11,567 INFO L225 Difference]: With dead ends: 24 [2021-08-26 03:10:11,567 INFO L226 Difference]: Without dead ends: 10 [2021-08-26 03:10:11,569 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 03:10:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-26 03:10:11,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-26 03:10:11,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:11,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-08-26 03:10:11,586 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2021-08-26 03:10:11,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:11,587 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-08-26 03:10:11,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-08-26 03:10:11,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 03:10:11,587 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:11,587 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:11,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 03:10:11,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 03:10:11,794 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:11,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:11,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2021-08-26 03:10:11,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 03:10:11,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972200867] [2021-08-26 03:10:11,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:11,795 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 03:10:11,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 03:10:11,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 03:10:11,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 03:10:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:11,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 03:10:11,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 03:10:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:11,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 03:10:12,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:12,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 03:10:12,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972200867] [2021-08-26 03:10:12,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972200867] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:12,000 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:12,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-26 03:10:12,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436249262] [2021-08-26 03:10:12,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:10:12,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 03:10:12,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:10:12,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:10:12,002 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:12,033 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-26 03:10:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:10:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-26 03:10:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:12,034 INFO L225 Difference]: With dead ends: 18 [2021-08-26 03:10:12,034 INFO L226 Difference]: Without dead ends: 12 [2021-08-26 03:10:12,035 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:10:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-26 03:10:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-08-26 03:10:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-08-26 03:10:12,037 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-08-26 03:10:12,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:12,037 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-08-26 03:10:12,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,038 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-08-26 03:10:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 03:10:12,038 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:10:12,038 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:10:12,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 03:10:12,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 03:10:12,244 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 03:10:12,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:10:12,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2021-08-26 03:10:12,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 03:10:12,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285211488] [2021-08-26 03:10:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:10:12,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 03:10:12,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 03:10:12,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 03:10:12,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 03:10:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:10:12,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-26 03:10:12,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 03:10:12,386 INFO L354 Elim1Store]: treesize reduction 16, result has 27.3 percent of original size [2021-08-26 03:10:12,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 13 [2021-08-26 03:10:12,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-08-26 03:10:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:12,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 03:10:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 03:10:12,575 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 03:10:12,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285211488] [2021-08-26 03:10:12,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285211488] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 03:10:12,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:10:12,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-26 03:10:12,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868205289] [2021-08-26 03:10:12,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 03:10:12,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 03:10:12,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 03:10:12,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-26 03:10:12,585 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:10:12,605 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2021-08-26 03:10:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 03:10:12,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 03:10:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:10:12,606 INFO L225 Difference]: With dead ends: 12 [2021-08-26 03:10:12,606 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 03:10:12,606 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 45.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-26 03:10:12,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 03:10:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 03:10:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 03:10:12,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-08-26 03:10:12,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:10:12,607 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 03:10:12,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 03:10:12,607 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 03:10:12,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 03:10:12,609 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:10:12,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 03:10:12,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 03:10:12,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 03:10:12,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:12,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:12,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:10:12,857 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 03:10:12,857 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L860 garLoopResultBuilder]: At program point L30(lines 16 31) the Hoare annotation is: true [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 28) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L860 garLoopResultBuilder]: At program point L26-1(lines 26 28) the Hoare annotation is: true [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2021-08-26 03:10:12,858 INFO L853 garLoopResultBuilder]: At program point L20-3(lines 20 23) the Hoare annotation is: (and (= ~i~0 (_ bv0 32)) (= (select |#memory_int| |~#x~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) [2021-08-26 03:10:12,858 INFO L857 garLoopResultBuilder]: For program point L20-4(lines 20 23) no Hoare annotation was computed. [2021-08-26 03:10:12,859 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-08-26 03:10:12,861 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:10:12,868 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-26 03:10:12,870 INFO L168 Benchmark]: Toolchain (without parser) took 2207.65 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.1 MB in the beginning and 38.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:12,871 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 30.3 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:10:12,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.28 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 43.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:12,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 58.7 MB. Free memory was 43.2 MB in the beginning and 41.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:12,872 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 40.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:10:12,872 INFO L168 Benchmark]: RCFGBuilder took 332.72 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 37.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:12,872 INFO L168 Benchmark]: TraceAbstraction took 1583.84 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 38.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-08-26 03:10:12,874 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 48.2 MB. Free memory was 30.3 MB in the beginning and 30.3 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.28 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 43.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 58.7 MB. Free memory was 43.2 MB in the beginning and 41.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.08 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 40.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 332.72 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 37.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1583.84 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 38.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1527.0ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 7.4ms, AutomataDifference: 84.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 38.7ms, InitialAbstractionConstructionTime: 5.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 56.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 24.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 9.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 48.3ms SsaConstructionTime, 65.1ms SatisfiabilityAnalysisTime, 466.1ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 3 QuantifiedInterpolants, 110 SizeOfPredicates, 10 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 4/4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-26 03:10:12,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...