./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_trans.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/id_trans.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2585982366e12850b78353d5a08eef796173b16 ................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 10:57:30,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 10:57:30,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 10:57:30,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 10:57:30,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 10:57:30,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 10:57:30,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 10:57:30,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 10:57:30,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 10:57:30,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 10:57:30,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 10:57:30,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 10:57:30,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 10:57:30,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 10:57:30,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 10:57:30,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 10:57:30,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 10:57:30,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 10:57:30,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 10:57:30,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 10:57:30,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 10:57:30,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 10:57:30,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 10:57:30,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 10:57:30,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 10:57:30,660 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 10:57:30,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 10:57:30,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 10:57:30,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 10:57:30,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 10:57:30,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 10:57:30,663 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 10:57:30,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 10:57:30,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 10:57:30,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 10:57:30,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 10:57:30,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 10:57:30,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 10:57:30,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 10:57:30,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 10:57:30,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 10:57:30,668 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 10:57:30,689 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 10:57:30,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 10:57:30,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 10:57:30,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 10:57:30,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 10:57:30,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 10:57:30,691 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 10:57:30,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 10:57:30,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 10:57:30,693 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 10:57:30,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 10:57:30,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 10:57:30,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 10:57:30,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 10:57:30,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 10:57:30,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 10:57:30,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:57:30,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 10:57:30,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 10:57:30,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 10:57:30,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 10:57:30,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 10:57:30,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 10:57:30,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 10:57:30,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2585982366e12850b78353d5a08eef796173b16 [2021-08-29 10:57:30,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 10:57:30,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 10:57:31,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 10:57:31,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 10:57:31,004 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 10:57:31,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_trans.i [2021-08-29 10:57:31,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d88b1ba0/b11cc78dee6f45a6854ea449656c9cab/FLAG2a2cec019 [2021-08-29 10:57:31,493 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 10:57:31,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_trans.i [2021-08-29 10:57:31,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d88b1ba0/b11cc78dee6f45a6854ea449656c9cab/FLAG2a2cec019 [2021-08-29 10:57:31,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d88b1ba0/b11cc78dee6f45a6854ea449656c9cab [2021-08-29 10:57:31,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 10:57:31,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 10:57:31,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 10:57:31,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 10:57:31,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 10:57:31,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4490f2a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31, skipping insertion in model container [2021-08-29 10:57:31,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 10:57:31,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 10:57:31,673 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/loop-invgen/id_trans.i[893,906] [2021-08-29 10:57:31,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:57:31,688 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 10:57:31,697 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/loop-invgen/id_trans.i[893,906] [2021-08-29 10:57:31,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:57:31,711 INFO L208 MainTranslator]: Completed translation [2021-08-29 10:57:31,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31 WrapperNode [2021-08-29 10:57:31,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 10:57:31,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 10:57:31,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 10:57:31,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 10:57:31,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 10:57:31,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 10:57:31,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 10:57:31,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 10:57:31,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 10:57:31,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 10:57:31,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 10:57:31,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 10:57:31,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (1/1) ... [2021-08-29 10:57:31,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:57:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 10:57:31,822 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) [2021-08-29 10:57:31,846 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 [2021-08-29 10:57:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 10:57:31,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 10:57:31,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 10:57:31,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 10:57:32,005 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 10:57:32,005 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-08-29 10:57:32,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:57:32 BoogieIcfgContainer [2021-08-29 10:57:32,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 10:57:32,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 10:57:32,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 10:57:32,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 10:57:32,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:57:31" (1/3) ... [2021-08-29 10:57:32,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9db6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:57:32, skipping insertion in model container [2021-08-29 10:57:32,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:57:31" (2/3) ... [2021-08-29 10:57:32,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9db6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:57:32, skipping insertion in model container [2021-08-29 10:57:32,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:57:32" (3/3) ... [2021-08-29 10:57:32,013 INFO L111 eAbstractionObserver]: Analyzing ICFG id_trans.i [2021-08-29 10:57:32,019 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 10:57:32,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-29 10:57:32,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 10:57:32,062 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 [2021-08-29 10:57:32,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-29 10:57:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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) [2021-08-29 10:57:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 10:57:32,078 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:57:32,079 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 10:57:32,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-29 10:57:32,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:57:32,084 INFO L82 PathProgramCache]: Analyzing trace with hash 889574253, now seen corresponding path program 1 times [2021-08-29 10:57:32,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:57:32,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588785741] [2021-08-29 10:57:32,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:57:32,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:57:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:57:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:57:32,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:57:32,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588785741] [2021-08-29 10:57:32,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588785741] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:57:32,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:57:32,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 10:57:32,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235199871] [2021-08-29 10:57:32,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 10:57:32,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:57:32,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 10:57:32,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:57:32,333 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-08-29 10:57:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:57:32,427 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2021-08-29 10:57:32,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 10:57:32,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2021-08-29 10:57:32,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:57:32,437 INFO L225 Difference]: With dead ends: 49 [2021-08-29 10:57:32,438 INFO L226 Difference]: Without dead ends: 17 [2021-08-29 10:57:32,440 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:57:32,446 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.97ms IncrementalHoareTripleChecker+Time [2021-08-29 10:57:32,449 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 58 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 67.97ms Time] [2021-08-29 10:57:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-29 10:57:32,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-08-29 10:57:32,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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) [2021-08-29 10:57:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-29 10:57:32,478 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2021-08-29 10:57:32,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:57:32,479 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-29 10:57:32,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2021-08-29 10:57:32,480 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-29 10:57:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 10:57:32,481 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:57:32,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:57:32,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 10:57:32,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-29 10:57:32,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:57:32,484 INFO L82 PathProgramCache]: Analyzing trace with hash 182520880, now seen corresponding path program 1 times [2021-08-29 10:57:32,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:57:32,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496907583] [2021-08-29 10:57:32,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:57:32,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:57:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:57:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:57:32,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:57:32,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496907583] [2021-08-29 10:57:32,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496907583] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:57:32,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:57:32,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 10:57:32,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397263994] [2021-08-29 10:57:32,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 10:57:32,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:57:32,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 10:57:32,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:57:32,599 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-08-29 10:57:32,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:57:32,650 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-08-29 10:57:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 10:57:32,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 [2021-08-29 10:57:32,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:57:32,651 INFO L225 Difference]: With dead ends: 17 [2021-08-29 10:57:32,651 INFO L226 Difference]: Without dead ends: 15 [2021-08-29 10:57:32,652 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.96ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:57:32,653 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.46ms IncrementalHoareTripleChecker+Time [2021-08-29 10:57:32,653 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 38.46ms Time] [2021-08-29 10:57:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-29 10:57:32,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-08-29 10:57:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 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) [2021-08-29 10:57:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-08-29 10:57:32,657 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-08-29 10:57:32,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:57:32,658 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-08-29 10:57:32,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-08-29 10:57:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-08-29 10:57:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 10:57:32,658 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:57:32,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:57:32,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 10:57:32,659 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-08-29 10:57:32,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:57:32,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1729194902, now seen corresponding path program 1 times [2021-08-29 10:57:32,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:57:32,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068750647] [2021-08-29 10:57:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:57:32,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:57:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 10:57:32,685 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 10:57:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 10:57:32,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 10:57:32,749 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 10:57:32,749 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-08-29 10:57:32,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-08-29 10:57:32,752 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-08-29 10:57:32,753 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-08-29 10:57:32,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 10:57:32,761 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 10:57:32,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:57:32 BoogieIcfgContainer [2021-08-29 10:57:32,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 10:57:32,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 10:57:32,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 10:57:32,800 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 10:57:32,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:57:32" (3/4) ... [2021-08-29 10:57:32,802 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 10:57:32,847 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 10:57:32,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 10:57:32,848 INFO L158 Benchmark]: Toolchain (without parser) took 1323.49ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 40.2MB in the end (delta: -9.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,848 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 33.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:57:32,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.59ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 32.5MB in the end (delta: -2.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.99ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 53.1MB in the end (delta: -20.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,849 INFO L158 Benchmark]: Boogie Preprocessor took 15.89ms. Allocated memory is still 69.2MB. Free memory was 53.1MB in the beginning and 52.2MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:57:32,849 INFO L158 Benchmark]: RCFGBuilder took 225.49ms. Allocated memory is still 69.2MB. Free memory was 52.0MB in the beginning and 43.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,849 INFO L158 Benchmark]: TraceAbstraction took 790.40ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 42.3MB in the end (delta: 686.0kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,850 INFO L158 Benchmark]: Witness Printer took 47.10ms. Allocated memory is still 69.2MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 10:57:32,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 33.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.59ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 32.5MB in the end (delta: -2.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.99ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 32.5MB in the beginning and 53.1MB in the end (delta: -20.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.89ms. Allocated memory is still 69.2MB. Free memory was 53.1MB in the beginning and 52.2MB in the end (delta: 972.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.49ms. Allocated memory is still 69.2MB. Free memory was 52.0MB in the beginning and 43.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 790.40ms. Allocated memory is still 69.2MB. Free memory was 43.0MB in the beginning and 42.3MB in the end (delta: 686.0kB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 47.10ms. Allocated memory is still 69.2MB. Free memory was 42.3MB in the beginning and 40.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND FALSE !(!(cond)) [L18] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 705.34ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 8.85ms, AutomataDifference: 218.41ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 8.40ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 106.43ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 73.59ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 77 mSolverCounterSat, 1.59ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.82ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 20.94ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.93ms SsaConstructionTime, 66.20ms SatisfiabilityAnalysisTime, 180.68ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-29 10:57:32,901 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...