./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i --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/loop-invgen/apache-escape-absolute.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 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 03:35:02,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 03:35:02,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 03:35:02,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 03:35:02,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 03:35:02,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 03:35:02,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 03:35:02,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 03:35:02,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 03:35:02,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 03:35:02,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 03:35:02,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 03:35:02,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 03:35:02,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 03:35:02,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 03:35:02,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 03:35:02,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 03:35:02,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 03:35:02,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 03:35:02,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 03:35:02,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 03:35:02,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 03:35:02,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 03:35:02,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 03:35:02,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 03:35:02,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 03:35:02,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 03:35:02,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 03:35:02,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 03:35:02,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 03:35:02,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 03:35:02,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 03:35:02,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 03:35:02,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 03:35:02,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 03:35:02,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 03:35:02,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 03:35:02,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 03:35:02,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 03:35:02,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 03:35:02,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 03:35:02,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 03:35:02,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 03:35:02,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 03:35:02,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 03:35:02,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 03:35:02,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 03:35:02,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 03:35:02,505 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 03:35:02,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 03:35:02,505 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 03:35:02,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 03:35:02,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 03:35:02,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 03:35:02,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 03:35:02,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 03:35:02,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 03:35:02,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:35:02,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 03:35:02,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 03:35:02,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 03:35:02,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 03:35:02,509 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93bb43afb01d6e3a62dc39071b7659c8b1c085d1 [2021-08-26 03:35:02,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 03:35:02,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 03:35:02,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 03:35:02,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 03:35:02,832 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 03:35:02,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-08-26 03:35:02,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfe35de90/e98cf3d1ee7742e18bd741387e5a5b15/FLAGafc4e26f3 [2021-08-26 03:35:03,387 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 03:35:03,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-escape-absolute.i [2021-08-26 03:35:03,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfe35de90/e98cf3d1ee7742e18bd741387e5a5b15/FLAGafc4e26f3 [2021-08-26 03:35:03,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfe35de90/e98cf3d1ee7742e18bd741387e5a5b15 [2021-08-26 03:35:03,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 03:35:03,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 03:35:03,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 03:35:03,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 03:35:03,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 03:35:03,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:03,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381857fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03, skipping insertion in model container [2021-08-26 03:35:03,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:03,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 03:35:03,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 03:35:03,882 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/apache-escape-absolute.i[893,906] [2021-08-26 03:35:03,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:35:03,908 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 03:35:03,919 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/apache-escape-absolute.i[893,906] [2021-08-26 03:35:03,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 03:35:03,955 INFO L208 MainTranslator]: Completed translation [2021-08-26 03:35:03,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03 WrapperNode [2021-08-26 03:35:03,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 03:35:03,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 03:35:03,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 03:35:03,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 03:35:03,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:03,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 03:35:04,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 03:35:04,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 03:35:04,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 03:35:04,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 03:35:04,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 03:35:04,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 03:35:04,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 03:35:04,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (1/1) ... [2021-08-26 03:35:04,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 03:35:04,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:35:04,061 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 03:35:04,088 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 03:35:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 03:35:04,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 03:35:04,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 03:35:04,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 03:35:04,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 03:35:04,497 INFO L299 CfgBuilder]: Removed 42 assume(true) statements. [2021-08-26 03:35:04,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:35:04 BoogieIcfgContainer [2021-08-26 03:35:04,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 03:35:04,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 03:35:04,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 03:35:04,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 03:35:04,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:35:03" (1/3) ... [2021-08-26 03:35:04,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a74da26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:35:04, skipping insertion in model container [2021-08-26 03:35:04,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:35:03" (2/3) ... [2021-08-26 03:35:04,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a74da26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:35:04, skipping insertion in model container [2021-08-26 03:35:04,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:35:04" (3/3) ... [2021-08-26 03:35:04,512 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i [2021-08-26 03:35:04,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 03:35:04,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-08-26 03:35:04,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 03:35:04,575 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 03:35:04,575 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-08-26 03:35:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 71 states have (on average 1.7464788732394365) internal successors, (124), 89 states have internal predecessors, (124), 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 03:35:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 03:35:04,597 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:04,597 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:04,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:04,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:04,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2087055015, now seen corresponding path program 1 times [2021-08-26 03:35:04,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:04,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128123798] [2021-08-26 03:35:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:04,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:04,809 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 03:35:04,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:04,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128123798] [2021-08-26 03:35:04,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128123798] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:04,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:04,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:35:04,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936293125] [2021-08-26 03:35:04,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:35:04,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:04,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:35:04,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:35:04,837 INFO L87 Difference]: Start difference. First operand has 90 states, 71 states have (on average 1.7464788732394365) internal successors, (124), 89 states have internal predecessors, (124), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 03:35:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:05,008 INFO L93 Difference]: Finished difference Result 172 states and 231 transitions. [2021-08-26 03:35:05,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:35:05,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 03:35:05,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:05,018 INFO L225 Difference]: With dead ends: 172 [2021-08-26 03:35:05,018 INFO L226 Difference]: Without dead ends: 84 [2021-08-26 03:35:05,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:35:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-08-26 03:35:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-08-26 03:35:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 83 states have internal predecessors, (87), 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 03:35:05,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2021-08-26 03:35:05,066 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 11 [2021-08-26 03:35:05,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:05,067 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2021-08-26 03:35:05,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 03:35:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2021-08-26 03:35:05,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-26 03:35:05,069 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:05,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:05,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 03:35:05,070 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:05,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:05,072 INFO L82 PathProgramCache]: Analyzing trace with hash 90014268, now seen corresponding path program 1 times [2021-08-26 03:35:05,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:05,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101385750] [2021-08-26 03:35:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:05,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:05,170 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 03:35:05,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:05,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101385750] [2021-08-26 03:35:05,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101385750] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:05,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:05,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 03:35:05,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951712905] [2021-08-26 03:35:05,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 03:35:05,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:05,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 03:35:05,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:35:05,174 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 03:35:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:05,344 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2021-08-26 03:35:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 03:35:05,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-08-26 03:35:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:05,347 INFO L225 Difference]: With dead ends: 84 [2021-08-26 03:35:05,347 INFO L226 Difference]: Without dead ends: 68 [2021-08-26 03:35:05,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 03:35:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-08-26 03:35:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-08-26 03:35:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 67 states have internal predecessors, (71), 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 03:35:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2021-08-26 03:35:05,367 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 13 [2021-08-26 03:35:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:05,367 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2021-08-26 03:35:05,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 03:35:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2021-08-26 03:35:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 03:35:05,369 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:05,369 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:05,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 03:35:05,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:05,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1560326278, now seen corresponding path program 1 times [2021-08-26 03:35:05,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:05,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340862304] [2021-08-26 03:35:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:05,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:05,442 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 03:35:05,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:05,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340862304] [2021-08-26 03:35:05,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340862304] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:05,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:05,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:35:05,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091776809] [2021-08-26 03:35:05,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:35:05,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:05,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:35:05,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:35:05,450 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-08-26 03:35:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:05,592 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2021-08-26 03:35:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 03:35:05,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) Word has length 16 [2021-08-26 03:35:05,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:05,599 INFO L225 Difference]: With dead ends: 89 [2021-08-26 03:35:05,599 INFO L226 Difference]: Without dead ends: 81 [2021-08-26 03:35:05,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:35:05,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-08-26 03:35:05,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 75. [2021-08-26 03:35:05,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 74 states have internal predecessors, (80), 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 03:35:05,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2021-08-26 03:35:05,615 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 16 [2021-08-26 03:35:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:05,615 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2021-08-26 03:35:05,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-08-26 03:35:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2021-08-26 03:35:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-26 03:35:05,616 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:05,616 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:05,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 03:35:05,617 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:05,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:05,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2076895521, now seen corresponding path program 1 times [2021-08-26 03:35:05,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:05,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828661891] [2021-08-26 03:35:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:05,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 03:35:05,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:05,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828661891] [2021-08-26 03:35:05,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828661891] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 03:35:05,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072189042] [2021-08-26 03:35:05,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:05,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 03:35:05,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 03:35:05,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 03:35:05,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 03:35:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:05,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-26 03:35:05,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 03:35:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 03:35:05,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072189042] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 03:35:05,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 03:35:05,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-08-26 03:35:05,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581942931] [2021-08-26 03:35:05,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 03:35:05,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 03:35:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-26 03:35:05,944 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 03:35:06,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:06,128 INFO L93 Difference]: Finished difference Result 81 states and 86 transitions. [2021-08-26 03:35:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 03:35:06,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 27 [2021-08-26 03:35:06,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:06,129 INFO L225 Difference]: With dead ends: 81 [2021-08-26 03:35:06,129 INFO L226 Difference]: Without dead ends: 69 [2021-08-26 03:35:06,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 70.0ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-08-26 03:35:06,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-08-26 03:35:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 54. [2021-08-26 03:35:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0961538461538463) internal successors, (57), 53 states have internal predecessors, (57), 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 03:35:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2021-08-26 03:35:06,134 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 27 [2021-08-26 03:35:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:06,135 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2021-08-26 03:35:06,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 03:35:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2021-08-26 03:35:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-08-26 03:35:06,136 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:06,136 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:06,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-26 03:35:06,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 03:35:06,337 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:06,338 INFO L82 PathProgramCache]: Analyzing trace with hash 689857671, now seen corresponding path program 1 times [2021-08-26 03:35:06,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:06,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847055976] [2021-08-26 03:35:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:06,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:06,407 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 03:35:06,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:06,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847055976] [2021-08-26 03:35:06,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847055976] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:06,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:06,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 03:35:06,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666510076] [2021-08-26 03:35:06,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 03:35:06,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 03:35:06,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:35:06,410 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 03:35:06,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:06,444 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2021-08-26 03:35:06,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 03:35:06,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-08-26 03:35:06,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:06,445 INFO L225 Difference]: With dead ends: 85 [2021-08-26 03:35:06,445 INFO L226 Difference]: Without dead ends: 54 [2021-08-26 03:35:06,446 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 03:35:06,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-26 03:35:06,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-08-26 03:35:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0769230769230769) internal successors, (56), 53 states have internal predecessors, (56), 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 03:35:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2021-08-26 03:35:06,451 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 39 [2021-08-26 03:35:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:06,451 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2021-08-26 03:35:06,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 03:35:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2021-08-26 03:35:06,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-26 03:35:06,452 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:06,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:06,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 03:35:06,452 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:06,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:06,453 INFO L82 PathProgramCache]: Analyzing trace with hash 351533511, now seen corresponding path program 1 times [2021-08-26 03:35:06,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:06,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131301776] [2021-08-26 03:35:06,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:06,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:06,527 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 03:35:06,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:06,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131301776] [2021-08-26 03:35:06,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131301776] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:06,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:06,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 03:35:06,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625981820] [2021-08-26 03:35:06,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 03:35:06,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:06,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 03:35:06,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 03:35:06,534 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 03:35:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:06,606 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2021-08-26 03:35:06,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 03:35:06,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2021-08-26 03:35:06,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:06,609 INFO L225 Difference]: With dead ends: 56 [2021-08-26 03:35:06,610 INFO L226 Difference]: Without dead ends: 54 [2021-08-26 03:35:06,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:35:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-26 03:35:06,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2021-08-26 03:35:06,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 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 03:35:06,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2021-08-26 03:35:06,629 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 40 [2021-08-26 03:35:06,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:06,630 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2021-08-26 03:35:06,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 03:35:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2021-08-26 03:35:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-26 03:35:06,632 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 03:35:06,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 03:35:06,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 03:35:06,633 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 15 more)] === [2021-08-26 03:35:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 03:35:06,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1478549590, now seen corresponding path program 1 times [2021-08-26 03:35:06,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 03:35:06,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653533591] [2021-08-26 03:35:06,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 03:35:06,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 03:35:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 03:35:06,687 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 03:35:06,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 03:35:06,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653533591] [2021-08-26 03:35:06,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653533591] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 03:35:06,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 03:35:06,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 03:35:06,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072798050] [2021-08-26 03:35:06,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 03:35:06,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 03:35:06,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 03:35:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 03:35:06,693 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 03:35:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 03:35:06,795 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2021-08-26 03:35:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 03:35:06,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2021-08-26 03:35:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 03:35:06,800 INFO L225 Difference]: With dead ends: 59 [2021-08-26 03:35:06,800 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 03:35:06,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-26 03:35:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 03:35:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 03:35:06,801 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 03:35:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 03:35:06,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-08-26 03:35:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 03:35:06,802 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 03:35:06,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 03:35:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 03:35:06,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 03:35:06,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,805 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,806 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,808 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 03:35:06,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 03:35:06,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 03:35:06,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:06,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 03:35:07,251 INFO L853 garLoopResultBuilder]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-26 03:35:07,251 INFO L857 garLoopResultBuilder]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,251 INFO L853 garLoopResultBuilder]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-08-26 03:35:07,251 INFO L857 garLoopResultBuilder]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,252 INFO L853 garLoopResultBuilder]: At program point L18-23(line 55) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-08-26 03:35:07,252 INFO L857 garLoopResultBuilder]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,253 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,253 INFO L853 garLoopResultBuilder]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-08-26 03:35:07,254 INFO L857 garLoopResultBuilder]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,254 INFO L853 garLoopResultBuilder]: At program point L18-29(line 58) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-26 03:35:07,254 INFO L857 garLoopResultBuilder]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,254 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,254 INFO L857 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,256 INFO L853 garLoopResultBuilder]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (= ULTIMATE.start_main_~c~0 0)) [2021-08-26 03:35:07,259 INFO L857 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,259 INFO L857 garLoopResultBuilder]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,260 INFO L857 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,260 INFO L857 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,260 INFO L857 garLoopResultBuilder]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,262 INFO L857 garLoopResultBuilder]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,263 INFO L857 garLoopResultBuilder]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,263 INFO L857 garLoopResultBuilder]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,263 INFO L853 garLoopResultBuilder]: At program point L18-38(lines 17 22) the Hoare annotation is: (let ((.cse0 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse2 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse3 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse4 (<= 1 ULTIMATE.start_main_~cp~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~c~0 0)) (and .cse0 (<= 1 ULTIMATE.start_main_~c~0) .cse1 .cse2 .cse3 .cse4))) [2021-08-26 03:35:07,263 INFO L857 garLoopResultBuilder]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,264 INFO L857 garLoopResultBuilder]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,264 INFO L857 garLoopResultBuilder]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,264 INFO L857 garLoopResultBuilder]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,264 INFO L853 garLoopResultBuilder]: At program point L18-41(lines 17 22) the Hoare annotation is: (let ((.cse0 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse1 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse2 (<= (+ ULTIMATE.start_main_~c~0 2) ULTIMATE.start_main_~tokenlen~0)) (.cse3 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse4 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and (<= 1 ULTIMATE.start_main_~c~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~c~0 0)))) [2021-08-26 03:35:07,264 INFO L857 garLoopResultBuilder]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,265 INFO L857 garLoopResultBuilder]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,265 INFO L857 garLoopResultBuilder]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,265 INFO L857 garLoopResultBuilder]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,265 INFO L853 garLoopResultBuilder]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-26 03:35:07,265 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-08-26 03:35:07,265 INFO L857 garLoopResultBuilder]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,266 INFO L857 garLoopResultBuilder]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,266 INFO L857 garLoopResultBuilder]: For program point L36(lines 25 83) no Hoare annotation was computed. [2021-08-26 03:35:07,266 INFO L857 garLoopResultBuilder]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,267 INFO L853 garLoopResultBuilder]: At program point L69-1(lines 69 75) the Hoare annotation is: (let ((.cse0 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse1 (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) (.cse2 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse3 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~c~0 0)) (and (<= 1 ULTIMATE.start_main_~c~0) .cse0 .cse1 .cse2 .cse3))) [2021-08-26 03:35:07,267 INFO L853 garLoopResultBuilder]: At program point L18-47(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-26 03:35:07,267 INFO L857 garLoopResultBuilder]: For program point L19-16(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,267 INFO L857 garLoopResultBuilder]: For program point L18-48(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,267 INFO L857 garLoopResultBuilder]: For program point L19-17(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,268 INFO L853 garLoopResultBuilder]: At program point L18-50(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-08-26 03:35:07,268 INFO L857 garLoopResultBuilder]: For program point L18-51(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,268 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point L37(lines 25 83) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 03:35:07,270 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,270 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,270 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,270 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 80) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 79) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,271 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,272 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,272 INFO L853 garLoopResultBuilder]: At program point L47-1(lines 17 52) the Hoare annotation is: (and (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-26 03:35:07,273 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 52) no Hoare annotation was computed. [2021-08-26 03:35:07,273 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,273 INFO L860 garLoopResultBuilder]: At program point L81(lines 25 83) the Hoare annotation is: true [2021-08-26 03:35:07,274 INFO L857 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2021-08-26 03:35:07,274 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,274 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-26 03:35:07,274 INFO L853 garLoopResultBuilder]: At program point L65-1(lines 17 77) the Hoare annotation is: (let ((.cse0 (< ULTIMATE.start_main_~cp~0 ULTIMATE.start_main_~urilen~0)) (.cse1 (< 0 (+ ULTIMATE.start_main_~scheme~0 1))) (.cse2 (<= 1 ULTIMATE.start_main_~cp~0)) (.cse3 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~c~0) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~c~0 0)))) [2021-08-26 03:35:07,274 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 03:35:07,274 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,274 INFO L860 garLoopResultBuilder]: At program point L82(lines 24 83) the Hoare annotation is: true [2021-08-26 03:35:07,275 INFO L857 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2021-08-26 03:35:07,275 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-26 03:35:07,275 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-26 03:35:07,275 INFO L857 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,275 INFO L853 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-08-26 03:35:07,275 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,276 INFO L853 garLoopResultBuilder]: At program point L18-5(lines 17 22) the Hoare annotation is: (and (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-08-26 03:35:07,276 INFO L857 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,276 INFO L853 garLoopResultBuilder]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (<= 1 ULTIMATE.start_main_~cp~0) (<= (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0)) [2021-08-26 03:35:07,276 INFO L857 garLoopResultBuilder]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,276 INFO L857 garLoopResultBuilder]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,276 INFO L853 garLoopResultBuilder]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< 0 (+ ULTIMATE.start_main_~scheme~0 1)) (< (+ ULTIMATE.start_main_~cp~0 1) ULTIMATE.start_main_~urilen~0) (<= 1 ULTIMATE.start_main_~cp~0)) [2021-08-26 03:35:07,277 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-26 03:35:07,277 INFO L857 garLoopResultBuilder]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-08-26 03:35:07,277 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 83) no Hoare annotation was computed. [2021-08-26 03:35:07,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 03:35:07,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:35:07 BoogieIcfgContainer [2021-08-26 03:35:07,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 03:35:07,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 03:35:07,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 03:35:07,297 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 03:35:07,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:35:04" (3/4) ... [2021-08-26 03:35:07,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 03:35:07,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-08-26 03:35:07,322 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 03:35:07,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 03:35:07,323 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 03:35:07,363 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 03:35:07,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 03:35:07,365 INFO L168 Benchmark]: Toolchain (without parser) took 3604.64 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 42.8 MB in the beginning and 57.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,369 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:35:07,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.05 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 46.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 44.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,371 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 43.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 03:35:07,371 INFO L168 Benchmark]: RCFGBuilder took 465.80 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 37.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,372 INFO L168 Benchmark]: TraceAbstraction took 2794.96 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 26.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,372 INFO L168 Benchmark]: Witness Printer took 66.92 ms. Allocated memory is still 81.8 MB. Free memory was 26.0 MB in the beginning and 57.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 03:35:07,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 62.9 MB. Free memory was 43.5 MB in the beginning and 43.4 MB in the end (delta: 28.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.05 ms. Allocated memory is still 62.9 MB. Free memory was 42.6 MB in the beginning and 46.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.88 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 44.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.27 ms. Allocated memory is still 62.9 MB. Free memory was 44.4 MB in the beginning and 43.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 465.80 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 37.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2794.96 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 26.0 MB in the end (delta: 11.3 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.92 ms. Allocated memory is still 81.8 MB. Free memory was 26.0 MB in the beginning and 57.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 2.1 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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, 90 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 2715.6ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 14.2ms, AutomataDifference: 939.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 440.7ms, InitialAbstractionConstructionTime: 13.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 385 SDtfs, 255 SDslu, 315 SDs, 0 SdLazy, 315 SolverSat, 217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 476.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 154.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 95.6ms AutomataMinimizationTime, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 20 LocationsWithAnnotation, 20 PreInvPairs, 48 NumberOfFragments, 443 HoareAnnotationTreeSize, 20 FomulaSimplifications, 331 FormulaSimplificationTreeSizeReduction, 72.4ms HoareSimplificationTime, 20 FomulaSimplificationsInter, 300 FormulaSimplificationTreeSizeReductionInter, 358.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 31.6ms SsaConstructionTime, 171.0ms SatisfiabilityAnalysisTime, 567.4ms InterpolantComputationTime, 215 NumberOfCodeBlocks, 215 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 401 SizeOfPredicates, 4 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 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 18 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && 1 <= cp) && !(0 == cond)) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cond && 1 <= c) && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && c == 0) || (((((1 <= cond && 1 <= c) && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && c == 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((cp < urilen && 1 <= c) && 0 < scheme + 1) && 1 <= cp) && !(0 == cond)) || ((((cp < urilen && 0 < scheme + 1) && 1 <= cp) && !(0 == cond)) && c == 0) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && 1 <= cp) && !(0 == cond)) && cp + 1 <= urilen - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && !(0 == cond)) || (((((0 < scheme + 1 && cp + 1 < urilen) && c + 2 <= tokenlen) && 1 <= cp) && !(0 == cond)) && c == 0) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((cp < urilen && 0 < scheme + 1) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond)) && c == 0) || ((((1 <= c && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp) && !(0 == cond)) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 < scheme + 1 && cp + 1 < urilen) && 1 <= cp) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && 1 <= cp) && cp + 1 <= urilen - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((1 <= cond && 0 < scheme + 1) && cp + 1 < urilen) && 1 <= cp RESULT: Ultimate proved your program to be correct! [2021-08-26 03:35:07,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...