./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/apache-get-tag.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invgen/apache-get-tag.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 2d5e1e94b71e060a77443e2afd511bc50cc1649d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 10:56:17,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 10:56:17,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 10:56:17,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 10:56:17,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 10:56:17,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 10:56:17,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 10:56:17,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 10:56:17,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 10:56:17,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 10:56:17,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 10:56:17,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 10:56:17,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 10:56:17,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 10:56:17,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 10:56:17,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 10:56:17,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 10:56:17,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 10:56:17,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 10:56:17,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 10:56:17,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 10:56:17,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 10:56:17,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 10:56:17,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 10:56:17,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 10:56:17,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 10:56:17,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 10:56:17,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 10:56:17,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 10:56:17,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 10:56:17,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 10:56:17,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 10:56:17,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 10:56:17,699 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 10:56:17,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 10:56:17,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 10:56:17,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 10:56:17,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 10:56:17,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 10:56:17,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 10:56:17,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 10:56:17,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 10:56:17,724 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 10:56:17,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 10:56:17,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 10:56:17,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 10:56:17,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 10:56:17,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 10:56:17,726 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 10:56:17,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 10:56:17,726 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 10:56:17,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 10:56:17,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 10:56:17,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 10:56:17,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 10:56:17,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 10:56:17,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 10:56:17,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 10:56:17,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 10:56:17,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 10:56:17,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 10:56:17,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 10:56:17,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 10:56:17,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 10:56:17,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:56:17,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 10:56:17,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 10:56:17,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d5e1e94b71e060a77443e2afd511bc50cc1649d [2021-08-29 10:56:18,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 10:56:18,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 10:56:18,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 10:56:18,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 10:56:18,077 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 10:56:18,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-08-29 10:56:18,135 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4727c8/1b1405642801422cb1ac43c53a799c4e/FLAG26c6ebdd7 [2021-08-29 10:56:18,616 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 10:56:18,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2021-08-29 10:56:18,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4727c8/1b1405642801422cb1ac43c53a799c4e/FLAG26c6ebdd7 [2021-08-29 10:56:18,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ba4727c8/1b1405642801422cb1ac43c53a799c4e [2021-08-29 10:56:18,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 10:56:18,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 10:56:18,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 10:56:18,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 10:56:18,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 10:56:18,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c116404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18, skipping insertion in model container [2021-08-29 10:56:18,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 10:56:18,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 10:56:18,786 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-get-tag.i[893,906] [2021-08-29 10:56:18,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:56:18,820 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 10:56:18,833 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-get-tag.i[893,906] [2021-08-29 10:56:18,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:56:18,868 INFO L208 MainTranslator]: Completed translation [2021-08-29 10:56:18,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18 WrapperNode [2021-08-29 10:56:18,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 10:56:18,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 10:56:18,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 10:56:18,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 10:56:18,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 10:56:18,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 10:56:18,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 10:56:18,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 10:56:18,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 10:56:18,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 10:56:18,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 10:56:18,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 10:56:18,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (1/1) ... [2021-08-29 10:56:18,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:56:18,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 10:56:18,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 10:56:19,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 10:56:19,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 10:56:19,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 10:56:19,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 10:56:19,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 10:56:19,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 10:56:19,224 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-08-29 10:56:19,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:56:19 BoogieIcfgContainer [2021-08-29 10:56:19,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 10:56:19,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 10:56:19,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 10:56:19,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 10:56:19,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:56:18" (1/3) ... [2021-08-29 10:56:19,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39356fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:56:19, skipping insertion in model container [2021-08-29 10:56:19,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:56:18" (2/3) ... [2021-08-29 10:56:19,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39356fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:56:19, skipping insertion in model container [2021-08-29 10:56:19,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:56:19" (3/3) ... [2021-08-29 10:56:19,232 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2021-08-29 10:56:19,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 10:56:19,237 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-08-29 10:56:19,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 10:56:19,295 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 10:56:19,295 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-08-29 10:56:19,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.6984126984126984) internal successors, (107), 79 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:19,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 10:56:19,321 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:56:19,322 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:56:19,323 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-08-29 10:56:19,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:56:19,331 INFO L82 PathProgramCache]: Analyzing trace with hash 119561572, now seen corresponding path program 1 times [2021-08-29 10:56:19,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:56:19,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259223945] [2021-08-29 10:56:19,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:19,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:56:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:19,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:56:19,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259223945] [2021-08-29 10:56:19,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259223945] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:56:19,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:56:19,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 10:56:19,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992894939] [2021-08-29 10:56:19,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 10:56:19,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:56:19,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 10:56:19,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:56:19,528 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.6984126984126984) internal successors, (107), 79 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:56:19,761 INFO L93 Difference]: Finished difference Result 156 states and 209 transitions. [2021-08-29 10:56:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 10:56:19,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 10:56:19,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:56:19,774 INFO L225 Difference]: With dead ends: 156 [2021-08-29 10:56:19,774 INFO L226 Difference]: Without dead ends: 76 [2021-08-29 10:56:19,777 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:56:19,780 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.91ms IncrementalHoareTripleChecker+Time [2021-08-29 10:56:19,781 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 87 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 209.91ms Time] [2021-08-29 10:56:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-08-29 10:56:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-08-29 10:56:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 75 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:19,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2021-08-29 10:56:19,811 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 8 [2021-08-29 10:56:19,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:56:19,811 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2021-08-29 10:56:19,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:19,811 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2021-08-29 10:56:19,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 10:56:19,812 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:56:19,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:56:19,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 10:56:19,813 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-08-29 10:56:19,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:56:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash 119567532, now seen corresponding path program 1 times [2021-08-29 10:56:19,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:56:19,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225050404] [2021-08-29 10:56:19,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:19,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:56:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:19,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:19,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:56:19,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225050404] [2021-08-29 10:56:19,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225050404] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:56:19,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:56:19,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 10:56:19,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642900771] [2021-08-29 10:56:19,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 10:56:19,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:56:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 10:56:19,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:56:19,871 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:56:20,009 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2021-08-29 10:56:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 10:56:20,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 10:56:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:56:20,010 INFO L225 Difference]: With dead ends: 80 [2021-08-29 10:56:20,011 INFO L226 Difference]: Without dead ends: 64 [2021-08-29 10:56:20,011 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.11ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:56:20,012 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 60 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.36ms IncrementalHoareTripleChecker+Time [2021-08-29 10:56:20,013 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 0 Invalid, 142 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [39 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 105.36ms Time] [2021-08-29 10:56:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-08-29 10:56:20,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2021-08-29 10:56:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 59 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2021-08-29 10:56:20,021 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 8 [2021-08-29 10:56:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:56:20,022 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2021-08-29 10:56:20,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2021-08-29 10:56:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 10:56:20,022 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:56:20,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:56:20,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 10:56:20,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-08-29 10:56:20,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:56:20,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1059562897, now seen corresponding path program 1 times [2021-08-29 10:56:20,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:56:20,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701235225] [2021-08-29 10:56:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:20,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:56:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:20,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:56:20,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701235225] [2021-08-29 10:56:20,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701235225] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:56:20,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:56:20,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 10:56:20,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085534523] [2021-08-29 10:56:20,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 10:56:20,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:56:20,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 10:56:20,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:56:20,089 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:56:20,227 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2021-08-29 10:56:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 10:56:20,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 10:56:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:56:20,231 INFO L225 Difference]: With dead ends: 64 [2021-08-29 10:56:20,231 INFO L226 Difference]: Without dead ends: 49 [2021-08-29 10:56:20,231 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.48ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:56:20,239 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.42ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.16ms IncrementalHoareTripleChecker+Time [2021-08-29 10:56:20,241 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 170 Unknown, 0 Unchecked, 1.42ms Time], IncrementalHoareTripleChecker [21 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 120.16ms Time] [2021-08-29 10:56:20,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-29 10:56:20,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2021-08-29 10:56:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.2) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2021-08-29 10:56:20,258 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 10 [2021-08-29 10:56:20,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:56:20,258 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2021-08-29 10:56:20,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,258 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2021-08-29 10:56:20,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 10:56:20,259 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:56:20,259 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:56:20,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 10:56:20,259 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-08-29 10:56:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:56:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2103968171, now seen corresponding path program 1 times [2021-08-29 10:56:20,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:56:20,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062383320] [2021-08-29 10:56:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:20,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:56:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:20,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:20,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:56:20,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062383320] [2021-08-29 10:56:20,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062383320] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:56:20,307 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:56:20,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-29 10:56:20,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947064276] [2021-08-29 10:56:20,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 10:56:20,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:56:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 10:56:20,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:56:20,308 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-08-29 10:56:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:56:20,461 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2021-08-29 10:56:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-29 10:56:20,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2021-08-29 10:56:20,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:56:20,466 INFO L225 Difference]: With dead ends: 61 [2021-08-29 10:56:20,466 INFO L226 Difference]: Without dead ends: 57 [2021-08-29 10:56:20,467 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.58ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-29 10:56:20,476 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 70 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.22ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 100.88ms IncrementalHoareTripleChecker+Time [2021-08-29 10:56:20,477 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 0 Invalid, 158 Unknown, 0 Unchecked, 3.22ms Time], IncrementalHoareTripleChecker [27 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 100.88ms Time] [2021-08-29 10:56:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-08-29 10:56:20,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2021-08-29 10:56:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.18) internal successors, (59), 54 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2021-08-29 10:56:20,487 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 11 [2021-08-29 10:56:20,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:56:20,487 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2021-08-29 10:56:20,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-08-29 10:56:20,488 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2021-08-29 10:56:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 10:56:20,489 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:56:20,489 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:56:20,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 10:56:20,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-08-29 10:56:20,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:56:20,491 INFO L82 PathProgramCache]: Analyzing trace with hash -125691866, now seen corresponding path program 1 times [2021-08-29 10:56:20,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:56:20,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254535318] [2021-08-29 10:56:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:20,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:56:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:20,650 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:20,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:56:20,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254535318] [2021-08-29 10:56:20,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254535318] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 10:56:20,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447936867] [2021-08-29 10:56:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:56:20,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 10:56:20,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 10:56:20,673 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) [2021-08-29 10:56:20,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 10:56:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:56:20,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 10:56:20,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 10:56:21,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:56:21,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 10:56:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-29 10:56:21,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447936867] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 10:56:21,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 10:56:21,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2021-08-29 10:56:21,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348836071] [2021-08-29 10:56:21,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-29 10:56:21,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:56:21,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-29 10:56:21,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-08-29 10:56:21,196 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:21,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:56:21,503 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2021-08-29 10:56:21,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-29 10:56:21,504 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 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 18 [2021-08-29 10:56:21,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:56:21,505 INFO L225 Difference]: With dead ends: 87 [2021-08-29 10:56:21,505 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 10:56:21,506 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 177.19ms TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2021-08-29 10:56:21,507 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 145 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.83ms SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 199.69ms IncrementalHoareTripleChecker+Time [2021-08-29 10:56:21,507 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 0 Invalid, 379 Unknown, 0 Unchecked, 5.83ms Time], IncrementalHoareTripleChecker [124 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 199.69ms Time] [2021-08-29 10:56:21,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 10:56:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 10:56:21,509 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) [2021-08-29 10:56:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 10:56:21,509 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-08-29 10:56:21,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:56:21,510 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 10:56:21,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:56:21,512 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 10:56:21,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 10:56:21,515 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2021-08-29 10:56:21,516 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2021-08-29 10:56:21,517 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2021-08-29 10:56:21,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2021-08-29 10:56:21,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2021-08-29 10:56:21,518 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2021-08-29 10:56:21,519 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2021-08-29 10:56:21,524 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2021-08-29 10:56:21,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2021-08-29 10:56:21,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2021-08-29 10:56:21,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2021-08-29 10:56:21,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2021-08-29 10:56:21,525 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2021-08-29 10:56:21,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2021-08-29 10:56:21,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2021-08-29 10:56:21,526 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2021-08-29 10:56:21,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 10:56:21,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 10:56:21,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 10:56:21,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,827 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:21,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:56:22,013 INFO L854 garLoopResultBuilder]: At program point L18-17(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-08-29 10:56:22,013 INFO L858 garLoopResultBuilder]: For program point L18-18(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,013 INFO L854 garLoopResultBuilder]: At program point L18-20(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,013 INFO L858 garLoopResultBuilder]: For program point L18-21(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,013 INFO L858 garLoopResultBuilder]: For program point L18-24(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,014 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,014 INFO L854 garLoopResultBuilder]: At program point L18-26(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,014 INFO L858 garLoopResultBuilder]: For program point L18-27(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,014 INFO L854 garLoopResultBuilder]: At program point L18-29(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-08-29 10:56:22,014 INFO L858 garLoopResultBuilder]: For program point L18-30(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,015 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L854 garLoopResultBuilder]: At program point L18-32(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L19-2(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L18-33(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,016 INFO L858 garLoopResultBuilder]: For program point L19-5(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L18-36(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L19-6(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L19-7(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L854 garLoopResultBuilder]: At program point L18-38(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L19-8(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L18-39(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,017 INFO L858 garLoopResultBuilder]: For program point L19-9(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,018 INFO L858 garLoopResultBuilder]: For program point L19-10(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,018 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,021 INFO L854 garLoopResultBuilder]: At program point L18-41(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-08-29 10:56:22,021 INFO L858 garLoopResultBuilder]: For program point L19-11(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,021 INFO L858 garLoopResultBuilder]: For program point L18-42(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,022 INFO L858 garLoopResultBuilder]: For program point L19-12(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,022 INFO L858 garLoopResultBuilder]: For program point L19-13(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,022 INFO L854 garLoopResultBuilder]: At program point L18-44(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,022 INFO L858 garLoopResultBuilder]: For program point L19-14(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,022 INFO L858 garLoopResultBuilder]: For program point L18-45(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,022 INFO L858 garLoopResultBuilder]: For program point L19-15(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L861 garLoopResultBuilder]: At program point L18-47(lines 17 22) the Hoare annotation is: true [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 68) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 54 68) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 40) no Hoare annotation was computed. [2021-08-29 10:56:22,023 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,026 INFO L858 garLoopResultBuilder]: For program point L55(lines 55 64) no Hoare annotation was computed. [2021-08-29 10:56:22,026 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,026 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 10:56:22,026 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,027 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 63) no Hoare annotation was computed. [2021-08-29 10:56:22,027 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,027 INFO L861 garLoopResultBuilder]: At program point L76(lines 24 77) the Hoare annotation is: true [2021-08-29 10:56:22,027 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,027 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,027 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,028 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,029 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,029 INFO L854 garLoopResultBuilder]: At program point L48-2(lines 48 72) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) [2021-08-29 10:56:22,029 INFO L858 garLoopResultBuilder]: For program point L48-3(lines 48 72) no Hoare annotation was computed. [2021-08-29 10:56:22,029 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 10:56:22,029 INFO L854 garLoopResultBuilder]: At program point L32-2(lines 32 44) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (and (= ULTIMATE.start_main_~t~0 0) (< 0 (+ ULTIMATE.start_main_~tagbuf_len~0 1)))) [2021-08-29 10:56:22,029 INFO L858 garLoopResultBuilder]: For program point L32-3(lines 32 44) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 68) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,030 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,031 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,031 INFO L858 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,031 INFO L854 garLoopResultBuilder]: At program point L18-8(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,031 INFO L858 garLoopResultBuilder]: For program point L18-9(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,032 INFO L854 garLoopResultBuilder]: At program point L18-11(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0)) [2021-08-29 10:56:22,032 INFO L858 garLoopResultBuilder]: For program point L18-12(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,032 INFO L854 garLoopResultBuilder]: At program point L18-14(lines 17 22) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~t~0) (<= (+ ULTIMATE.start_main_~t~0 1) ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2021-08-29 10:56:22,032 INFO L858 garLoopResultBuilder]: For program point L18-15(lines 18 20) no Hoare annotation was computed. [2021-08-29 10:56:22,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 10:56:22,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:56:22 BoogieIcfgContainer [2021-08-29 10:56:22,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 10:56:22,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 10:56:22,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 10:56:22,066 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 10:56:22,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:56:19" (3/4) ... [2021-08-29 10:56:22,069 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 10:56:22,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-08-29 10:56:22,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 10:56:22,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 10:56:22,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 10:56:22,139 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 10:56:22,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 10:56:22,139 INFO L158 Benchmark]: Toolchain (without parser) took 3496.33ms. Allocated memory was 52.4MB in the beginning and 92.3MB in the end (delta: 39.8MB). Free memory was 29.9MB in the beginning and 69.1MB in the end (delta: -39.3MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,140 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:56:22,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.98ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 31.4MB in the end (delta: -1.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 52.4MB. Free memory was 31.4MB in the beginning and 29.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:56:22,140 INFO L158 Benchmark]: Boogie Preprocessor took 42.10ms. Allocated memory is still 52.4MB. Free memory was 29.4MB in the beginning and 28.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,140 INFO L158 Benchmark]: RCFGBuilder took 263.83ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 28.0MB in the beginning and 51.9MB in the end (delta: -23.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,141 INFO L158 Benchmark]: TraceAbstraction took 2838.56ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.3MB in the beginning and 73.3MB in the end (delta: -22.0MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,141 INFO L158 Benchmark]: Witness Printer took 72.88ms. Allocated memory is still 92.3MB. Free memory was 73.3MB in the beginning and 69.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 10:56:22,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.98ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 31.4MB in the end (delta: -1.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 52.4MB. Free memory was 31.4MB in the beginning and 29.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.10ms. Allocated memory is still 52.4MB. Free memory was 29.4MB in the beginning and 28.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.83ms. Allocated memory was 52.4MB in the beginning and 75.5MB in the end (delta: 23.1MB). Free memory was 28.0MB in the beginning and 51.9MB in the end (delta: -23.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2838.56ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.3MB in the beginning and 73.3MB in the end (delta: -22.0MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Witness Printer took 72.88ms. Allocated memory is still 92.3MB. Free memory was 73.3MB in the beginning and 69.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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, 80 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 2750.27ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 17.79ms, AutomataDifference: 1067.60ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 271.16ms, InitialAbstractionConstructionTime: 10.78ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 292 SdHoareTripleChecker+Valid, 736.00ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 572.03ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 181 mSDsCounter, 211 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 725 IncrementalHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 211 mSolverCounterUnsat, 0 mSDtfsCounter, 725 mSolverCounterSat, 13.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 246.39ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 50.75ms AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 48 NumberOfFragments, 181 HoareAnnotationTreeSize, 16 FomulaSimplifications, 449 FormulaSimplificationTreeSizeReduction, 88.21ms HoareSimplificationTime, 16 FomulaSimplificationsInter, 221 FormulaSimplificationTreeSizeReductionInter, 175.10ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 20.98ms SsaConstructionTime, 103.30ms SatisfiabilityAnalysisTime, 699.13ms InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 3 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 2/18 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 16 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((1 <= tagbuf_len && 0 <= t) && 1 <= cond) && t <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((0 <= t && 1 <= cond) && t <= tagbuf_len) || (t == 0 && 0 < tagbuf_len + 1) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && 1 <= cond) && t + 1 <= tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= t && t + 1 <= tagbuf_len) && !(0 == cond) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-29 10:56:22,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...