./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 401165f607b436d9ebbfd488e4fcb012fbb55fb6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 21:44:24,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:44:24,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:44:25,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:44:25,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:44:25,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:44:25,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:44:25,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:44:25,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:44:25,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:44:25,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:44:25,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:44:25,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:44:25,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:44:25,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:44:25,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:44:25,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:44:25,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:44:25,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:44:25,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:44:25,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:44:25,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:44:25,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:44:25,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:44:25,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:44:25,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:44:25,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:44:25,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:44:25,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:44:25,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:44:25,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:44:25,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:44:25,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:44:25,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:44:25,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:44:25,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:44:25,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:44:25,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:44:25,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:44:25,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:44:25,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:44:25,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:44:25,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:44:25,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:44:25,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:44:25,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:44:25,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:44:25,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:44:25,062 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:44:25,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:44:25,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:44:25,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:44:25,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:44:25,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:44:25,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:44:25,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:25,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:44:25,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:44:25,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:44:25,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:44:25,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:44:25,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:44:25,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:44:25,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 401165f607b436d9ebbfd488e4fcb012fbb55fb6 [2021-08-25 21:44:25,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:44:25,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:44:25,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:44:25,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:44:25,329 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:44:25,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label10.c [2021-08-25 21:44:25,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f087749ff/eb8145cbda7f408b8de0b6126b6d5048/FLAG9a0fd3b5a [2021-08-25 21:44:25,870 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:44:25,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label10.c [2021-08-25 21:44:25,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f087749ff/eb8145cbda7f408b8de0b6126b6d5048/FLAG9a0fd3b5a [2021-08-25 21:44:25,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f087749ff/eb8145cbda7f408b8de0b6126b6d5048 [2021-08-25 21:44:25,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:44:25,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:44:25,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:44:25,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:44:25,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:44:25,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:25" (1/1) ... [2021-08-25 21:44:25,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306f3633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:25, skipping insertion in model container [2021-08-25 21:44:25,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:44:25" (1/1) ... [2021-08-25 21:44:25,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:44:25,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:44:26,057 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/eca-rers2012/Problem11_label10.c[3268,3281] [2021-08-25 21:44:26,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:44:26,283 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:44:26,293 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/eca-rers2012/Problem11_label10.c[3268,3281] [2021-08-25 21:44:26,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:44:26,393 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:44:26,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26 WrapperNode [2021-08-25 21:44:26,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:44:26,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:44:26,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:44:26,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:44:26,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:44:26,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:44:26,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:44:26,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:44:26,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:44:26,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:44:26,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:44:26,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:44:26,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (1/1) ... [2021-08-25 21:44:26,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:44:26,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:26,654 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) [2021-08-25 21:44:26,677 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 [2021-08-25 21:44:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:44:26,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:44:26,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:44:26,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:44:27,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:44:27,969 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:44:27,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:27 BoogieIcfgContainer [2021-08-25 21:44:27,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:44:27,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:44:27,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:44:27,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:44:27,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:44:25" (1/3) ... [2021-08-25 21:44:27,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad5056d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:44:27, skipping insertion in model container [2021-08-25 21:44:27,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:44:26" (2/3) ... [2021-08-25 21:44:27,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad5056d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:44:27, skipping insertion in model container [2021-08-25 21:44:27,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:27" (3/3) ... [2021-08-25 21:44:27,976 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label10.c [2021-08-25 21:44:27,980 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:44:27,980 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:44:28,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:44:28,027 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 [2021-08-25 21:44:28,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:44:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-08-25 21:44:28,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-25 21:44:28,047 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:28,047 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:28,048 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:28,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2021-08-25 21:44:28,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:28,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802765894] [2021-08-25 21:44:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:28,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:28,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:28,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802765894] [2021-08-25 21:44:28,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802765894] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:28,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:28,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:28,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092524935] [2021-08-25 21:44:28,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:28,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:28,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:28,217 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-08-25 21:44:29,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:29,258 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-08-25 21:44:29,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2021-08-25 21:44:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:29,275 INFO L225 Difference]: With dead ends: 776 [2021-08-25 21:44:29,276 INFO L226 Difference]: Without dead ends: 413 [2021-08-25 21:44:29,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-08-25 21:44:29,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-08-25 21:44:29,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 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) [2021-08-25 21:44:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-08-25 21:44:29,332 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 22 [2021-08-25 21:44:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:29,350 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-08-25 21:44:29,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2021-08-25 21:44:29,350 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-08-25 21:44:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-25 21:44:29,352 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:29,352 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:29,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:44:29,353 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:29,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1871415266, now seen corresponding path program 1 times [2021-08-25 21:44:29,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:29,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32159218] [2021-08-25 21:44:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:29,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:29,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:29,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32159218] [2021-08-25 21:44:29,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32159218] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:29,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:29,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:29,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610641209] [2021-08-25 21:44:29,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:29,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:29,455 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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) [2021-08-25 21:44:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:30,194 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-08-25 21:44:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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 90 [2021-08-25 21:44:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:30,198 INFO L225 Difference]: With dead ends: 1209 [2021-08-25 21:44:30,198 INFO L226 Difference]: Without dead ends: 800 [2021-08-25 21:44:30,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-08-25 21:44:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-08-25 21:44:30,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 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) [2021-08-25 21:44:30,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-08-25 21:44:30,233 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 90 [2021-08-25 21:44:30,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:30,233 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-08-25 21:44:30,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 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) [2021-08-25 21:44:30,233 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-08-25 21:44:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-25 21:44:30,235 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:30,236 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:30,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:44:30,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:30,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:30,236 INFO L82 PathProgramCache]: Analyzing trace with hash 562007972, now seen corresponding path program 1 times [2021-08-25 21:44:30,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:30,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870213849] [2021-08-25 21:44:30,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:30,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:30,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:30,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870213849] [2021-08-25 21:44:30,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870213849] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:30,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:30,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:30,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554233271] [2021-08-25 21:44:30,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:30,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:30,357 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2021-08-25 21:44:31,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:31,122 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-08-25 21:44:31,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:31,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2021-08-25 21:44:31,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:31,127 INFO L225 Difference]: With dead ends: 1942 [2021-08-25 21:44:31,127 INFO L226 Difference]: Without dead ends: 1157 [2021-08-25 21:44:31,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-08-25 21:44:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-08-25 21:44:31,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 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) [2021-08-25 21:44:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-08-25 21:44:31,143 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 91 [2021-08-25 21:44:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:31,144 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-08-25 21:44:31,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2021-08-25 21:44:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-08-25 21:44:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-08-25 21:44:31,146 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:31,146 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:31,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:44:31,147 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:31,156 INFO L82 PathProgramCache]: Analyzing trace with hash -945177690, now seen corresponding path program 1 times [2021-08-25 21:44:31,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:31,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900947711] [2021-08-25 21:44:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:31,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:31,278 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-08-25 21:44:31,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:31,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900947711] [2021-08-25 21:44:31,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900947711] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:31,280 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:31,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:44:31,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806440471] [2021-08-25 21:44:31,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:31,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:31,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:31,282 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-08-25 21:44:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:31,963 INFO L93 Difference]: Finished difference Result 2502 states and 3339 transitions. [2021-08-25 21:44:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 134 [2021-08-25 21:44:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:31,968 INFO L225 Difference]: With dead ends: 2502 [2021-08-25 21:44:31,969 INFO L226 Difference]: Without dead ends: 1532 [2021-08-25 21:44:31,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:31,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2021-08-25 21:44:31,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2021-08-25 21:44:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.2619203135205748) internal successors, (1932), 1531 states have internal predecessors, (1932), 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) [2021-08-25 21:44:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1932 transitions. [2021-08-25 21:44:31,988 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1932 transitions. Word has length 134 [2021-08-25 21:44:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:31,988 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 1932 transitions. [2021-08-25 21:44:31,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2021-08-25 21:44:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1932 transitions. [2021-08-25 21:44:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-08-25 21:44:31,990 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:31,990 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:31,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:44:31,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash 2122268031, now seen corresponding path program 1 times [2021-08-25 21:44:31,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:31,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258300961] [2021-08-25 21:44:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:31,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:32,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:32,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258300961] [2021-08-25 21:44:32,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258300961] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:32,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:32,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:32,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777411586] [2021-08-25 21:44:32,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:32,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:32,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:32,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:32,056 INFO L87 Difference]: Start difference. First operand 1532 states and 1932 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-08-25 21:44:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:32,696 INFO L93 Difference]: Finished difference Result 3644 states and 4738 transitions. [2021-08-25 21:44:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2021-08-25 21:44:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:32,702 INFO L225 Difference]: With dead ends: 3644 [2021-08-25 21:44:32,702 INFO L226 Difference]: Without dead ends: 2298 [2021-08-25 21:44:32,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-08-25 21:44:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2295. [2021-08-25 21:44:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2294 states have (on average 1.2654751525719268) internal successors, (2903), 2294 states have internal predecessors, (2903), 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) [2021-08-25 21:44:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2903 transitions. [2021-08-25 21:44:32,731 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2903 transitions. Word has length 149 [2021-08-25 21:44:32,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:32,732 INFO L470 AbstractCegarLoop]: Abstraction has 2295 states and 2903 transitions. [2021-08-25 21:44:32,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2021-08-25 21:44:32,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2903 transitions. [2021-08-25 21:44:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-08-25 21:44:32,734 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:32,734 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:32,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:44:32,734 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:32,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:32,734 INFO L82 PathProgramCache]: Analyzing trace with hash -259742338, now seen corresponding path program 1 times [2021-08-25 21:44:32,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:32,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490102864] [2021-08-25 21:44:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:32,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:32,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:32,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490102864] [2021-08-25 21:44:32,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490102864] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:32,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:32,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:32,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124398234] [2021-08-25 21:44:32,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:32,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:32,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:32,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:32,814 INFO L87 Difference]: Start difference. First operand 2295 states and 2903 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-08-25 21:44:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:33,486 INFO L93 Difference]: Finished difference Result 5528 states and 7095 transitions. [2021-08-25 21:44:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:33,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 202 [2021-08-25 21:44:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:33,495 INFO L225 Difference]: With dead ends: 5528 [2021-08-25 21:44:33,495 INFO L226 Difference]: Without dead ends: 3419 [2021-08-25 21:44:33,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:33,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-08-25 21:44:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3218. [2021-08-25 21:44:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 1.2377991917935964) internal successors, (3982), 3217 states have internal predecessors, (3982), 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) [2021-08-25 21:44:33,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 3982 transitions. [2021-08-25 21:44:33,546 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 3982 transitions. Word has length 202 [2021-08-25 21:44:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:33,547 INFO L470 AbstractCegarLoop]: Abstraction has 3218 states and 3982 transitions. [2021-08-25 21:44:33,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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) [2021-08-25 21:44:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 3982 transitions. [2021-08-25 21:44:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-08-25 21:44:33,549 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:33,549 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:33,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 21:44:33,550 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1079368312, now seen corresponding path program 1 times [2021-08-25 21:44:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:33,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848345204] [2021-08-25 21:44:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:33,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:33,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-25 21:44:33,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:33,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848345204] [2021-08-25 21:44:33,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848345204] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:33,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:33,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:33,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301968831] [2021-08-25 21:44:33,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:33,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:33,619 INFO L87 Difference]: Start difference. First operand 3218 states and 3982 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-08-25 21:44:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:34,247 INFO L93 Difference]: Finished difference Result 7371 states and 9143 transitions. [2021-08-25 21:44:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:34,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 203 [2021-08-25 21:44:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:34,257 INFO L225 Difference]: With dead ends: 7371 [2021-08-25 21:44:34,258 INFO L226 Difference]: Without dead ends: 4155 [2021-08-25 21:44:34,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:34,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2021-08-25 21:44:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4138. [2021-08-25 21:44:34,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4138 states, 4137 states have (on average 1.2211747643219724) internal successors, (5052), 4137 states have internal predecessors, (5052), 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) [2021-08-25 21:44:34,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5052 transitions. [2021-08-25 21:44:34,311 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5052 transitions. Word has length 203 [2021-08-25 21:44:34,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:34,311 INFO L470 AbstractCegarLoop]: Abstraction has 4138 states and 5052 transitions. [2021-08-25 21:44:34,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-08-25 21:44:34,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5052 transitions. [2021-08-25 21:44:34,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-08-25 21:44:34,313 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:34,313 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:34,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 21:44:34,313 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:34,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:34,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1976650713, now seen corresponding path program 1 times [2021-08-25 21:44:34,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:34,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051502443] [2021-08-25 21:44:34,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:34,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:44:34,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:34,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051502443] [2021-08-25 21:44:34,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051502443] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:34,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:34,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:34,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319679627] [2021-08-25 21:44:34,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:34,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:34,393 INFO L87 Difference]: Start difference. First operand 4138 states and 5052 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-08-25 21:44:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:35,095 INFO L93 Difference]: Finished difference Result 9207 states and 11353 transitions. [2021-08-25 21:44:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 204 [2021-08-25 21:44:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:35,112 INFO L225 Difference]: With dead ends: 9207 [2021-08-25 21:44:35,113 INFO L226 Difference]: Without dead ends: 5071 [2021-08-25 21:44:35,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:35,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2021-08-25 21:44:35,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 4874. [2021-08-25 21:44:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4873 states have (on average 1.2087010055407346) internal successors, (5890), 4873 states have internal predecessors, (5890), 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) [2021-08-25 21:44:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 5890 transitions. [2021-08-25 21:44:35,172 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 5890 transitions. Word has length 204 [2021-08-25 21:44:35,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:35,172 INFO L470 AbstractCegarLoop]: Abstraction has 4874 states and 5890 transitions. [2021-08-25 21:44:35,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-08-25 21:44:35,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 5890 transitions. [2021-08-25 21:44:35,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-08-25 21:44:35,174 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:35,174 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:35,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 21:44:35,175 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:35,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1214132377, now seen corresponding path program 1 times [2021-08-25 21:44:35,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:35,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135211428] [2021-08-25 21:44:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:35,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:35,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:35,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135211428] [2021-08-25 21:44:35,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135211428] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:35,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:35,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:44:35,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398855122] [2021-08-25 21:44:35,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:35,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:35,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:35,289 INFO L87 Difference]: Start difference. First operand 4874 states and 5890 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-08-25 21:44:36,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:36,572 INFO L93 Difference]: Finished difference Result 15870 states and 19335 transitions. [2021-08-25 21:44:36,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:36,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 224 [2021-08-25 21:44:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:36,601 INFO L225 Difference]: With dead ends: 15870 [2021-08-25 21:44:36,601 INFO L226 Difference]: Without dead ends: 10998 [2021-08-25 21:44:36,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:36,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2021-08-25 21:44:36,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 8953. [2021-08-25 21:44:36,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8952 states have (on average 1.1907953529937445) internal successors, (10660), 8952 states have internal predecessors, (10660), 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) [2021-08-25 21:44:36,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 10660 transitions. [2021-08-25 21:44:36,783 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 10660 transitions. Word has length 224 [2021-08-25 21:44:36,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:36,784 INFO L470 AbstractCegarLoop]: Abstraction has 8953 states and 10660 transitions. [2021-08-25 21:44:36,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2021-08-25 21:44:36,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 10660 transitions. [2021-08-25 21:44:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-08-25 21:44:36,787 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:36,788 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:36,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:44:36,788 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:36,789 INFO L82 PathProgramCache]: Analyzing trace with hash -205904018, now seen corresponding path program 1 times [2021-08-25 21:44:36,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:36,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426858106] [2021-08-25 21:44:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:36,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:36,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:36,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426858106] [2021-08-25 21:44:36,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426858106] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:36,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:36,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:44:36,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317348597] [2021-08-25 21:44:36,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:36,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:36,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:36,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:36,894 INFO L87 Difference]: Start difference. First operand 8953 states and 10660 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2021-08-25 21:44:38,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:38,242 INFO L93 Difference]: Finished difference Result 22715 states and 27384 transitions. [2021-08-25 21:44:38,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:38,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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 234 [2021-08-25 21:44:38,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:38,264 INFO L225 Difference]: With dead ends: 22715 [2021-08-25 21:44:38,265 INFO L226 Difference]: Without dead ends: 13764 [2021-08-25 21:44:38,274 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:38,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13764 states. [2021-08-25 21:44:38,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13764 to 13378. [2021-08-25 21:44:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 1.1921955595424982) internal successors, (15948), 13377 states have internal predecessors, (15948), 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) [2021-08-25 21:44:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 15948 transitions. [2021-08-25 21:44:38,425 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 15948 transitions. Word has length 234 [2021-08-25 21:44:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:38,425 INFO L470 AbstractCegarLoop]: Abstraction has 13378 states and 15948 transitions. [2021-08-25 21:44:38,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2021-08-25 21:44:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 15948 transitions. [2021-08-25 21:44:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-08-25 21:44:38,428 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:38,428 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:38,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 21:44:38,429 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:38,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:38,429 INFO L82 PathProgramCache]: Analyzing trace with hash 947970210, now seen corresponding path program 1 times [2021-08-25 21:44:38,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:38,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578267257] [2021-08-25 21:44:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:38,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 113 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:38,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:38,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578267257] [2021-08-25 21:44:38,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578267257] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:38,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787073797] [2021-08-25 21:44:38,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:38,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:38,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:38,588 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) [2021-08-25 21:44:38,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 21:44:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:38,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-25 21:44:38,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 74 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:40,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787073797] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:40,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 21:44:40,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-08-25 21:44:40,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379958293] [2021-08-25 21:44:40,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-25 21:44:40,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-25 21:44:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-25 21:44:40,445 INFO L87 Difference]: Start difference. First operand 13378 states and 15948 transitions. Second operand has 8 states, 8 states have (on average 33.625) internal successors, (269), 7 states have internal predecessors, (269), 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) [2021-08-25 21:44:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:42,214 INFO L93 Difference]: Finished difference Result 27113 states and 32415 transitions. [2021-08-25 21:44:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-25 21:44:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 33.625) internal successors, (269), 7 states have internal predecessors, (269), 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 236 [2021-08-25 21:44:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:42,234 INFO L225 Difference]: With dead ends: 27113 [2021-08-25 21:44:42,235 INFO L226 Difference]: Without dead ends: 13725 [2021-08-25 21:44:42,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 59.9ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-25 21:44:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13725 states. [2021-08-25 21:44:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13725 to 13165. [2021-08-25 21:44:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13165 states, 13164 states have (on average 1.1869492555454269) internal successors, (15625), 13164 states have internal predecessors, (15625), 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) [2021-08-25 21:44:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13165 states to 13165 states and 15625 transitions. [2021-08-25 21:44:42,381 INFO L78 Accepts]: Start accepts. Automaton has 13165 states and 15625 transitions. Word has length 236 [2021-08-25 21:44:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:42,381 INFO L470 AbstractCegarLoop]: Abstraction has 13165 states and 15625 transitions. [2021-08-25 21:44:42,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 33.625) internal successors, (269), 7 states have internal predecessors, (269), 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) [2021-08-25 21:44:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 13165 states and 15625 transitions. [2021-08-25 21:44:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-08-25 21:44:42,384 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:42,384 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:42,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 21:44:42,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-25 21:44:42,597 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:42,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:42,597 INFO L82 PathProgramCache]: Analyzing trace with hash 2112091131, now seen corresponding path program 1 times [2021-08-25 21:44:42,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:42,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025098200] [2021-08-25 21:44:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:42,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-08-25 21:44:42,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:42,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025098200] [2021-08-25 21:44:42,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025098200] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:42,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:42,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:42,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460321500] [2021-08-25 21:44:42,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:42,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:42,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:42,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:42,670 INFO L87 Difference]: Start difference. First operand 13165 states and 15625 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-08-25 21:44:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:43,427 INFO L93 Difference]: Finished difference Result 26335 states and 31256 transitions. [2021-08-25 21:44:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:43,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 241 [2021-08-25 21:44:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:43,450 INFO L225 Difference]: With dead ends: 26335 [2021-08-25 21:44:43,450 INFO L226 Difference]: Without dead ends: 13172 [2021-08-25 21:44:43,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13172 states. [2021-08-25 21:44:43,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13172 to 13164. [2021-08-25 21:44:43,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.1561953961862796) internal successors, (15219), 13163 states have internal predecessors, (15219), 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) [2021-08-25 21:44:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 15219 transitions. [2021-08-25 21:44:43,592 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 15219 transitions. Word has length 241 [2021-08-25 21:44:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:43,592 INFO L470 AbstractCegarLoop]: Abstraction has 13164 states and 15219 transitions. [2021-08-25 21:44:43,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-08-25 21:44:43,592 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 15219 transitions. [2021-08-25 21:44:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-08-25 21:44:43,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:43,596 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:43,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 21:44:43,596 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:43,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1148903582, now seen corresponding path program 1 times [2021-08-25 21:44:43,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:43,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108460006] [2021-08-25 21:44:43,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:43,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 95 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:43,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:43,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108460006] [2021-08-25 21:44:43,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108460006] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:43,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826356604] [2021-08-25 21:44:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:43,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:43,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:43,726 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:44:43,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 21:44:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:44,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 21:44:44,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:45,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826356604] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:45,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:45,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 21:44:45,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228781378] [2021-08-25 21:44:45,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:45,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:45,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:45,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:44:45,044 INFO L87 Difference]: Start difference. First operand 13164 states and 15219 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 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) [2021-08-25 21:44:45,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:45,954 INFO L93 Difference]: Finished difference Result 26514 states and 30636 transitions. [2021-08-25 21:44:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:45,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 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 255 [2021-08-25 21:44:45,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:45,973 INFO L225 Difference]: With dead ends: 26514 [2021-08-25 21:44:45,973 INFO L226 Difference]: Without dead ends: 13352 [2021-08-25 21:44:45,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 22.9ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:44:45,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13352 states. [2021-08-25 21:44:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13352 to 13164. [2021-08-25 21:44:46,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 13163 states have (on average 1.1548279267644155) internal successors, (15201), 13163 states have internal predecessors, (15201), 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) [2021-08-25 21:44:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 15201 transitions. [2021-08-25 21:44:46,127 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 15201 transitions. Word has length 255 [2021-08-25 21:44:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:46,127 INFO L470 AbstractCegarLoop]: Abstraction has 13164 states and 15201 transitions. [2021-08-25 21:44:46,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 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) [2021-08-25 21:44:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 15201 transitions. [2021-08-25 21:44:46,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-08-25 21:44:46,132 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:46,132 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:46,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 21:44:46,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 21:44:46,349 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:46,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:46,349 INFO L82 PathProgramCache]: Analyzing trace with hash -632041158, now seen corresponding path program 1 times [2021-08-25 21:44:46,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:46,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072057162] [2021-08-25 21:44:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:46,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-25 21:44:46,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:46,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072057162] [2021-08-25 21:44:46,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072057162] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:46,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:46,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:46,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200987070] [2021-08-25 21:44:46,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:46,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:46,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:46,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:46,420 INFO L87 Difference]: Start difference. First operand 13164 states and 15201 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-08-25 21:44:47,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:47,087 INFO L93 Difference]: Finished difference Result 24999 states and 28918 transitions. [2021-08-25 21:44:47,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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 271 [2021-08-25 21:44:47,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:47,109 INFO L225 Difference]: With dead ends: 24999 [2021-08-25 21:44:47,109 INFO L226 Difference]: Without dead ends: 11837 [2021-08-25 21:44:47,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11837 states. [2021-08-25 21:44:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11837 to 10546. [2021-08-25 21:44:47,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10546 states, 10545 states have (on average 1.1144618302513039) internal successors, (11752), 10545 states have internal predecessors, (11752), 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) [2021-08-25 21:44:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10546 states to 10546 states and 11752 transitions. [2021-08-25 21:44:47,264 INFO L78 Accepts]: Start accepts. Automaton has 10546 states and 11752 transitions. Word has length 271 [2021-08-25 21:44:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:47,264 INFO L470 AbstractCegarLoop]: Abstraction has 10546 states and 11752 transitions. [2021-08-25 21:44:47,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-08-25 21:44:47,264 INFO L276 IsEmpty]: Start isEmpty. Operand 10546 states and 11752 transitions. [2021-08-25 21:44:47,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-08-25 21:44:47,269 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:47,269 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:47,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-25 21:44:47,269 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:47,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:47,270 INFO L82 PathProgramCache]: Analyzing trace with hash 323334857, now seen corresponding path program 1 times [2021-08-25 21:44:47,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:47,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236599861] [2021-08-25 21:44:47,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:47,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 216 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:44:47,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:47,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236599861] [2021-08-25 21:44:47,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236599861] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:44:47,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024003234] [2021-08-25 21:44:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:47,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:47,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:44:47,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:44:47,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 21:44:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:47,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-25 21:44:47,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:44:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-08-25 21:44:48,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024003234] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:48,805 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:44:48,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-08-25 21:44:48,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67468185] [2021-08-25 21:44:48,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:48,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:48,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:48,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:48,807 INFO L87 Difference]: Start difference. First operand 10546 states and 11752 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-08-25 21:44:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:49,398 INFO L93 Difference]: Finished difference Result 21462 states and 23894 transitions. [2021-08-25 21:44:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:49,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 293 [2021-08-25 21:44:49,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:49,408 INFO L225 Difference]: With dead ends: 21462 [2021-08-25 21:44:49,408 INFO L226 Difference]: Without dead ends: 10734 [2021-08-25 21:44:49,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:44:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2021-08-25 21:44:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10362. [2021-08-25 21:44:49,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10362 states, 10361 states have (on average 1.1133095261075185) internal successors, (11535), 10361 states have internal predecessors, (11535), 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) [2021-08-25 21:44:49,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10362 states to 10362 states and 11535 transitions. [2021-08-25 21:44:49,498 INFO L78 Accepts]: Start accepts. Automaton has 10362 states and 11535 transitions. Word has length 293 [2021-08-25 21:44:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:49,499 INFO L470 AbstractCegarLoop]: Abstraction has 10362 states and 11535 transitions. [2021-08-25 21:44:49,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2021-08-25 21:44:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 10362 states and 11535 transitions. [2021-08-25 21:44:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-08-25 21:44:49,504 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:49,504 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:49,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 21:44:49,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:44:49,722 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1215708833, now seen corresponding path program 1 times [2021-08-25 21:44:49,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:49,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224034189] [2021-08-25 21:44:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:49,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-08-25 21:44:49,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:49,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224034189] [2021-08-25 21:44:49,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224034189] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:49,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:49,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 21:44:49,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037163248] [2021-08-25 21:44:49,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:49,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:49,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:49,802 INFO L87 Difference]: Start difference. First operand 10362 states and 11535 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2021-08-25 21:44:50,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:50,962 INFO L93 Difference]: Finished difference Result 25888 states and 28802 transitions. [2021-08-25 21:44:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:50,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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 309 [2021-08-25 21:44:50,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:50,975 INFO L225 Difference]: With dead ends: 25888 [2021-08-25 21:44:50,975 INFO L226 Difference]: Without dead ends: 15344 [2021-08-25 21:44:50,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:50,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2021-08-25 21:44:51,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 14232. [2021-08-25 21:44:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14232 states, 14231 states have (on average 1.1095495748717588) internal successors, (15790), 14231 states have internal predecessors, (15790), 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) [2021-08-25 21:44:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14232 states to 14232 states and 15790 transitions. [2021-08-25 21:44:51,108 INFO L78 Accepts]: Start accepts. Automaton has 14232 states and 15790 transitions. Word has length 309 [2021-08-25 21:44:51,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:51,109 INFO L470 AbstractCegarLoop]: Abstraction has 14232 states and 15790 transitions. [2021-08-25 21:44:51,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2021-08-25 21:44:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 14232 states and 15790 transitions. [2021-08-25 21:44:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2021-08-25 21:44:51,118 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:51,118 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:51,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 21:44:51,118 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:51,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1283500372, now seen corresponding path program 1 times [2021-08-25 21:44:51,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:51,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958741684] [2021-08-25 21:44:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:51,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2021-08-25 21:44:51,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:51,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958741684] [2021-08-25 21:44:51,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958741684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:51,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:51,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:51,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305736950] [2021-08-25 21:44:51,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:51,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:51,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:51,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:51,191 INFO L87 Difference]: Start difference. First operand 14232 states and 15790 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-25 21:44:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:51,848 INFO L93 Difference]: Finished difference Result 30118 states and 33398 transitions. [2021-08-25 21:44:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:51,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 316 [2021-08-25 21:44:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:51,864 INFO L225 Difference]: With dead ends: 30118 [2021-08-25 21:44:51,864 INFO L226 Difference]: Without dead ends: 15888 [2021-08-25 21:44:51,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:51,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2021-08-25 21:44:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 13118. [2021-08-25 21:44:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13118 states, 13117 states have (on average 1.1095524891362354) internal successors, (14554), 13117 states have internal predecessors, (14554), 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) [2021-08-25 21:44:52,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13118 states to 13118 states and 14554 transitions. [2021-08-25 21:44:52,056 INFO L78 Accepts]: Start accepts. Automaton has 13118 states and 14554 transitions. Word has length 316 [2021-08-25 21:44:52,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:52,056 INFO L470 AbstractCegarLoop]: Abstraction has 13118 states and 14554 transitions. [2021-08-25 21:44:52,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-25 21:44:52,057 INFO L276 IsEmpty]: Start isEmpty. Operand 13118 states and 14554 transitions. [2021-08-25 21:44:52,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-08-25 21:44:52,062 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:52,062 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:52,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-25 21:44:52,062 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:52,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:52,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1914030864, now seen corresponding path program 1 times [2021-08-25 21:44:52,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:52,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742396820] [2021-08-25 21:44:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:52,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-08-25 21:44:52,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:52,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742396820] [2021-08-25 21:44:52,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742396820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:52,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:52,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:52,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967011880] [2021-08-25 21:44:52,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:52,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:52,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:52,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:52,134 INFO L87 Difference]: Start difference. First operand 13118 states and 14554 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-25 21:44:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:52,698 INFO L93 Difference]: Finished difference Result 28993 states and 32131 transitions. [2021-08-25 21:44:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:52,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 318 [2021-08-25 21:44:52,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:52,712 INFO L225 Difference]: With dead ends: 28993 [2021-08-25 21:44:52,712 INFO L226 Difference]: Without dead ends: 15877 [2021-08-25 21:44:52,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15877 states. [2021-08-25 21:44:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15877 to 9803. [2021-08-25 21:44:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9803 states, 9802 states have (on average 1.1138543154458274) internal successors, (10918), 9802 states have internal predecessors, (10918), 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) [2021-08-25 21:44:52,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9803 states to 9803 states and 10918 transitions. [2021-08-25 21:44:52,815 INFO L78 Accepts]: Start accepts. Automaton has 9803 states and 10918 transitions. Word has length 318 [2021-08-25 21:44:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:52,815 INFO L470 AbstractCegarLoop]: Abstraction has 9803 states and 10918 transitions. [2021-08-25 21:44:52,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2021-08-25 21:44:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 9803 states and 10918 transitions. [2021-08-25 21:44:52,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-08-25 21:44:52,824 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:52,825 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:52,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 21:44:52,825 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:52,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:52,826 INFO L82 PathProgramCache]: Analyzing trace with hash -404909594, now seen corresponding path program 1 times [2021-08-25 21:44:52,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:52,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58900519] [2021-08-25 21:44:52,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:52,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:52,980 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-08-25 21:44:52,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:52,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58900519] [2021-08-25 21:44:52,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58900519] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:52,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:52,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:52,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149174985] [2021-08-25 21:44:52,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:52,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:52,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:52,984 INFO L87 Difference]: Start difference. First operand 9803 states and 10918 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2021-08-25 21:44:53,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:53,679 INFO L93 Difference]: Finished difference Result 19801 states and 22042 transitions. [2021-08-25 21:44:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 438 [2021-08-25 21:44:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:53,690 INFO L225 Difference]: With dead ends: 19801 [2021-08-25 21:44:53,690 INFO L226 Difference]: Without dead ends: 10000 [2021-08-25 21:44:53,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:53,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2021-08-25 21:44:53,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 9435. [2021-08-25 21:44:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9435 states, 9434 states have (on average 1.105681577273691) internal successors, (10431), 9434 states have internal predecessors, (10431), 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) [2021-08-25 21:44:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9435 states to 9435 states and 10431 transitions. [2021-08-25 21:44:53,795 INFO L78 Accepts]: Start accepts. Automaton has 9435 states and 10431 transitions. Word has length 438 [2021-08-25 21:44:53,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:53,796 INFO L470 AbstractCegarLoop]: Abstraction has 9435 states and 10431 transitions. [2021-08-25 21:44:53,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2021-08-25 21:44:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 9435 states and 10431 transitions. [2021-08-25 21:44:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-08-25 21:44:53,806 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:53,806 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-25 21:44:53,806 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:53,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash 77941500, now seen corresponding path program 1 times [2021-08-25 21:44:53,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:53,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423867940] [2021-08-25 21:44:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:53,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:53,929 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-08-25 21:44:53,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:53,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423867940] [2021-08-25 21:44:53,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423867940] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:53,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:53,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-25 21:44:53,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933694643] [2021-08-25 21:44:53,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 21:44:53,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:53,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 21:44:53,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:44:53,932 INFO L87 Difference]: Start difference. First operand 9435 states and 10431 transitions. Second operand has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 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) [2021-08-25 21:44:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:55,406 INFO L93 Difference]: Finished difference Result 24777 states and 27331 transitions. [2021-08-25 21:44:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 21:44:55,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 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 487 [2021-08-25 21:44:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:55,419 INFO L225 Difference]: With dead ends: 24777 [2021-08-25 21:44:55,419 INFO L226 Difference]: Without dead ends: 15160 [2021-08-25 21:44:55,425 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:44:55,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15160 states. [2021-08-25 21:44:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15160 to 11274. [2021-08-25 21:44:55,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11274 states, 11273 states have (on average 1.0994411425530028) internal successors, (12394), 11273 states have internal predecessors, (12394), 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) [2021-08-25 21:44:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11274 states to 11274 states and 12394 transitions. [2021-08-25 21:44:55,528 INFO L78 Accepts]: Start accepts. Automaton has 11274 states and 12394 transitions. Word has length 487 [2021-08-25 21:44:55,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:55,528 INFO L470 AbstractCegarLoop]: Abstraction has 11274 states and 12394 transitions. [2021-08-25 21:44:55,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 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) [2021-08-25 21:44:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11274 states and 12394 transitions. [2021-08-25 21:44:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-08-25 21:44:55,538 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:55,538 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:55,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 21:44:55,538 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:55,539 INFO L82 PathProgramCache]: Analyzing trace with hash 380464736, now seen corresponding path program 1 times [2021-08-25 21:44:55,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:55,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864125838] [2021-08-25 21:44:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:55,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-08-25 21:44:55,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:55,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864125838] [2021-08-25 21:44:55,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864125838] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:55,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:55,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-25 21:44:55,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763731286] [2021-08-25 21:44:55,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 21:44:55,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:55,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 21:44:55,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:44:55,663 INFO L87 Difference]: Start difference. First operand 11274 states and 12394 transitions. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2021-08-25 21:44:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:57,152 INFO L93 Difference]: Finished difference Result 24578 states and 27021 transitions. [2021-08-25 21:44:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 21:44:57,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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 491 [2021-08-25 21:44:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:57,163 INFO L225 Difference]: With dead ends: 24578 [2021-08-25 21:44:57,164 INFO L226 Difference]: Without dead ends: 13490 [2021-08-25 21:44:57,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:44:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13490 states. [2021-08-25 21:44:57,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13490 to 7033. [2021-08-25 21:44:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7033 states, 7032 states have (on average 1.1042377701934016) internal successors, (7765), 7032 states have internal predecessors, (7765), 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) [2021-08-25 21:44:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7033 states to 7033 states and 7765 transitions. [2021-08-25 21:44:57,273 INFO L78 Accepts]: Start accepts. Automaton has 7033 states and 7765 transitions. Word has length 491 [2021-08-25 21:44:57,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:57,273 INFO L470 AbstractCegarLoop]: Abstraction has 7033 states and 7765 transitions. [2021-08-25 21:44:57,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 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) [2021-08-25 21:44:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 7033 states and 7765 transitions. [2021-08-25 21:44:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2021-08-25 21:44:57,280 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:57,280 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:57,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 21:44:57,280 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash -554303261, now seen corresponding path program 1 times [2021-08-25 21:44:57,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:57,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920978199] [2021-08-25 21:44:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:57,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-08-25 21:44:57,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:57,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920978199] [2021-08-25 21:44:57,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920978199] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:57,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:57,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:57,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231842771] [2021-08-25 21:44:57,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:44:57,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:57,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:44:57,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:57,383 INFO L87 Difference]: Start difference. First operand 7033 states and 7765 transitions. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 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) [2021-08-25 21:44:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:58,339 INFO L93 Difference]: Finished difference Result 20332 states and 22420 transitions. [2021-08-25 21:44:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 21:44:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 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 511 [2021-08-25 21:44:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:58,353 INFO L225 Difference]: With dead ends: 20332 [2021-08-25 21:44:58,353 INFO L226 Difference]: Without dead ends: 12749 [2021-08-25 21:44:58,359 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:44:58,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12749 states. [2021-08-25 21:44:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12749 to 12193. [2021-08-25 21:44:58,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12193 states, 12192 states have (on average 1.0994094488188977) internal successors, (13404), 12192 states have internal predecessors, (13404), 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) [2021-08-25 21:44:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12193 states to 12193 states and 13404 transitions. [2021-08-25 21:44:58,471 INFO L78 Accepts]: Start accepts. Automaton has 12193 states and 13404 transitions. Word has length 511 [2021-08-25 21:44:58,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:58,471 INFO L470 AbstractCegarLoop]: Abstraction has 12193 states and 13404 transitions. [2021-08-25 21:44:58,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 3 states have internal predecessors, (403), 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) [2021-08-25 21:44:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 12193 states and 13404 transitions. [2021-08-25 21:44:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-08-25 21:44:58,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:58,484 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:58,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 21:44:58,484 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash 930769197, now seen corresponding path program 1 times [2021-08-25 21:44:58,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:58,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638606117] [2021-08-25 21:44:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:58,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-08-25 21:44:58,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:58,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638606117] [2021-08-25 21:44:58,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638606117] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:58,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:58,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:58,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188558233] [2021-08-25 21:44:58,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:58,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:58,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:58,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:58,593 INFO L87 Difference]: Start difference. First operand 12193 states and 13404 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-08-25 21:44:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:44:59,236 INFO L93 Difference]: Finished difference Result 25855 states and 28414 transitions. [2021-08-25 21:44:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:44:59,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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 589 [2021-08-25 21:44:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:44:59,246 INFO L225 Difference]: With dead ends: 25855 [2021-08-25 21:44:59,246 INFO L226 Difference]: Without dead ends: 12559 [2021-08-25 21:44:59,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:59,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12559 states. [2021-08-25 21:44:59,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12559 to 12559. [2021-08-25 21:44:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12559 states, 12558 states have (on average 1.08464723682115) internal successors, (13621), 12558 states have internal predecessors, (13621), 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) [2021-08-25 21:44:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12559 states to 12559 states and 13621 transitions. [2021-08-25 21:44:59,365 INFO L78 Accepts]: Start accepts. Automaton has 12559 states and 13621 transitions. Word has length 589 [2021-08-25 21:44:59,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:44:59,365 INFO L470 AbstractCegarLoop]: Abstraction has 12559 states and 13621 transitions. [2021-08-25 21:44:59,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2021-08-25 21:44:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 12559 states and 13621 transitions. [2021-08-25 21:44:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2021-08-25 21:44:59,374 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:44:59,375 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:44:59,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-25 21:44:59,375 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:44:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:44:59,375 INFO L82 PathProgramCache]: Analyzing trace with hash 691777402, now seen corresponding path program 1 times [2021-08-25 21:44:59,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:44:59,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742148576] [2021-08-25 21:44:59,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:44:59,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:44:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:44:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 838 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2021-08-25 21:44:59,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:44:59,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742148576] [2021-08-25 21:44:59,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742148576] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:44:59,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:44:59,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:44:59,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264940728] [2021-08-25 21:44:59,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:44:59,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:44:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:44:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:44:59,507 INFO L87 Difference]: Start difference. First operand 12559 states and 13621 transitions. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2021-08-25 21:45:00,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:45:00,093 INFO L93 Difference]: Finished difference Result 24745 states and 26786 transitions. [2021-08-25 21:45:00,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:45:00,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 658 [2021-08-25 21:45:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:45:00,094 INFO L225 Difference]: With dead ends: 24745 [2021-08-25 21:45:00,094 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:45:00,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:45:00,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:45:00,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:45:00,100 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) [2021-08-25 21:45:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:45:00,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 658 [2021-08-25 21:45:00,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:45:00,101 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:45:00,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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) [2021-08-25 21:45:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:45:00,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:45:00,103 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:45:00,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-25 21:45:00,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:45:00,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:45:00,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:45:01,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:45:05,548 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:45:05,548 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,548 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,549 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-25 21:45:05,550 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-25 21:45:05,550 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-25 21:45:05,550 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,551 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,551 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,551 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:45:05,552 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse19 (+ ~a23~0 43))) (let ((.cse6 (= ~a25~0 11)) (.cse9 (<= .cse19 0)) (.cse12 (= ~a25~0 12)) (.cse15 (<= (+ ~a29~0 21) 0)) (.cse7 (< 0 .cse19)) (.cse11 (= ~a4~0 0)) (.cse1 (= ~a25~0 9)) (.cse8 (<= ~a23~0 138)) (.cse17 (<= ~a29~0 220)) (.cse16 (<= 10 ~a25~0)) (.cse14 (<= 307 ~a23~0)) (.cse18 (= ~a25~0 13)) (.cse13 (<= ~a29~0 384312)) (.cse5 (<= ~a25~0 10)) (.cse0 (<= ~a29~0 599999)) (.cse2 (= ~a3~0 1)) (.cse3 (= ~a4~0 1)) (.cse10 (<= 214883 ~a29~0)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 (<= 312 ~a23~0) .cse4 (<= ~a29~0 130)) (and .cse1 .cse2 (<= (+ ~a23~0 599772) 0) .cse3 .cse4) (and .cse6 .cse0 .cse2 .cse3 .cse4) (and .cse7 .cse1 .cse2 .cse8 .cse3 .cse4) (and .cse9 .cse2 .cse3 .cse10 .cse4 (= ~a25~0 10)) (and .cse11 .cse6 .cse0 .cse2 (<= ~a23~0 312) .cse4) (and .cse12 .cse13 .cse14 .cse2 .cse3 .cse4) (and .cse15 .cse12 .cse2 .cse3 .cse4) (and .cse16 .cse11 .cse7 .cse5 .cse2 .cse8 .cse17 .cse4) (and .cse15 .cse16 .cse11 .cse5 .cse2 .cse4) (and .cse9 .cse13 .cse11 .cse1 .cse2 .cse4) (and .cse16 .cse5 (<= ~a29~0 245) .cse2 .cse3 .cse4) (and (<= ~a29~0 275) .cse12 .cse11 .cse2 .cse4 (or .cse7 (<= 141 ~a29~0) (not (= ULTIMATE.start_calculate_output_~input 1)))) (and .cse18 .cse15 .cse11 .cse7 .cse2 .cse8 .cse4) (and .cse11 .cse1 .cse2 .cse8 .cse17 .cse4) (and .cse16 .cse14 (<= ~a29~0 571720) .cse5 .cse2 .cse3 .cse4) (and .cse18 .cse13 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse3 .cse10 .cse4)))) [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,553 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-25 21:45:05,554 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse19 (+ ~a23~0 43))) (let ((.cse6 (= ~a25~0 11)) (.cse9 (<= .cse19 0)) (.cse12 (= ~a25~0 12)) (.cse15 (<= (+ ~a29~0 21) 0)) (.cse7 (< 0 .cse19)) (.cse11 (= ~a4~0 0)) (.cse1 (= ~a25~0 9)) (.cse8 (<= ~a23~0 138)) (.cse17 (<= ~a29~0 220)) (.cse16 (<= 10 ~a25~0)) (.cse14 (<= 307 ~a23~0)) (.cse18 (= ~a25~0 13)) (.cse13 (<= ~a29~0 384312)) (.cse5 (<= ~a25~0 10)) (.cse0 (<= ~a29~0 599999)) (.cse2 (= ~a3~0 1)) (.cse3 (= ~a4~0 1)) (.cse10 (<= 214883 ~a29~0)) (.cse4 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse3 (<= 312 ~a23~0) .cse4 (<= ~a29~0 130)) (and .cse1 .cse2 (<= (+ ~a23~0 599772) 0) .cse3 .cse4) (and .cse6 .cse0 .cse2 .cse3 .cse4) (and .cse7 .cse1 .cse2 .cse8 .cse3 .cse4) (and .cse9 .cse2 .cse3 .cse10 .cse4 (= ~a25~0 10)) (and .cse11 .cse6 .cse0 .cse2 (<= ~a23~0 312) .cse4) (and .cse12 .cse13 .cse14 .cse2 .cse3 .cse4) (and .cse15 .cse12 .cse2 .cse3 .cse4) (and .cse16 .cse11 .cse7 .cse5 .cse2 .cse8 .cse17 .cse4) (and .cse15 .cse16 .cse11 .cse5 .cse2 .cse4) (and .cse9 .cse13 .cse11 .cse1 .cse2 .cse4) (and .cse16 .cse5 (<= ~a29~0 245) .cse2 .cse3 .cse4) (and (<= ~a29~0 275) .cse12 .cse11 .cse2 .cse4 (or .cse7 (<= 141 ~a29~0) (not (= ULTIMATE.start_calculate_output_~input 1)))) (and .cse18 .cse15 .cse11 .cse7 .cse2 .cse8 .cse4) (and .cse11 .cse1 .cse2 .cse8 .cse17 .cse4) (and .cse16 .cse14 (<= ~a29~0 571720) .cse5 .cse2 .cse3 .cse4) (and .cse18 .cse13 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse2 .cse3 .cse10 .cse4)))) [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-25 21:45:05,555 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,556 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,557 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-25 21:45:05,558 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,559 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-25 21:45:05,560 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,561 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-25 21:45:05,562 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,563 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,564 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-25 21:45:05,564 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-25 21:45:05,564 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,565 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:45:05,566 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,567 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-25 21:45:05,568 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-25 21:45:05,572 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:45:05,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:45:05 BoogieIcfgContainer [2021-08-25 21:45:05,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:45:05,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:45:05,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:45:05,608 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:45:05,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:44:27" (3/4) ... [2021-08-25 21:45:05,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:45:05,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:45:05,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:45:05,647 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:45:05,648 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:45:05,749 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:45:05,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:45:05,751 INFO L168 Benchmark]: Toolchain (without parser) took 39855.76 ms. Allocated memory was 60.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 37.7 MB in the beginning and 915.1 MB in the end (delta: -877.3 MB). Peak memory consumption was 357.1 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,751 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:45:05,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.99 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 37.6 MB in the beginning and 45.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,752 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.72 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 45.0 MB in the end (delta: 941.3 kB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,752 INFO L168 Benchmark]: Boogie Preprocessor took 108.33 ms. Allocated memory is still 79.7 MB. Free memory was 45.0 MB in the beginning and 35.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,752 INFO L168 Benchmark]: RCFGBuilder took 1362.26 ms. Allocated memory was 79.7 MB in the beginning and 136.3 MB in the end (delta: 56.6 MB). Free memory was 35.4 MB in the beginning and 78.6 MB in the end (delta: -43.2 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,752 INFO L168 Benchmark]: TraceAbstraction took 37634.83 ms. Allocated memory was 136.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 78.6 MB in the beginning and 940.2 MB in the end (delta: -861.6 MB). Peak memory consumption was 884.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,752 INFO L168 Benchmark]: Witness Printer took 141.83 ms. Allocated memory is still 1.3 GB. Free memory was 940.2 MB in the beginning and 915.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:45:05,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 84.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.99 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 37.6 MB in the beginning and 45.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.72 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 45.0 MB in the end (delta: 941.3 kB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.33 ms. Allocated memory is still 79.7 MB. Free memory was 45.0 MB in the beginning and 35.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1362.26 ms. Allocated memory was 79.7 MB in the beginning and 136.3 MB in the end (delta: 56.6 MB). Free memory was 35.4 MB in the beginning and 78.6 MB in the end (delta: -43.2 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37634.83 ms. Allocated memory was 136.3 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 78.6 MB in the beginning and 940.2 MB in the end (delta: -861.6 MB). Peak memory consumption was 884.2 MB. Max. memory is 16.1 GB. * Witness Printer took 141.83 ms. Allocated memory is still 1.3 GB. Free memory was 940.2 MB in the beginning and 915.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37550.9ms, OverallIterations: 24, TraceHistogramMax: 6, EmptinessCheckTime: 115.6ms, AutomataDifference: 21913.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 5444.8ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4153 SDtfs, 5260 SDslu, 668 SDs, 0 SdLazy, 19498 SolverSat, 2911 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15388.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 863 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 152.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14232occurred in iteration=16, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2183.0ms AutomataMinimizationTime, 24 MinimizatonAttempts, 26704 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 173 NumberOfFragments, 775 HoareAnnotationTreeSize, 3 FomulaSimplifications, 83426 FormulaSimplificationTreeSizeReduction, 1379.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 50828 FormulaSimplificationTreeSizeReductionInter, 4055.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 289.2ms SsaConstructionTime, 698.9ms SatisfiabilityAnalysisTime, 5305.7ms InterpolantComputationTime, 7750 NumberOfCodeBlocks, 7750 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7723 ConstructedInterpolants, 0 QuantifiedInterpolants, 21426 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1186 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 27 InterpolantComputations, 23 PerfectInterpolantSequences, 7650/7815 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a29 <= 599999 && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && a29 <= 130)) || ((((a25 == 9 && a3 == 1) && a23 + 599772 <= 0) && a4 == 1) && a8 == 15)) || ((((a25 == 11 && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((0 < a23 + 43 && a25 == 9) && a3 == 1) && a23 <= 138) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && a25 == 11) && a29 <= 599999) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 12 && a29 <= 384312) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a29 + 21 <= 0 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((10 <= a25 && a4 == 0) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || (((((a29 + 21 <= 0 && 10 <= a25) && a4 == 0) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a29 <= 384312) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((10 <= a25 && a25 <= 10) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && ((0 < a23 + 43 || 141 <= a29) || !(input == 1)))) || ((((((a25 == 13 && a29 + 21 <= 0) && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 138) && a8 == 15)) || (((((a4 == 0 && a25 == 9) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || ((((((10 <= a25 && 307 <= a23) && a29 <= 571720) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 13 && a29 <= 384312) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a29 <= 599999) && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a29 <= 599999 && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && a29 <= 130)) || ((((a25 == 9 && a3 == 1) && a23 + 599772 <= 0) && a4 == 1) && a8 == 15)) || ((((a25 == 11 && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((0 < a23 + 43 && a25 == 9) && a3 == 1) && a23 <= 138) && a4 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && a25 == 11) && a29 <= 599999) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 12 && a29 <= 384312) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a29 + 21 <= 0 && a25 == 12) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((10 <= a25 && a4 == 0) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || (((((a29 + 21 <= 0 && 10 <= a25) && a4 == 0) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a23 + 43 <= 0 && a29 <= 384312) && a4 == 0) && a25 == 9) && a3 == 1) && a8 == 15)) || (((((10 <= a25 && a25 <= 10) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && ((0 < a23 + 43 || 141 <= a29) || !(input == 1)))) || ((((((a25 == 13 && a29 + 21 <= 0) && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 138) && a8 == 15)) || (((((a4 == 0 && a25 == 9) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || ((((((10 <= a25 && 307 <= a23) && a29 <= 571720) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 == 13 && a29 <= 384312) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a29 <= 599999) && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:45:05,789 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...