./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label24.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 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 04:34:11,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 04:34:11,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 04:34:11,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 04:34:11,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 04:34:11,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 04:34:11,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 04:34:11,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 04:34:11,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 04:34:11,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 04:34:11,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 04:34:11,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 04:34:11,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 04:34:11,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 04:34:11,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 04:34:11,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 04:34:11,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 04:34:11,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 04:34:11,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 04:34:11,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 04:34:11,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 04:34:11,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 04:34:11,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 04:34:11,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 04:34:11,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 04:34:11,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 04:34:11,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 04:34:11,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 04:34:11,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 04:34:11,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 04:34:11,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 04:34:11,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 04:34:11,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 04:34:11,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 04:34:11,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 04:34:11,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 04:34:11,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 04:34:11,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 04:34:11,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 04:34:11,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 04:34:11,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 04:34:11,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 04:34:11,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 04:34:11,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 04:34:11,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 04:34:11,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 04:34:11,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 04:34:11,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 04:34:11,984 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 04:34:11,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 04:34:11,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 04:34:11,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 04:34:11,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 04:34:11,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 04:34:11,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 04:34:11,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 04:34:11,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 04:34:11,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 04:34:11,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 04:34:11,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:34:11,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 04:34:11,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 04:34:11,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 04:34:11,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 04:34:11,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 04:34:11,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 04:34:11,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 04:34:11,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e6cb12e8c28b48932c83bb2f75d9445aafe92d9 [2021-08-29 04:34:12,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 04:34:12,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 04:34:12,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 04:34:12,342 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 04:34:12,346 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 04:34:12,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-08-29 04:34:12,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df67545c1/6694fd5089404a36a29dff8ddd4a4b61/FLAG7d3db7f39 [2021-08-29 04:34:13,024 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 04:34:13,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label24.c [2021-08-29 04:34:13,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df67545c1/6694fd5089404a36a29dff8ddd4a4b61/FLAG7d3db7f39 [2021-08-29 04:34:13,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df67545c1/6694fd5089404a36a29dff8ddd4a4b61 [2021-08-29 04:34:13,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 04:34:13,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 04:34:13,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 04:34:13,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 04:34:13,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 04:34:13,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:34:13" (1/1) ... [2021-08-29 04:34:13,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e66158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:13, skipping insertion in model container [2021-08-29 04:34:13,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:34:13" (1/1) ... [2021-08-29 04:34:13,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 04:34:13,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 04:34:13,764 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_label24.c[7451,7464] [2021-08-29 04:34:14,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:34:14,051 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 04:34:14,107 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_label24.c[7451,7464] [2021-08-29 04:34:14,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:34:14,248 INFO L208 MainTranslator]: Completed translation [2021-08-29 04:34:14,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14 WrapperNode [2021-08-29 04:34:14,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 04:34:14,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 04:34:14,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 04:34:14,252 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 04:34:14,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 04:34:14,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 04:34:14,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 04:34:14,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 04:34:14,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 04:34:14,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 04:34:14,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 04:34:14,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 04:34:14,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (1/1) ... [2021-08-29 04:34:14,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:34:14,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:34:14,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 04:34:14,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 04:34:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 04:34:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 04:34:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 04:34:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 04:34:15,195 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 04:34:15,196 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 04:34:15,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:34:15 BoogieIcfgContainer [2021-08-29 04:34:15,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 04:34:15,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 04:34:15,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 04:34:15,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 04:34:15,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:34:13" (1/3) ... [2021-08-29 04:34:15,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fde1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:34:15, skipping insertion in model container [2021-08-29 04:34:15,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:34:14" (2/3) ... [2021-08-29 04:34:15,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fde1b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:34:15, skipping insertion in model container [2021-08-29 04:34:15,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:34:15" (3/3) ... [2021-08-29 04:34:15,207 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label24.c [2021-08-29 04:34:15,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 04:34:15,212 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 04:34:15,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 04:34:15,254 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 04:34:15,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 04:34:15,285 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) [2021-08-29 04:34:15,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-29 04:34:15,298 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:15,299 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:15,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:15,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:15,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2021-08-29 04:34:15,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:15,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137475343] [2021-08-29 04:34:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:15,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:15,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:15,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137475343] [2021-08-29 04:34:15,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137475343] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:15,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:15,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:15,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317277365] [2021-08-29 04:34:15,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:15,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:15,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:15,709 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 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:17,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:17,064 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-08-29 04:34:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:17,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-08-29 04:34:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:17,078 INFO L225 Difference]: With dead ends: 776 [2021-08-29 04:34:17,078 INFO L226 Difference]: Without dead ends: 413 [2021-08-29 04:34:17,083 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:17,087 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 176 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 953.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.44ms SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1260.47ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:17,089 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 0 Invalid, 959 Unknown, 0 Unchecked, 9.44ms Time], IncrementalHoareTripleChecker [131 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1260.47ms Time] [2021-08-29 04:34:17,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-08-29 04:34:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-08-29 04:34:17,147 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) [2021-08-29 04:34:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-08-29 04:34:17,151 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 51 [2021-08-29 04:34:17,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:17,151 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-08-29 04:34:17,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-08-29 04:34:17,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-29 04:34:17,154 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:17,155 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:17,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 04:34:17,155 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:17,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1424628072, now seen corresponding path program 1 times [2021-08-29 04:34:17,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:17,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458729868] [2021-08-29 04:34:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:17,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:17,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:17,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458729868] [2021-08-29 04:34:17,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458729868] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:17,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:17,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:17,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104457078] [2021-08-29 04:34:17,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:17,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:17,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:17,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:17,281 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:18,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:18,183 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-08-29 04:34:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:18,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 119 [2021-08-29 04:34:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:18,191 INFO L225 Difference]: With dead ends: 1209 [2021-08-29 04:34:18,191 INFO L226 Difference]: Without dead ends: 800 [2021-08-29 04:34:18,193 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.83ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:18,194 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 696.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.22ms SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 862.74ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:18,195 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 0 Invalid, 791 Unknown, 0 Unchecked, 4.22ms Time], IncrementalHoareTripleChecker [148 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 862.74ms Time] [2021-08-29 04:34:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-08-29 04:34:18,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-08-29 04:34:18,226 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) [2021-08-29 04:34:18,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-08-29 04:34:18,230 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 119 [2021-08-29 04:34:18,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:18,230 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-08-29 04:34:18,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-08-29 04:34:18,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-08-29 04:34:18,235 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:18,235 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:18,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 04:34:18,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:18,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:18,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1033925576, now seen corresponding path program 1 times [2021-08-29 04:34:18,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:18,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327263791] [2021-08-29 04:34:18,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:18,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:18,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:18,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327263791] [2021-08-29 04:34:18,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327263791] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:18,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:18,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:18,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913541355] [2021-08-29 04:34:18,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:18,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:18,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:18,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:18,379 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:19,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:19,111 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-08-29 04:34:19,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:19,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 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 120 [2021-08-29 04:34:19,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:19,116 INFO L225 Difference]: With dead ends: 1942 [2021-08-29 04:34:19,116 INFO L226 Difference]: Without dead ends: 1157 [2021-08-29 04:34:19,118 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:19,119 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 554.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.61ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 691.37ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:19,119 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 0 Invalid, 758 Unknown, 0 Unchecked, 3.61ms Time], IncrementalHoareTripleChecker [37 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 691.37ms Time] [2021-08-29 04:34:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-08-29 04:34:19,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-08-29 04:34:19,146 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) [2021-08-29 04:34:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-08-29 04:34:19,150 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 120 [2021-08-29 04:34:19,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:19,151 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-08-29 04:34:19,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-08-29 04:34:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-08-29 04:34:19,154 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:19,154 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:19,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 04:34:19,155 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:19,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:19,156 INFO L82 PathProgramCache]: Analyzing trace with hash -289166940, now seen corresponding path program 1 times [2021-08-29 04:34:19,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:19,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387510964] [2021-08-29 04:34:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:19,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:19,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:19,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387510964] [2021-08-29 04:34:19,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387510964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:19,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:19,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:19,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137213446] [2021-08-29 04:34:19,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:19,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:19,244 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:20,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:20,053 INFO L93 Difference]: Finished difference Result 2691 states and 3515 transitions. [2021-08-29 04:34:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:20,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2021-08-29 04:34:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:20,061 INFO L225 Difference]: With dead ends: 2691 [2021-08-29 04:34:20,061 INFO L226 Difference]: Without dead ends: 1721 [2021-08-29 04:34:20,062 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:20,064 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 155 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 582.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.05ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 758.84ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:20,064 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 0 Invalid, 983 Unknown, 0 Unchecked, 3.05ms Time], IncrementalHoareTripleChecker [99 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 758.84ms Time] [2021-08-29 04:34:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-08-29 04:34:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2021-08-29 04:34:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.261296660117878) internal successors, (1926), 1527 states have internal predecessors, (1926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1926 transitions. [2021-08-29 04:34:20,112 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1926 transitions. Word has length 163 [2021-08-29 04:34:20,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:20,113 INFO L470 AbstractCegarLoop]: Abstraction has 1528 states and 1926 transitions. [2021-08-29 04:34:20,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:20,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1926 transitions. [2021-08-29 04:34:20,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-08-29 04:34:20,115 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:20,115 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:20,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 04:34:20,116 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:20,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:20,117 INFO L82 PathProgramCache]: Analyzing trace with hash -933543605, now seen corresponding path program 1 times [2021-08-29 04:34:20,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:20,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748544142] [2021-08-29 04:34:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:20,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:20,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:20,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748544142] [2021-08-29 04:34:20,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748544142] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:20,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:20,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:20,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409370178] [2021-08-29 04:34:20,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:20,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:20,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:20,189 INFO L87 Difference]: Start difference. First operand 1528 states and 1926 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:20,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:20,998 INFO L93 Difference]: Finished difference Result 4158 states and 5316 transitions. [2021-08-29 04:34:20,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:20,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 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 178 [2021-08-29 04:34:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:21,008 INFO L225 Difference]: With dead ends: 4158 [2021-08-29 04:34:21,009 INFO L226 Difference]: Without dead ends: 2632 [2021-08-29 04:34:21,012 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:21,013 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 619.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.94ms SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 754.50ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:21,025 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 0 Invalid, 786 Unknown, 0 Unchecked, 2.94ms Time], IncrementalHoareTripleChecker [183 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 754.50ms Time] [2021-08-29 04:34:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2021-08-29 04:34:21,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2448. [2021-08-29 04:34:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2447 states have (on average 1.2174090723334696) internal successors, (2979), 2447 states have internal predecessors, (2979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:21,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 2979 transitions. [2021-08-29 04:34:21,076 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 2979 transitions. Word has length 178 [2021-08-29 04:34:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:21,077 INFO L470 AbstractCegarLoop]: Abstraction has 2448 states and 2979 transitions. [2021-08-29 04:34:21,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 2979 transitions. [2021-08-29 04:34:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-08-29 04:34:21,081 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:21,081 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:21,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 04:34:21,081 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:21,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1329847317, now seen corresponding path program 1 times [2021-08-29 04:34:21,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:21,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693812843] [2021-08-29 04:34:21,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:21,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:21,218 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-08-29 04:34:21,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:21,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693812843] [2021-08-29 04:34:21,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693812843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:21,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:21,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:21,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090302873] [2021-08-29 04:34:21,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:21,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:21,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:21,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:21,221 INFO L87 Difference]: Start difference. First operand 2448 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:21,941 INFO L93 Difference]: Finished difference Result 5452 states and 6620 transitions. [2021-08-29 04:34:21,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:21,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 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 194 [2021-08-29 04:34:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:21,952 INFO L225 Difference]: With dead ends: 5452 [2021-08-29 04:34:21,952 INFO L226 Difference]: Without dead ends: 3006 [2021-08-29 04:34:21,956 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:21,957 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 75 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 557.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 678.33ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:21,957 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 0 Invalid, 715 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [26 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 678.33ms Time] [2021-08-29 04:34:21,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3006 states. [2021-08-29 04:34:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3006 to 3005. [2021-08-29 04:34:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 1.2113848202396804) internal successors, (3639), 3004 states have internal predecessors, (3639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 3639 transitions. [2021-08-29 04:34:22,012 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 3639 transitions. Word has length 194 [2021-08-29 04:34:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:22,013 INFO L470 AbstractCegarLoop]: Abstraction has 3005 states and 3639 transitions. [2021-08-29 04:34:22,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 3639 transitions. [2021-08-29 04:34:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-08-29 04:34:22,016 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:22,016 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:22,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 04:34:22,017 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:22,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1440418757, now seen corresponding path program 1 times [2021-08-29 04:34:22,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:22,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310590049] [2021-08-29 04:34:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:22,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:22,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:22,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310590049] [2021-08-29 04:34:22,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310590049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:22,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:22,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:34:22,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881539000] [2021-08-29 04:34:22,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:34:22,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:22,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:34:22,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:22,132 INFO L87 Difference]: Start difference. First operand 3005 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:23,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:23,522 INFO L93 Difference]: Finished difference Result 8783 states and 10795 transitions. [2021-08-29 04:34:23,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:34:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232 [2021-08-29 04:34:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:23,546 INFO L225 Difference]: With dead ends: 8783 [2021-08-29 04:34:23,546 INFO L226 Difference]: Without dead ends: 5780 [2021-08-29 04:34:23,550 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.72ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:23,551 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 319 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1074.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.53ms SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1302.50ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:23,552 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 0 Invalid, 1534 Unknown, 0 Unchecked, 5.53ms Time], IncrementalHoareTripleChecker [252 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1302.50ms Time] [2021-08-29 04:34:23,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2021-08-29 04:34:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5404. [2021-08-29 04:34:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5403 states have (on average 1.2121043864519712) internal successors, (6549), 5403 states have internal predecessors, (6549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:23,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 6549 transitions. [2021-08-29 04:34:23,662 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 6549 transitions. Word has length 232 [2021-08-29 04:34:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:23,662 INFO L470 AbstractCegarLoop]: Abstraction has 5404 states and 6549 transitions. [2021-08-29 04:34:23,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 6549 transitions. [2021-08-29 04:34:23,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-08-29 04:34:23,666 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:23,666 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:23,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 04:34:23,667 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1400544816, now seen corresponding path program 1 times [2021-08-29 04:34:23,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:23,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988841885] [2021-08-29 04:34:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:23,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-29 04:34:23,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:23,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988841885] [2021-08-29 04:34:23,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988841885] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:23,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:23,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:23,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249553313] [2021-08-29 04:34:23,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:23,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:23,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:23,802 INFO L87 Difference]: Start difference. First operand 5404 states and 6549 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:24,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:24,778 INFO L93 Difference]: Finished difference Result 11919 states and 14623 transitions. [2021-08-29 04:34:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:24,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 233 [2021-08-29 04:34:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:24,804 INFO L225 Difference]: With dead ends: 11919 [2021-08-29 04:34:24,804 INFO L226 Difference]: Without dead ends: 6885 [2021-08-29 04:34:24,810 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:24,813 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 746.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.44ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 901.10ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:24,814 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 0 Invalid, 1070 Unknown, 0 Unchecked, 3.44ms Time], IncrementalHoareTripleChecker [86 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 901.10ms Time] [2021-08-29 04:34:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6885 states. [2021-08-29 04:34:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6885 to 6692. [2021-08-29 04:34:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 1.1927962935286205) internal successors, (7981), 6691 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 7981 transitions. [2021-08-29 04:34:24,934 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 7981 transitions. Word has length 233 [2021-08-29 04:34:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:24,935 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 7981 transitions. [2021-08-29 04:34:24,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 7981 transitions. [2021-08-29 04:34:24,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-08-29 04:34:24,939 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:24,939 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:24,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 04:34:24,940 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:24,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:24,940 INFO L82 PathProgramCache]: Analyzing trace with hash 826529202, now seen corresponding path program 1 times [2021-08-29 04:34:24,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:24,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267045021] [2021-08-29 04:34:24,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:24,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:25,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:25,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267045021] [2021-08-29 04:34:25,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267045021] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:25,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:25,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:25,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169118637] [2021-08-29 04:34:25,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:34:25,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:25,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:34:25,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:25,080 INFO L87 Difference]: Start difference. First operand 6692 states and 7981 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:26,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:26,484 INFO L93 Difference]: Finished difference Result 14861 states and 17819 transitions. [2021-08-29 04:34:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:34:26,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 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 243 [2021-08-29 04:34:26,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:26,523 INFO L225 Difference]: With dead ends: 14861 [2021-08-29 04:34:26,524 INFO L226 Difference]: Without dead ends: 8539 [2021-08-29 04:34:26,530 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.80ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:26,532 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 254 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1069.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.90ms SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1297.28ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:26,533 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 0 Invalid, 1496 Unknown, 0 Unchecked, 5.90ms Time], IncrementalHoareTripleChecker [298 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1297.28ms Time] [2021-08-29 04:34:26,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8539 states. [2021-08-29 04:34:26,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8539 to 8534. [2021-08-29 04:34:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 1.1736786593226298) internal successors, (10015), 8533 states have internal predecessors, (10015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 10015 transitions. [2021-08-29 04:34:26,682 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 10015 transitions. Word has length 243 [2021-08-29 04:34:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:26,683 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 10015 transitions. [2021-08-29 04:34:26,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 10015 transitions. [2021-08-29 04:34:26,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-08-29 04:34:26,688 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:26,688 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:26,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 04:34:26,689 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:26,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:26,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1535621630, now seen corresponding path program 1 times [2021-08-29 04:34:26,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:26,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794522018] [2021-08-29 04:34:26,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:26,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:26,812 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-08-29 04:34:26,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:26,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794522018] [2021-08-29 04:34:26,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794522018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:26,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:26,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:26,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906028913] [2021-08-29 04:34:26,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:26,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:26,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:26,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:26,814 INFO L87 Difference]: Start difference. First operand 8534 states and 10015 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:27,667 INFO L93 Difference]: Finished difference Result 18740 states and 22056 transitions. [2021-08-29 04:34:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:27,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 253 [2021-08-29 04:34:27,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:27,685 INFO L225 Difference]: With dead ends: 18740 [2021-08-29 04:34:27,685 INFO L226 Difference]: Without dead ends: 10576 [2021-08-29 04:34:27,694 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:27,695 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 151 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 639.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.75ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 768.26ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:27,696 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 0 Invalid, 823 Unknown, 0 Unchecked, 2.75ms Time], IncrementalHoareTripleChecker [49 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 768.26ms Time] [2021-08-29 04:34:27,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10576 states. [2021-08-29 04:34:27,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10576 to 10190. [2021-08-29 04:34:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 10189 states have (on average 1.1690057905584454) internal successors, (11911), 10189 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 11911 transitions. [2021-08-29 04:34:27,841 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 11911 transitions. Word has length 253 [2021-08-29 04:34:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:27,841 INFO L470 AbstractCegarLoop]: Abstraction has 10190 states and 11911 transitions. [2021-08-29 04:34:27,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 11911 transitions. [2021-08-29 04:34:27,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-08-29 04:34:27,848 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:27,848 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:27,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 04:34:27,849 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:27,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:27,849 INFO L82 PathProgramCache]: Analyzing trace with hash 943642801, now seen corresponding path program 1 times [2021-08-29 04:34:27,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:27,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852365199] [2021-08-29 04:34:27,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:27,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-08-29 04:34:27,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:27,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852365199] [2021-08-29 04:34:27,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852365199] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:27,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:27,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:27,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626315711] [2021-08-29 04:34:27,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:27,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:27,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:27,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:27,987 INFO L87 Difference]: Start difference. First operand 10190 states and 11911 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:28,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:28,889 INFO L93 Difference]: Finished difference Result 20567 states and 24033 transitions. [2021-08-29 04:34:28,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:28,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 281 [2021-08-29 04:34:28,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:28,906 INFO L225 Difference]: With dead ends: 20567 [2021-08-29 04:34:28,906 INFO L226 Difference]: Without dead ends: 10563 [2021-08-29 04:34:28,915 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:28,916 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 150 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 638.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 811.16ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:28,916 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 0 Invalid, 1019 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [91 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 811.16ms Time] [2021-08-29 04:34:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10563 states. [2021-08-29 04:34:29,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10563 to 10557. [2021-08-29 04:34:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10557 states, 10556 states have (on average 1.139920424403183) internal successors, (12033), 10556 states have internal predecessors, (12033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10557 states to 10557 states and 12033 transitions. [2021-08-29 04:34:29,097 INFO L78 Accepts]: Start accepts. Automaton has 10557 states and 12033 transitions. Word has length 281 [2021-08-29 04:34:29,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:29,098 INFO L470 AbstractCegarLoop]: Abstraction has 10557 states and 12033 transitions. [2021-08-29 04:34:29,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:29,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10557 states and 12033 transitions. [2021-08-29 04:34:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-08-29 04:34:29,106 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:29,107 INFO L513 BasicCegarLoop]: trace histogram [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, 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] [2021-08-29 04:34:29,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 04:34:29,107 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:29,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:29,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2146355781, now seen corresponding path program 1 times [2021-08-29 04:34:29,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:29,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081956901] [2021-08-29 04:34:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:29,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-08-29 04:34:29,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:29,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081956901] [2021-08-29 04:34:29,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081956901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:29,234 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:29,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:29,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911214748] [2021-08-29 04:34:29,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:29,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:29,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:29,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:29,236 INFO L87 Difference]: Start difference. First operand 10557 states and 12033 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:30,040 INFO L93 Difference]: Finished difference Result 23886 states and 27410 transitions. [2021-08-29 04:34:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:30,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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 314 [2021-08-29 04:34:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:30,072 INFO L225 Difference]: With dead ends: 23886 [2021-08-29 04:34:30,072 INFO L226 Difference]: Without dead ends: 13699 [2021-08-29 04:34:30,085 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:30,086 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 142 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 560.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.82ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 698.17ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:30,086 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 0 Invalid, 786 Unknown, 0 Unchecked, 17.82ms Time], IncrementalHoareTripleChecker [64 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 698.17ms Time] [2021-08-29 04:34:30,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13699 states. [2021-08-29 04:34:30,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13699 to 13694. [2021-08-29 04:34:30,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13694 states, 13693 states have (on average 1.1337179580807712) internal successors, (15524), 13693 states have internal predecessors, (15524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13694 states to 13694 states and 15524 transitions. [2021-08-29 04:34:30,332 INFO L78 Accepts]: Start accepts. Automaton has 13694 states and 15524 transitions. Word has length 314 [2021-08-29 04:34:30,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:30,333 INFO L470 AbstractCegarLoop]: Abstraction has 13694 states and 15524 transitions. [2021-08-29 04:34:30,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 13694 states and 15524 transitions. [2021-08-29 04:34:30,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2021-08-29 04:34:30,345 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:30,345 INFO L513 BasicCegarLoop]: trace histogram [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, 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] [2021-08-29 04:34:30,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 04:34:30,345 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:30,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:30,346 INFO L82 PathProgramCache]: Analyzing trace with hash 263747274, now seen corresponding path program 1 times [2021-08-29 04:34:30,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:30,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979725983] [2021-08-29 04:34:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:30,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-08-29 04:34:30,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:30,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979725983] [2021-08-29 04:34:30,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979725983] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:30,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:30,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:30,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591615494] [2021-08-29 04:34:30,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:30,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:30,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:30,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:30,451 INFO L87 Difference]: Start difference. First operand 13694 states and 15524 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:31,280 INFO L93 Difference]: Finished difference Result 30517 states and 34553 transitions. [2021-08-29 04:34:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:31,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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 322 [2021-08-29 04:34:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:31,307 INFO L225 Difference]: With dead ends: 30517 [2021-08-29 04:34:31,307 INFO L226 Difference]: Without dead ends: 17193 [2021-08-29 04:34:31,322 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:31,323 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 156 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 547.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.76ms SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 725.49ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:31,323 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 0 Invalid, 759 Unknown, 0 Unchecked, 1.76ms Time], IncrementalHoareTripleChecker [139 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 725.49ms Time] [2021-08-29 04:34:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17193 states. [2021-08-29 04:34:31,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17193 to 17190. [2021-08-29 04:34:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17190 states, 17189 states have (on average 1.1226365698993543) internal successors, (19297), 17189 states have internal predecessors, (19297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17190 states to 17190 states and 19297 transitions. [2021-08-29 04:34:31,568 INFO L78 Accepts]: Start accepts. Automaton has 17190 states and 19297 transitions. Word has length 322 [2021-08-29 04:34:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:31,569 INFO L470 AbstractCegarLoop]: Abstraction has 17190 states and 19297 transitions. [2021-08-29 04:34:31,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 17190 states and 19297 transitions. [2021-08-29 04:34:31,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-08-29 04:34:31,580 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:31,580 INFO L513 BasicCegarLoop]: trace histogram [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, 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] [2021-08-29 04:34:31,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 04:34:31,581 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:31,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:31,581 INFO L82 PathProgramCache]: Analyzing trace with hash -379447870, now seen corresponding path program 1 times [2021-08-29 04:34:31,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:31,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083812526] [2021-08-29 04:34:31,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:31,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:31,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:31,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083812526] [2021-08-29 04:34:31,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083812526] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:34:31,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390812054] [2021-08-29 04:34:31,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:31,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:34:31,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:34:31,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:34:31,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 04:34:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:31,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 04:34:31,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:34:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-08-29 04:34:33,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:34:33,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390812054] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:33,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:34:33,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-29 04:34:33,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418743419] [2021-08-29 04:34:33,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:33,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:33,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:34:33,049 INFO L87 Difference]: Start difference. First operand 17190 states and 19297 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:34,017 INFO L93 Difference]: Finished difference Result 35504 states and 40039 transitions. [2021-08-29 04:34:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:34,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 324 [2021-08-29 04:34:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:34,047 INFO L225 Difference]: With dead ends: 35504 [2021-08-29 04:34:34,047 INFO L226 Difference]: Without dead ends: 18684 [2021-08-29 04:34:34,060 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 16.08ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:34:34,060 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 137 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 699.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 848.25ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:34,061 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 0 Invalid, 985 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [51 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 848.25ms Time] [2021-08-29 04:34:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2021-08-29 04:34:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18676. [2021-08-29 04:34:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18676 states, 18675 states have (on average 1.121178045515395) internal successors, (20938), 18675 states have internal predecessors, (20938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:34,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18676 states to 18676 states and 20938 transitions. [2021-08-29 04:34:34,337 INFO L78 Accepts]: Start accepts. Automaton has 18676 states and 20938 transitions. Word has length 324 [2021-08-29 04:34:34,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:34,337 INFO L470 AbstractCegarLoop]: Abstraction has 18676 states and 20938 transitions. [2021-08-29 04:34:34,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 18676 states and 20938 transitions. [2021-08-29 04:34:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-08-29 04:34:34,345 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:34,345 INFO L513 BasicCegarLoop]: trace histogram [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, 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] [2021-08-29 04:34:34,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 04:34:34,567 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,SelfDestructingSolverStorable13 [2021-08-29 04:34:34,567 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:34,567 INFO L82 PathProgramCache]: Analyzing trace with hash -56733327, now seen corresponding path program 1 times [2021-08-29 04:34:34,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:34,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282435078] [2021-08-29 04:34:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:34,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-08-29 04:34:34,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:34,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282435078] [2021-08-29 04:34:34,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282435078] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:34,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:34,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:34,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247028941] [2021-08-29 04:34:34,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:34,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:34,690 INFO L87 Difference]: Start difference. First operand 18676 states and 20938 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:35,527 INFO L93 Difference]: Finished difference Result 40109 states and 44936 transitions. [2021-08-29 04:34:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 326 [2021-08-29 04:34:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:35,558 INFO L225 Difference]: With dead ends: 40109 [2021-08-29 04:34:35,558 INFO L226 Difference]: Without dead ends: 21803 [2021-08-29 04:34:35,570 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.56ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:35,570 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 168 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 526.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 638.92ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:35,571 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 0 Invalid, 716 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [60 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 638.92ms Time] [2021-08-29 04:34:35,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2021-08-29 04:34:35,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 14439. [2021-08-29 04:34:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14439 states, 14438 states have (on average 1.13159717412384) internal successors, (16338), 14438 states have internal predecessors, (16338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14439 states to 14439 states and 16338 transitions. [2021-08-29 04:34:35,776 INFO L78 Accepts]: Start accepts. Automaton has 14439 states and 16338 transitions. Word has length 326 [2021-08-29 04:34:35,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:35,776 INFO L470 AbstractCegarLoop]: Abstraction has 14439 states and 16338 transitions. [2021-08-29 04:34:35,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:35,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14439 states and 16338 transitions. [2021-08-29 04:34:35,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-08-29 04:34:35,785 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:35,785 INFO L513 BasicCegarLoop]: trace histogram [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, 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] [2021-08-29 04:34:35,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 04:34:35,786 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:35,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:35,786 INFO L82 PathProgramCache]: Analyzing trace with hash 234214298, now seen corresponding path program 1 times [2021-08-29 04:34:35,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:35,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339373923] [2021-08-29 04:34:35,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:35,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-08-29 04:34:35,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:35,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339373923] [2021-08-29 04:34:35,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339373923] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:35,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:35,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:34:35,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915984425] [2021-08-29 04:34:35,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:35,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:35,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:35,994 INFO L87 Difference]: Start difference. First operand 14439 states and 16338 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:36,470 INFO L93 Difference]: Finished difference Result 28500 states and 32286 transitions. [2021-08-29 04:34:36,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:36,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 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 333 [2021-08-29 04:34:36,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:36,487 INFO L225 Difference]: With dead ends: 28500 [2021-08-29 04:34:36,487 INFO L226 Difference]: Without dead ends: 14431 [2021-08-29 04:34:36,497 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:36,498 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 312.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 382.59ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:36,498 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 0 Invalid, 351 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [4 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 382.59ms Time] [2021-08-29 04:34:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14431 states. [2021-08-29 04:34:36,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14431 to 14428. [2021-08-29 04:34:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14428 states, 14427 states have (on average 1.1309350523324322) internal successors, (16316), 14427 states have internal predecessors, (16316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14428 states to 14428 states and 16316 transitions. [2021-08-29 04:34:36,714 INFO L78 Accepts]: Start accepts. Automaton has 14428 states and 16316 transitions. Word has length 333 [2021-08-29 04:34:36,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:36,715 INFO L470 AbstractCegarLoop]: Abstraction has 14428 states and 16316 transitions. [2021-08-29 04:34:36,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 2 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 14428 states and 16316 transitions. [2021-08-29 04:34:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2021-08-29 04:34:36,724 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:36,725 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:36,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 04:34:36,725 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:36,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1309922959, now seen corresponding path program 1 times [2021-08-29 04:34:36,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:36,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603822899] [2021-08-29 04:34:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:36,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-29 04:34:36,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:36,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603822899] [2021-08-29 04:34:36,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603822899] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:36,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:36,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:36,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904172449] [2021-08-29 04:34:36,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:36,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:36,860 INFO L87 Difference]: Start difference. First operand 14428 states and 16316 transitions. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:37,711 INFO L93 Difference]: Finished difference Result 32350 states and 36463 transitions. [2021-08-29 04:34:37,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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 357 [2021-08-29 04:34:37,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:37,732 INFO L225 Difference]: With dead ends: 32350 [2021-08-29 04:34:37,733 INFO L226 Difference]: Without dead ends: 16448 [2021-08-29 04:34:37,744 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:37,745 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 150 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 621.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.46ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 752.87ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:37,745 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 0 Invalid, 954 Unknown, 0 Unchecked, 1.46ms Time], IncrementalHoareTripleChecker [91 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 752.87ms Time] [2021-08-29 04:34:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16448 states. [2021-08-29 04:34:37,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16448 to 14052. [2021-08-29 04:34:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14052 states, 14051 states have (on average 1.095224539178706) internal successors, (15389), 14051 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 15389 transitions. [2021-08-29 04:34:37,920 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 15389 transitions. Word has length 357 [2021-08-29 04:34:37,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:37,921 INFO L470 AbstractCegarLoop]: Abstraction has 14052 states and 15389 transitions. [2021-08-29 04:34:37,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:37,921 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 15389 transitions. [2021-08-29 04:34:37,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-08-29 04:34:37,929 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:37,929 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:37,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-29 04:34:37,929 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:37,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2132777761, now seen corresponding path program 1 times [2021-08-29 04:34:37,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:37,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412686337] [2021-08-29 04:34:37,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:37,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-08-29 04:34:38,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:38,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412686337] [2021-08-29 04:34:38,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412686337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:38,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:38,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:34:38,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707484964] [2021-08-29 04:34:38,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:34:38,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:34:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:38,083 INFO L87 Difference]: Start difference. First operand 14052 states and 15389 transitions. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:39,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:39,131 INFO L93 Difference]: Finished difference Result 28841 states and 31559 transitions. [2021-08-29 04:34:39,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:34:39,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 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 358 [2021-08-29 04:34:39,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:39,151 INFO L225 Difference]: With dead ends: 28841 [2021-08-29 04:34:39,151 INFO L226 Difference]: Without dead ends: 15159 [2021-08-29 04:34:39,162 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.93ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:39,163 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 307 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 775.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 947.93ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:39,163 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 0 Invalid, 1321 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [180 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 947.93ms Time] [2021-08-29 04:34:39,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15159 states. [2021-08-29 04:34:39,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15159 to 14236. [2021-08-29 04:34:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14236 states, 14235 states have (on average 1.0942746750965928) internal successors, (15577), 14235 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 15577 transitions. [2021-08-29 04:34:39,349 INFO L78 Accepts]: Start accepts. Automaton has 14236 states and 15577 transitions. Word has length 358 [2021-08-29 04:34:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:39,350 INFO L470 AbstractCegarLoop]: Abstraction has 14236 states and 15577 transitions. [2021-08-29 04:34:39,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 14236 states and 15577 transitions. [2021-08-29 04:34:39,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-08-29 04:34:39,359 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:39,359 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:39,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 04:34:39,360 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:39,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:39,360 INFO L82 PathProgramCache]: Analyzing trace with hash 827224776, now seen corresponding path program 1 times [2021-08-29 04:34:39,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:39,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939582805] [2021-08-29 04:34:39,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:39,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-08-29 04:34:39,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:39,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939582805] [2021-08-29 04:34:39,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939582805] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:39,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:39,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:39,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784909072] [2021-08-29 04:34:39,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:34:39,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:39,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:34:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:39,488 INFO L87 Difference]: Start difference. First operand 14236 states and 15577 transitions. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:40,472 INFO L93 Difference]: Finished difference Result 36219 states and 39627 transitions. [2021-08-29 04:34:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:34:40,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 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 372 [2021-08-29 04:34:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:40,494 INFO L225 Difference]: With dead ends: 36219 [2021-08-29 04:34:40,494 INFO L226 Difference]: Without dead ends: 21801 [2021-08-29 04:34:40,504 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.37ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:40,505 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 211 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 726.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 881.60ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:40,506 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 0 Invalid, 1305 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [108 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 881.60ms Time] [2021-08-29 04:34:40,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21801 states. [2021-08-29 04:34:40,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21801 to 20506. [2021-08-29 04:34:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20506 states, 20505 states have (on average 1.090904657400634) internal successors, (22369), 20505 states have internal predecessors, (22369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20506 states to 20506 states and 22369 transitions. [2021-08-29 04:34:40,683 INFO L78 Accepts]: Start accepts. Automaton has 20506 states and 22369 transitions. Word has length 372 [2021-08-29 04:34:40,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:40,684 INFO L470 AbstractCegarLoop]: Abstraction has 20506 states and 22369 transitions. [2021-08-29 04:34:40,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:40,684 INFO L276 IsEmpty]: Start isEmpty. Operand 20506 states and 22369 transitions. [2021-08-29 04:34:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-08-29 04:34:40,693 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:40,694 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:40,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 04:34:40,694 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:40,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:40,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1553293930, now seen corresponding path program 1 times [2021-08-29 04:34:40,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:40,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409266072] [2021-08-29 04:34:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:40,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 146 proven. 200 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-08-29 04:34:40,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:40,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409266072] [2021-08-29 04:34:40,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409266072] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:34:40,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246332076] [2021-08-29 04:34:40,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:40,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:34:40,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:34:40,833 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) [2021-08-29 04:34:40,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 04:34:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:40,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-29 04:34:40,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:34:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:43,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 04:34:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 244 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:34:47,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246332076] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 04:34:47,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 04:34:47,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2021-08-29 04:34:47,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813946280] [2021-08-29 04:34:47,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-29 04:34:47,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-29 04:34:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-29 04:34:47,404 INFO L87 Difference]: Start difference. First operand 20506 states and 22369 transitions. Second operand has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:54,032 INFO L93 Difference]: Finished difference Result 61536 states and 66765 transitions. [2021-08-29 04:34:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-29 04:34:54,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 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 389 [2021-08-29 04:34:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:54,078 INFO L225 Difference]: With dead ends: 61536 [2021-08-29 04:34:54,078 INFO L226 Difference]: Without dead ends: 40662 [2021-08-29 04:34:54,096 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 770 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 576.30ms TimeCoverageRelationStatistics Valid=464, Invalid=1176, Unknown=0, NotChecked=0, Total=1640 [2021-08-29 04:34:54,097 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5059 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 6821 mSolverCounterSat, 2135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4550.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.14ms SdHoareTripleChecker+Time, 2135 IncrementalHoareTripleChecker+Valid, 6821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5552.85ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:54,097 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5059 Valid, 0 Invalid, 8956 Unknown, 0 Unchecked, 28.14ms Time], IncrementalHoareTripleChecker [2135 Valid, 6821 Invalid, 0 Unknown, 0 Unchecked, 5552.85ms Time] [2021-08-29 04:34:54,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40662 states. [2021-08-29 04:34:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40662 to 35614. [2021-08-29 04:34:54,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35614 states, 35613 states have (on average 1.0764046836829249) internal successors, (38334), 35613 states have internal predecessors, (38334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35614 states to 35614 states and 38334 transitions. [2021-08-29 04:34:54,591 INFO L78 Accepts]: Start accepts. Automaton has 35614 states and 38334 transitions. Word has length 389 [2021-08-29 04:34:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:54,591 INFO L470 AbstractCegarLoop]: Abstraction has 35614 states and 38334 transitions. [2021-08-29 04:34:54,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 76.16666666666667) internal successors, (914), 11 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 35614 states and 38334 transitions. [2021-08-29 04:34:54,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-08-29 04:34:54,600 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:54,600 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:54,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-29 04:34:54,802 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,SelfDestructingSolverStorable19 [2021-08-29 04:34:54,803 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:54,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:54,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1546004851, now seen corresponding path program 1 times [2021-08-29 04:34:54,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:54,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665578091] [2021-08-29 04:34:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:54,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-08-29 04:34:54,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:54,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665578091] [2021-08-29 04:34:54,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665578091] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:54,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:54,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:54,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161881326] [2021-08-29 04:34:54,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:34:54,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:34:54,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:54,953 INFO L87 Difference]: Start difference. First operand 35614 states and 38334 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:56,127 INFO L93 Difference]: Finished difference Result 72893 states and 78533 transitions. [2021-08-29 04:34:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:34:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 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 394 [2021-08-29 04:34:56,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:56,169 INFO L225 Difference]: With dead ends: 72893 [2021-08-29 04:34:56,169 INFO L226 Difference]: Without dead ends: 37649 [2021-08-29 04:34:56,190 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.51ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:34:56,191 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 200 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 767.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 942.29ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:56,191 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 0 Invalid, 1325 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [219 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 942.29ms Time] [2021-08-29 04:34:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37649 states. [2021-08-29 04:34:56,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37649 to 33762. [2021-08-29 04:34:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33762 states, 33761 states have (on average 1.0759752377003051) internal successors, (36326), 33761 states have internal predecessors, (36326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:56,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33762 states to 33762 states and 36326 transitions. [2021-08-29 04:34:56,608 INFO L78 Accepts]: Start accepts. Automaton has 33762 states and 36326 transitions. Word has length 394 [2021-08-29 04:34:56,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:56,609 INFO L470 AbstractCegarLoop]: Abstraction has 33762 states and 36326 transitions. [2021-08-29 04:34:56,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:56,609 INFO L276 IsEmpty]: Start isEmpty. Operand 33762 states and 36326 transitions. [2021-08-29 04:34:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-08-29 04:34:56,619 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:56,619 INFO L513 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:34:56,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-29 04:34:56,620 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:56,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:56,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1148113260, now seen corresponding path program 1 times [2021-08-29 04:34:56,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:56,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104548700] [2021-08-29 04:34:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:56,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-08-29 04:34:56,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:56,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104548700] [2021-08-29 04:34:56,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104548700] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:56,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:56,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:56,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405763593] [2021-08-29 04:34:56,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:56,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:56,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:56,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:56,754 INFO L87 Difference]: Start difference. First operand 33762 states and 36326 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:57,590 INFO L93 Difference]: Finished difference Result 69174 states and 74442 transitions. [2021-08-29 04:34:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:57,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 434 [2021-08-29 04:34:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:57,629 INFO L225 Difference]: With dead ends: 69174 [2021-08-29 04:34:57,630 INFO L226 Difference]: Without dead ends: 35782 [2021-08-29 04:34:57,645 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.35ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:57,645 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 156 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 481.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 590.55ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:57,646 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 0 Invalid, 899 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [107 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 590.55ms Time] [2021-08-29 04:34:57,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35782 states. [2021-08-29 04:34:57,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35782 to 29520. [2021-08-29 04:34:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29520 states, 29519 states have (on average 1.0707679799451202) internal successors, (31608), 29519 states have internal predecessors, (31608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29520 states to 29520 states and 31608 transitions. [2021-08-29 04:34:58,021 INFO L78 Accepts]: Start accepts. Automaton has 29520 states and 31608 transitions. Word has length 434 [2021-08-29 04:34:58,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:58,021 INFO L470 AbstractCegarLoop]: Abstraction has 29520 states and 31608 transitions. [2021-08-29 04:34:58,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand 29520 states and 31608 transitions. [2021-08-29 04:34:58,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2021-08-29 04:34:58,032 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:58,032 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:58,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-29 04:34:58,033 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:58,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:58,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1848032332, now seen corresponding path program 1 times [2021-08-29 04:34:58,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:58,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869287209] [2021-08-29 04:34:58,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:58,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-08-29 04:34:58,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:58,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869287209] [2021-08-29 04:34:58,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869287209] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:34:58,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:34:58,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:34:58,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242539813] [2021-08-29 04:34:58,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:34:58,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:34:58,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:34:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:58,160 INFO L87 Difference]: Start difference. First operand 29520 states and 31608 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:58,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:34:58,900 INFO L93 Difference]: Finished difference Result 57758 states and 61913 transitions. [2021-08-29 04:34:58,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:34:58,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 468 [2021-08-29 04:34:58,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:34:58,943 INFO L225 Difference]: With dead ends: 57758 [2021-08-29 04:34:58,943 INFO L226 Difference]: Without dead ends: 30816 [2021-08-29 04:34:58,960 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:34:58,960 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 134 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 474.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 577.53ms IncrementalHoareTripleChecker+Time [2021-08-29 04:34:58,961 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 0 Invalid, 717 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [48 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 577.53ms Time] [2021-08-29 04:34:58,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30816 states. [2021-08-29 04:34:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30816 to 29152. [2021-08-29 04:34:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29152 states, 29151 states have (on average 1.0702205756234777) internal successors, (31198), 29151 states have internal predecessors, (31198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:59,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31198 transitions. [2021-08-29 04:34:59,319 INFO L78 Accepts]: Start accepts. Automaton has 29152 states and 31198 transitions. Word has length 468 [2021-08-29 04:34:59,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:34:59,320 INFO L470 AbstractCegarLoop]: Abstraction has 29152 states and 31198 transitions. [2021-08-29 04:34:59,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:34:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 29152 states and 31198 transitions. [2021-08-29 04:34:59,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2021-08-29 04:34:59,331 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:34:59,332 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:34:59,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 04:34:59,332 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:34:59,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:34:59,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1117136727, now seen corresponding path program 1 times [2021-08-29 04:34:59,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:34:59,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102025213] [2021-08-29 04:34:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:59,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:34:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 269 proven. 132 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-29 04:34:59,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:34:59,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102025213] [2021-08-29 04:34:59,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102025213] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:34:59,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497443985] [2021-08-29 04:34:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:34:59,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:34:59,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:34:59,588 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) [2021-08-29 04:34:59,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-29 04:34:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:34:59,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 04:34:59,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:35:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 401 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-08-29 04:35:00,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:35:00,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497443985] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:00,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:35:00,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:35:00,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858955002] [2021-08-29 04:35:00,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:00,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:35:00,559 INFO L87 Difference]: Start difference. First operand 29152 states and 31198 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:01,215 INFO L93 Difference]: Finished difference Result 55910 states and 59881 transitions. [2021-08-29 04:35:01,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:01,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 472 [2021-08-29 04:35:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:01,245 INFO L225 Difference]: With dead ends: 55910 [2021-08-29 04:35:01,245 INFO L226 Difference]: Without dead ends: 28782 [2021-08-29 04:35:01,262 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 19.22ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:35:01,263 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 120 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 407.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 502.55ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:01,263 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 0 Invalid, 678 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [19 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 502.55ms Time] [2021-08-29 04:35:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28782 states. [2021-08-29 04:35:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28782 to 28046. [2021-08-29 04:35:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28046 states, 28045 states have (on average 1.0686040292387236) internal successors, (29969), 28045 states have internal predecessors, (29969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:01,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28046 states to 28046 states and 29969 transitions. [2021-08-29 04:35:01,596 INFO L78 Accepts]: Start accepts. Automaton has 28046 states and 29969 transitions. Word has length 472 [2021-08-29 04:35:01,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:01,597 INFO L470 AbstractCegarLoop]: Abstraction has 28046 states and 29969 transitions. [2021-08-29 04:35:01,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 28046 states and 29969 transitions. [2021-08-29 04:35:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2021-08-29 04:35:01,608 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:01,609 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:01,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-29 04:35:01,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:35:01,810 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:01,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:01,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2131901513, now seen corresponding path program 1 times [2021-08-29 04:35:01,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:01,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602559579] [2021-08-29 04:35:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:01,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 599 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-29 04:35:02,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:02,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602559579] [2021-08-29 04:35:02,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602559579] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:02,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:02,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 04:35:02,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441414387] [2021-08-29 04:35:02,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 04:35:02,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 04:35:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:35:02,169 INFO L87 Difference]: Start difference. First operand 28046 states and 29969 transitions. Second operand has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:03,601 INFO L93 Difference]: Finished difference Result 59365 states and 63393 transitions. [2021-08-29 04:35:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 04:35:03,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 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 523 [2021-08-29 04:35:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:03,636 INFO L225 Difference]: With dead ends: 59365 [2021-08-29 04:35:03,636 INFO L226 Difference]: Without dead ends: 33713 [2021-08-29 04:35:03,652 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 69.25ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-29 04:35:03,652 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 334 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 952.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.13ms SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1160.56ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:03,653 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 0 Invalid, 2254 Unknown, 0 Unchecked, 3.13ms Time], IncrementalHoareTripleChecker [343 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 1160.56ms Time] [2021-08-29 04:35:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33713 states. [2021-08-29 04:35:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33713 to 29152. [2021-08-29 04:35:04,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29152 states, 29151 states have (on average 1.069054234846146) internal successors, (31164), 29151 states have internal predecessors, (31164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:04,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29152 states to 29152 states and 31164 transitions. [2021-08-29 04:35:04,216 INFO L78 Accepts]: Start accepts. Automaton has 29152 states and 31164 transitions. Word has length 523 [2021-08-29 04:35:04,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:04,216 INFO L470 AbstractCegarLoop]: Abstraction has 29152 states and 31164 transitions. [2021-08-29 04:35:04,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 56.285714285714285) internal successors, (394), 6 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:04,216 INFO L276 IsEmpty]: Start isEmpty. Operand 29152 states and 31164 transitions. [2021-08-29 04:35:04,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2021-08-29 04:35:04,233 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:04,233 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:04,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-29 04:35:04,234 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:04,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:04,234 INFO L82 PathProgramCache]: Analyzing trace with hash 435204898, now seen corresponding path program 1 times [2021-08-29 04:35:04,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:04,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583252966] [2021-08-29 04:35:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:04,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 606 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-29 04:35:04,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:04,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583252966] [2021-08-29 04:35:04,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583252966] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:35:04,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705293219] [2021-08-29 04:35:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:04,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:35:04,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:35:04,553 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:35:04,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-29 04:35:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:04,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:35:04,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:35:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-29 04:35:06,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 04:35:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 493 proven. 121 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-08-29 04:35:11,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705293219] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 04:35:11,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 04:35:11,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2021-08-29 04:35:11,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911142715] [2021-08-29 04:35:11,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-29 04:35:11,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:11,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-29 04:35:11,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-29 04:35:11,555 INFO L87 Difference]: Start difference. First operand 29152 states and 31164 transitions. Second operand has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:15,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:15,307 INFO L93 Difference]: Finished difference Result 62639 states and 66777 transitions. [2021-08-29 04:35:15,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-29 04:35:15,307 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 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 533 [2021-08-29 04:35:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:15,339 INFO L225 Difference]: With dead ends: 62639 [2021-08-29 04:35:15,339 INFO L226 Difference]: Without dead ends: 29171 [2021-08-29 04:35:15,359 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 726.08ms TimeCoverageRelationStatistics Valid=368, Invalid=964, Unknown=0, NotChecked=0, Total=1332 [2021-08-29 04:35:15,359 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1452 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2304.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.85ms SdHoareTripleChecker+Time, 979 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2772.48ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:15,360 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 0 Invalid, 4781 Unknown, 0 Unchecked, 7.85ms Time], IncrementalHoareTripleChecker [979 Valid, 3802 Invalid, 0 Unknown, 0 Unchecked, 2772.48ms Time] [2021-08-29 04:35:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29171 states. [2021-08-29 04:35:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29171 to 14401. [2021-08-29 04:35:15,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14401 states, 14400 states have (on average 1.0522916666666666) internal successors, (15153), 14400 states have internal predecessors, (15153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14401 states to 14401 states and 15153 transitions. [2021-08-29 04:35:15,585 INFO L78 Accepts]: Start accepts. Automaton has 14401 states and 15153 transitions. Word has length 533 [2021-08-29 04:35:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:15,585 INFO L470 AbstractCegarLoop]: Abstraction has 14401 states and 15153 transitions. [2021-08-29 04:35:15,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 88.36363636363636) internal successors, (972), 10 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 14401 states and 15153 transitions. [2021-08-29 04:35:15,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2021-08-29 04:35:15,592 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:15,593 INFO L513 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:15,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-08-29 04:35:15,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-08-29 04:35:15,794 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:15,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1729367067, now seen corresponding path program 1 times [2021-08-29 04:35:15,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:15,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284933301] [2021-08-29 04:35:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:15,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 390 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-29 04:35:15,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:15,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284933301] [2021-08-29 04:35:15,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284933301] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:35:15,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037090809] [2021-08-29 04:35:15,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:15,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:35:15,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:35:15,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:35:16,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-29 04:35:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:16,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 04:35:16,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:35:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 341 proven. 255 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-29 04:35:19,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 04:35:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 527 proven. 69 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-08-29 04:35:21,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037090809] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 04:35:21,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 04:35:21,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-08-29 04:35:21,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450021862] [2021-08-29 04:35:21,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-29 04:35:21,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:21,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-29 04:35:21,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-08-29 04:35:21,687 INFO L87 Difference]: Start difference. First operand 14401 states and 15153 transitions. Second operand has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:24,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:24,245 INFO L93 Difference]: Finished difference Result 36371 states and 38285 transitions. [2021-08-29 04:35:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 04:35:24,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 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 536 [2021-08-29 04:35:24,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:24,268 INFO L225 Difference]: With dead ends: 36371 [2021-08-29 04:35:24,268 INFO L226 Difference]: Without dead ends: 20500 [2021-08-29 04:35:24,278 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1066 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 70.26ms TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2021-08-29 04:35:24,279 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1134 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 3203 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1971.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.61ms SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 3203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2357.93ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:24,279 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 0 Invalid, 3631 Unknown, 0 Unchecked, 5.61ms Time], IncrementalHoareTripleChecker [428 Valid, 3203 Invalid, 0 Unknown, 0 Unchecked, 2357.93ms Time] [2021-08-29 04:35:24,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20500 states. [2021-08-29 04:35:24,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20500 to 18461. [2021-08-29 04:35:24,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18461 states, 18460 states have (on average 1.0465872156013) internal successors, (19320), 18460 states have internal predecessors, (19320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18461 states to 18461 states and 19320 transitions. [2021-08-29 04:35:24,547 INFO L78 Accepts]: Start accepts. Automaton has 18461 states and 19320 transitions. Word has length 536 [2021-08-29 04:35:24,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:24,547 INFO L470 AbstractCegarLoop]: Abstraction has 18461 states and 19320 transitions. [2021-08-29 04:35:24,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 84.3) internal successors, (843), 10 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:24,548 INFO L276 IsEmpty]: Start isEmpty. Operand 18461 states and 19320 transitions. [2021-08-29 04:35:24,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2021-08-29 04:35:24,559 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:24,560 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:24,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-29 04:35:24,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-08-29 04:35:24,773 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:24,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:24,773 INFO L82 PathProgramCache]: Analyzing trace with hash -90709383, now seen corresponding path program 1 times [2021-08-29 04:35:24,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:24,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782994608] [2021-08-29 04:35:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:24,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:25,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 984 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2021-08-29 04:35:25,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:25,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782994608] [2021-08-29 04:35:25,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782994608] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:25,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:25,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:25,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845516363] [2021-08-29 04:35:25,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:25,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:25,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:25,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:25,003 INFO L87 Difference]: Start difference. First operand 18461 states and 19320 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:25,672 INFO L93 Difference]: Finished difference Result 33964 states and 35530 transitions. [2021-08-29 04:35:25,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:25,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 670 [2021-08-29 04:35:25,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:25,688 INFO L225 Difference]: With dead ends: 33964 [2021-08-29 04:35:25,688 INFO L226 Difference]: Without dead ends: 15689 [2021-08-29 04:35:25,697 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:25,698 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 91 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 460.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 562.84ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:25,699 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 0 Invalid, 781 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [92 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 562.84ms Time] [2021-08-29 04:35:25,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15689 states. [2021-08-29 04:35:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15689 to 13107. [2021-08-29 04:35:25,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13107 states, 13106 states have (on average 1.0424996184953457) internal successors, (13663), 13106 states have internal predecessors, (13663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:25,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13107 states to 13107 states and 13663 transitions. [2021-08-29 04:35:25,849 INFO L78 Accepts]: Start accepts. Automaton has 13107 states and 13663 transitions. Word has length 670 [2021-08-29 04:35:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:25,849 INFO L470 AbstractCegarLoop]: Abstraction has 13107 states and 13663 transitions. [2021-08-29 04:35:25,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 13107 states and 13663 transitions. [2021-08-29 04:35:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2021-08-29 04:35:25,856 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:25,856 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:25,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-29 04:35:25,856 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:25,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1179876378, now seen corresponding path program 1 times [2021-08-29 04:35:25,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:25,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872955359] [2021-08-29 04:35:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:25,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 1067 proven. 0 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2021-08-29 04:35:26,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:26,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872955359] [2021-08-29 04:35:26,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872955359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:26,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:26,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:26,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021507105] [2021-08-29 04:35:26,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:26,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:26,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:26,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:26,044 INFO L87 Difference]: Start difference. First operand 13107 states and 13663 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:26,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:26,590 INFO L93 Difference]: Finished difference Result 25847 states and 26954 transitions. [2021-08-29 04:35:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:26,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 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 671 [2021-08-29 04:35:26,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:26,603 INFO L225 Difference]: With dead ends: 25847 [2021-08-29 04:35:26,603 INFO L226 Difference]: Without dead ends: 12742 [2021-08-29 04:35:26,611 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:26,611 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 110 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 377.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 466.98ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:26,612 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 0 Invalid, 790 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [19 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 466.98ms Time] [2021-08-29 04:35:26,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12742 states. [2021-08-29 04:35:26,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12742 to 10899. [2021-08-29 04:35:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10899 states, 10898 states have (on average 1.0387227014131033) internal successors, (11320), 10898 states have internal predecessors, (11320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:26,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10899 states to 10899 states and 11320 transitions. [2021-08-29 04:35:26,726 INFO L78 Accepts]: Start accepts. Automaton has 10899 states and 11320 transitions. Word has length 671 [2021-08-29 04:35:26,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:26,726 INFO L470 AbstractCegarLoop]: Abstraction has 10899 states and 11320 transitions. [2021-08-29 04:35:26,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:26,726 INFO L276 IsEmpty]: Start isEmpty. Operand 10899 states and 11320 transitions. [2021-08-29 04:35:26,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2021-08-29 04:35:26,732 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:26,732 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:35:26,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-29 04:35:26,732 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:26,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:26,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1608734886, now seen corresponding path program 1 times [2021-08-29 04:35:26,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:26,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858315583] [2021-08-29 04:35:26,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:26,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 911 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-08-29 04:35:26,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:26,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858315583] [2021-08-29 04:35:26,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858315583] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:26,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:26,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:35:26,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202899063] [2021-08-29 04:35:26,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:35:26,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:26,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:35:26,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:35:26,941 INFO L87 Difference]: Start difference. First operand 10899 states and 11320 transitions. Second operand has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:27,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:27,850 INFO L93 Difference]: Finished difference Result 23829 states and 24745 transitions. [2021-08-29 04:35:27,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:35:27,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 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 677 [2021-08-29 04:35:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:27,862 INFO L225 Difference]: With dead ends: 23829 [2021-08-29 04:35:27,862 INFO L226 Difference]: Without dead ends: 13300 [2021-08-29 04:35:27,868 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.26ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:35:27,869 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 219 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 669.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 815.69ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:27,869 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 0 Invalid, 1077 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [89 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 815.69ms Time] [2021-08-29 04:35:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13300 states. [2021-08-29 04:35:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13300 to 9985. [2021-08-29 04:35:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9985 states, 9984 states have (on average 1.0360576923076923) internal successors, (10344), 9984 states have internal predecessors, (10344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9985 states to 9985 states and 10344 transitions. [2021-08-29 04:35:27,982 INFO L78 Accepts]: Start accepts. Automaton has 9985 states and 10344 transitions. Word has length 677 [2021-08-29 04:35:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:27,982 INFO L470 AbstractCegarLoop]: Abstraction has 9985 states and 10344 transitions. [2021-08-29 04:35:27,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 9985 states and 10344 transitions. [2021-08-29 04:35:27,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2021-08-29 04:35:27,989 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:27,989 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:27,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-29 04:35:27,989 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:27,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:27,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1890581185, now seen corresponding path program 1 times [2021-08-29 04:35:27,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:27,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318975946] [2021-08-29 04:35:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:27,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1390 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-08-29 04:35:28,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:28,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318975946] [2021-08-29 04:35:28,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318975946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:28,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:28,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:35:28,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229745732] [2021-08-29 04:35:28,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:35:28,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:28,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:35:28,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:35:28,247 INFO L87 Difference]: Start difference. First operand 9985 states and 10344 transitions. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:29,004 INFO L93 Difference]: Finished difference Result 20155 states and 20879 transitions. [2021-08-29 04:35:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:35:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 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 733 [2021-08-29 04:35:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:29,013 INFO L225 Difference]: With dead ends: 20155 [2021-08-29 04:35:29,013 INFO L226 Difference]: Without dead ends: 10908 [2021-08-29 04:35:29,018 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.54ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:35:29,019 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 235 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 559.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 683.61ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:29,019 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 0 Invalid, 1030 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [70 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 683.61ms Time] [2021-08-29 04:35:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2021-08-29 04:35:29,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 8319. [2021-08-29 04:35:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8319 states, 8318 states have (on average 1.0373887953835057) internal successors, (8629), 8318 states have internal predecessors, (8629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8319 states to 8319 states and 8629 transitions. [2021-08-29 04:35:29,102 INFO L78 Accepts]: Start accepts. Automaton has 8319 states and 8629 transitions. Word has length 733 [2021-08-29 04:35:29,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:29,103 INFO L470 AbstractCegarLoop]: Abstraction has 8319 states and 8629 transitions. [2021-08-29 04:35:29,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8319 states and 8629 transitions. [2021-08-29 04:35:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2021-08-29 04:35:29,108 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:29,108 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:29,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-29 04:35:29,109 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:29,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:29,109 INFO L82 PathProgramCache]: Analyzing trace with hash 470610289, now seen corresponding path program 1 times [2021-08-29 04:35:29,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:29,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014183851] [2021-08-29 04:35:29,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:29,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1484 backedges. 1018 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-08-29 04:35:29,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:29,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014183851] [2021-08-29 04:35:29,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014183851] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:29,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:29,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:29,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59515051] [2021-08-29 04:35:29,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:29,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:29,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:29,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:29,316 INFO L87 Difference]: Start difference. First operand 8319 states and 8629 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:29,781 INFO L93 Difference]: Finished difference Result 12572 states and 13010 transitions. [2021-08-29 04:35:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 757 [2021-08-29 04:35:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:29,782 INFO L225 Difference]: With dead ends: 12572 [2021-08-29 04:35:29,782 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 04:35:29,785 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:29,786 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 86 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 333.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 411.67ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:29,786 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 0 Invalid, 487 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [51 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 411.67ms Time] [2021-08-29 04:35:29,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 04:35:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 04:35:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 04:35:29,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 757 [2021-08-29 04:35:29,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:29,788 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 04:35:29,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:29,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 04:35:29,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 04:35:29,790 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 04:35:29,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-29 04:35:29,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 04:35:29,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:35:34,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:35:39,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:35:48,538 WARN L210 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 1151 DAG size of output: 186 [2021-08-29 04:35:57,970 WARN L210 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 1151 DAG size of output: 186 [2021-08-29 04:35:57,974 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-29 04:35:57,974 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-29 04:35:57,975 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,976 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-29 04:35:57,977 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-29 04:35:57,978 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse33 (div (+ (* ~a29~0 3) (- 554771)) 5))) (let ((.cse32 (div (+ 25350 .cse33) 5)) (.cse15 (<= ~a25~0 10)) (.cse8 (= ~a4~0 1)) (.cse6 (<= ~a29~0 130)) (.cse21 (<= ~a23~0 306)) (.cse10 (= ~a25~0 12))) (let ((.cse19 (or (<= ~a29~0 277) .cse21 (not .cse10))) (.cse2 (= ~a25~0 11)) (.cse14 (<= 307 ~a23~0)) (.cse11 (<= 21782 ~a23~0)) (.cse0 (<= (+ ~a23~0 55) 0)) (.cse31 (or (and .cse10 .cse8 .cse6) (and .cse15 .cse8 .cse6))) (.cse22 (<= 260 ~a29~0)) (.cse18 (< 0 (+ ~a23~0 43))) (.cse17 (< 245 ~a29~0)) (.cse25 (<= ~a4~0 0)) (.cse1 (< 0 (+ .cse32 110635))) (.cse7 (<= ~a23~0 599997)) (.cse4 (or (< 0 (+ .cse32 110634)) (not (= (mod .cse33 5) 0)))) (.cse9 (= ~a25~0 10)) (.cse16 (<= 246 ~a29~0)) (.cse30 (<= ~a23~0 312)) (.cse13 (<= 130 ~a29~0)) (.cse24 (<= 141 ~a29~0)) (.cse28 (<= ~a29~0 232)) (.cse20 (= ~a25~0 13)) (.cse26 (<= 0 (+ ~a23~0 599772))) (.cse12 (<= ~a23~0 247)) (.cse23 (<= ~a29~0 274)) (.cse3 (= ~a3~0 1)) (.cse29 (<= 253 ~a29~0)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 (<= 0 (+ ~a29~0 554195)) .cse5 .cse9) (and .cse10 .cse1 .cse7 .cse3 .cse11 .cse4 .cse8 .cse5 (not (= ULTIMATE.start_calculate_output_~input 1)) .cse6) (and .cse12 .cse2 .cse8 .cse5 .cse13) (and .cse14 .cse15 .cse3 .cse8 .cse5 .cse16) (and .cse17 .cse12 .cse18 .cse15 .cse3 .cse8 .cse5) (and .cse19 .cse3 .cse8 .cse5 (<= 115953 ~a29~0) (or (not .cse20) .cse21)) (and .cse2 .cse18 (< 277 ~a29~0) .cse3 .cse8 .cse5 .cse16) (and .cse20 .cse1 .cse7 .cse14 .cse3 .cse4 .cse8 .cse5) (and .cse22 .cse15 .cse3 .cse8 .cse5) (and (<= ~a23~0 600000) (or (and .cse10 .cse23 .cse3 .cse8 .cse5 .cse16) (and .cse10 .cse19 .cse17 .cse14 .cse3 .cse8 .cse5) (and .cse2 .cse18 .cse3 .cse8 .cse5 .cse16))) (and .cse0 .cse10 .cse23 .cse24 .cse3 .cse5 .cse25) (and .cse0 .cse10 .cse26 .cse1 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse4 .cse5 .cse25 .cse6) (and (let ((.cse27 (<= ~a29~0 220))) (or (and .cse2 .cse3 .cse27 .cse8 .cse5) (and .cse10 .cse3 .cse11 .cse8 .cse28 .cse5) (and .cse10 .cse14 .cse3 .cse27 .cse8 .cse5))) .cse7 .cse24) (and (or (and .cse10 .cse12 .cse23 .cse8 .cse13) (and .cse20 .cse12 .cse23 .cse8 .cse13)) .cse3 .cse5) (and .cse10 .cse12 .cse23 .cse3 .cse29 .cse5) (and .cse1 (or (and (<= ~a29~0 140) .cse15 .cse3 .cse8 .cse30 .cse5) (and .cse31 .cse3 .cse30 .cse5)) .cse18 .cse4) (and .cse15 .cse24 .cse3 .cse11 .cse8 .cse5) (and .cse0 .cse1 .cse15 .cse3 .cse4 .cse5 .cse6) (and .cse12 (<= 10250 ~a29~0) .cse3 (<= ~a25~0 9) .cse5) (and .cse26 (or (and .cse20 .cse12 .cse8 .cse5 .cse6) (and .cse31 .cse12 .cse5) (and .cse10 .cse12 .cse8 .cse5)) .cse3) (and .cse20 .cse22 .cse18 .cse3 .cse8 .cse30 .cse5) (and (<= ~a29~0 275) .cse10 .cse17 .cse3 .cse5 .cse25) (and .cse20 .cse26 .cse1 .cse7 .cse3 .cse4 .cse8 .cse5 .cse6) (and .cse12 .cse8 .cse5 .cse9) (and .cse10 .cse26 .cse12 .cse23 .cse3 .cse5 .cse16) (and .cse20 .cse3 .cse8 .cse30 .cse28 .cse5 .cse13) (and .cse20 .cse24 .cse3 .cse8 .cse28 .cse5) (and .cse20 .cse26 .cse12 .cse23 .cse3 .cse29 .cse5))))) [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,979 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-29 04:35:57,980 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,981 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-29 04:35:57,982 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-29 04:35:57,982 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-29 04:35:57,982 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,982 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse33 (div (+ (* ~a29~0 3) (- 554771)) 5))) (let ((.cse32 (div (+ 25350 .cse33) 5)) (.cse15 (<= ~a25~0 10)) (.cse8 (= ~a4~0 1)) (.cse6 (<= ~a29~0 130)) (.cse21 (<= ~a23~0 306)) (.cse10 (= ~a25~0 12))) (let ((.cse19 (or (<= ~a29~0 277) .cse21 (not .cse10))) (.cse2 (= ~a25~0 11)) (.cse14 (<= 307 ~a23~0)) (.cse11 (<= 21782 ~a23~0)) (.cse0 (<= (+ ~a23~0 55) 0)) (.cse31 (or (and .cse10 .cse8 .cse6) (and .cse15 .cse8 .cse6))) (.cse22 (<= 260 ~a29~0)) (.cse18 (< 0 (+ ~a23~0 43))) (.cse17 (< 245 ~a29~0)) (.cse25 (<= ~a4~0 0)) (.cse1 (< 0 (+ .cse32 110635))) (.cse7 (<= ~a23~0 599997)) (.cse4 (or (< 0 (+ .cse32 110634)) (not (= (mod .cse33 5) 0)))) (.cse9 (= ~a25~0 10)) (.cse16 (<= 246 ~a29~0)) (.cse30 (<= ~a23~0 312)) (.cse13 (<= 130 ~a29~0)) (.cse24 (<= 141 ~a29~0)) (.cse28 (<= ~a29~0 232)) (.cse20 (= ~a25~0 13)) (.cse26 (<= 0 (+ ~a23~0 599772))) (.cse12 (<= ~a23~0 247)) (.cse23 (<= ~a29~0 274)) (.cse3 (= ~a3~0 1)) (.cse29 (<= 253 ~a29~0)) (.cse5 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 (<= 0 (+ ~a29~0 554195)) .cse5 .cse9) (and .cse10 .cse1 .cse7 .cse3 .cse11 .cse4 .cse8 .cse5 (not (= ULTIMATE.start_calculate_output_~input 1)) .cse6) (and .cse12 .cse2 .cse8 .cse5 .cse13) (and .cse14 .cse15 .cse3 .cse8 .cse5 .cse16) (and .cse17 .cse12 .cse18 .cse15 .cse3 .cse8 .cse5) (and .cse19 .cse3 .cse8 .cse5 (<= 115953 ~a29~0) (or (not .cse20) .cse21)) (and .cse2 .cse18 (< 277 ~a29~0) .cse3 .cse8 .cse5 .cse16) (and .cse20 .cse1 .cse7 .cse14 .cse3 .cse4 .cse8 .cse5) (and .cse22 .cse15 .cse3 .cse8 .cse5) (and (<= ~a23~0 600000) (or (and .cse10 .cse23 .cse3 .cse8 .cse5 .cse16) (and .cse10 .cse19 .cse17 .cse14 .cse3 .cse8 .cse5) (and .cse2 .cse18 .cse3 .cse8 .cse5 .cse16))) (and .cse0 .cse10 .cse23 .cse24 .cse3 .cse5 .cse25) (and .cse0 .cse10 .cse26 .cse1 (not (= 3 ULTIMATE.start_calculate_output_~input)) .cse3 .cse4 .cse5 .cse25 .cse6) (and (let ((.cse27 (<= ~a29~0 220))) (or (and .cse2 .cse3 .cse27 .cse8 .cse5) (and .cse10 .cse3 .cse11 .cse8 .cse28 .cse5) (and .cse10 .cse14 .cse3 .cse27 .cse8 .cse5))) .cse7 .cse24) (and (or (and .cse10 .cse12 .cse23 .cse8 .cse13) (and .cse20 .cse12 .cse23 .cse8 .cse13)) .cse3 .cse5) (and .cse10 .cse12 .cse23 .cse3 .cse29 .cse5) (and .cse1 (or (and (<= ~a29~0 140) .cse15 .cse3 .cse8 .cse30 .cse5) (and .cse31 .cse3 .cse30 .cse5)) .cse18 .cse4) (and .cse15 .cse24 .cse3 .cse11 .cse8 .cse5) (and .cse0 .cse1 .cse15 .cse3 .cse4 .cse5 .cse6) (and .cse12 (<= 10250 ~a29~0) .cse3 (<= ~a25~0 9) .cse5) (and .cse26 (or (and .cse20 .cse12 .cse8 .cse5 .cse6) (and .cse31 .cse12 .cse5) (and .cse10 .cse12 .cse8 .cse5)) .cse3) (and .cse20 .cse22 .cse18 .cse3 .cse8 .cse30 .cse5) (and (<= ~a29~0 275) .cse10 .cse17 .cse3 .cse5 .cse25) (and .cse20 .cse26 .cse1 .cse7 .cse3 .cse4 .cse8 .cse5 .cse6) (and .cse12 .cse8 .cse5 .cse9) (and .cse10 .cse26 .cse12 .cse23 .cse3 .cse5 .cse16) (and .cse20 .cse3 .cse8 .cse30 .cse28 .cse5 .cse13) (and .cse20 .cse24 .cse3 .cse8 .cse28 .cse5) (and .cse20 .cse26 .cse12 .cse23 .cse3 .cse29 .cse5))))) [2021-08-29 04:35:57,982 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,982 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-29 04:35:57,983 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,984 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-29 04:35:57,985 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,986 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-29 04:35:57,987 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-29 04:35:57,988 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,989 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-29 04:35:57,990 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-29 04:35:57,991 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-29 04:35:57,992 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-29 04:35:57,993 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,994 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,995 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-29 04:35:57,996 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,997 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-29 04:35:57,998 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-29 04:35:57,999 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,000 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,001 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-29 04:35:58,002 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,003 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,004 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,005 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-29 04:35:58,006 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-29 04:35:58,007 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-29 04:35:58,007 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-29 04:35:58,010 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 04:35:58,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:35:58 BoogieIcfgContainer [2021-08-29 04:35:58,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 04:35:58,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 04:35:58,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 04:35:58,042 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 04:35:58,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:34:15" (3/4) ... [2021-08-29 04:35:58,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 04:35:58,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 04:35:58,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 04:35:58,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:35:58,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:35:58,197 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 04:35:58,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 04:35:58,197 INFO L158 Benchmark]: Toolchain (without parser) took 104764.77ms. Allocated memory was 52.4MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 26.1MB in the beginning and 852.0MB in the end (delta: -825.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2021-08-29 04:35:58,198 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 04:35:58,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 816.05ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 25.8MB in the beginning and 34.5MB in the end (delta: -8.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-08-29 04:35:58,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.28ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 34.2MB in the end (delta: 370.6kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 04:35:58,206 INFO L158 Benchmark]: Boogie Preprocessor took 116.02ms. Allocated memory is still 69.2MB. Free memory was 34.2MB in the beginning and 35.9MB in the end (delta: -1.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-08-29 04:35:58,206 INFO L158 Benchmark]: RCFGBuilder took 679.05ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 35.7MB in the beginning and 41.5MB in the end (delta: -5.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2021-08-29 04:35:58,207 INFO L158 Benchmark]: TraceAbstraction took 102840.95ms. Allocated memory was 86.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 41.1MB in the beginning and 878.2MB in the end (delta: -837.1MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2021-08-29 04:35:58,207 INFO L158 Benchmark]: Witness Printer took 154.96ms. Allocated memory is still 1.9GB. Free memory was 878.2MB in the beginning and 852.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-08-29 04:35:58,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 52.4MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 816.05ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 25.8MB in the beginning and 34.5MB in the end (delta: -8.7MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.28ms. Allocated memory is still 69.2MB. Free memory was 34.5MB in the beginning and 34.2MB in the end (delta: 370.6kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.02ms. Allocated memory is still 69.2MB. Free memory was 34.2MB in the beginning and 35.9MB in the end (delta: -1.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * RCFGBuilder took 679.05ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 35.7MB in the beginning and 41.5MB in the end (delta: -5.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * TraceAbstraction took 102840.95ms. Allocated memory was 86.0MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 41.1MB in the beginning and 878.2MB in the end (delta: -837.1MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 154.96ms. Allocated memory is still 1.9GB. Free memory was 878.2MB in the beginning and 852.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 169]: 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: 102763.99ms, OverallIterations: 32, TraceHistogramMax: 7, EmptinessCheckTime: 244.36ms, AutomataDifference: 39938.83ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 28183.59ms, InitialAbstractionConstructionTime: 23.16ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12595 SdHoareTripleChecker+Valid, 33359.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12595 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 27211.08ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1069 mSDsCounter, 6696 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38821 IncrementalHoareTripleChecker+Invalid, 45517 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6696 mSolverCounterUnsat, 0 mSDtfsCounter, 38821 mSolverCounterSat, 129.57ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3870 GetRequests, 3737 SyntacticMatches, 1 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 881 ImplicationChecksByTransitivity, 1540.07ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35614occurred in iteration=20, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 6179.20ms AutomataMinimizationTime, 32 MinimizatonAttempts, 62653 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 245 NumberOfFragments, 2227 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6385132 FormulaSimplificationTreeSizeReduction, 9352.63ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 1945052 FormulaSimplificationTreeSizeReductionInter, 18811.82ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 517.24ms SsaConstructionTime, 1743.84ms SatisfiabilityAnalysisTime, 24309.21ms InterpolantComputationTime, 14284 NumberOfCodeBlocks, 14284 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 15702 ConstructedInterpolants, 0 QuantifiedInterpolants, 66517 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3113 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 40 InterpolantComputations, 29 PerfectInterpolantSequences, 19366/20973 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: (((((((((((((((((((((((((((((((((a23 + 55 <= 0 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a25 == 11) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a29 <= 130) || (((((a23 <= 599997 && a3 == 1) && a4 == 1) && 0 <= a29 + 554195) && a8 == 15) && a25 == 10)) || (((((((((a25 == 12 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && a3 == 1) && 21782 <= a23) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15) && !(input == 1)) && a29 <= 130)) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((307 <= a23 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((245 < a29 && a23 <= 247) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && a3 == 1) && a4 == 1) && a8 == 15) && 115953 <= a29) && (!(a25 == 13) || a23 <= 306))) || ((((((a25 == 11 && 0 < a23 + 43) && 277 < a29) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((((a25 == 13 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && 307 <= a23) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15)) || ((((260 <= a29 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (a23 <= 600000 && (((((((a25 == 12 && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((((a25 == 12 && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 245 < a29) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 11 && 0 < a23 + 43) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)))) || ((((((a23 + 55 <= 0 && a25 == 12) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((((((a23 + 55 <= 0 && a25 == 12) && 0 <= a23 + 599772) && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && !(3 == input)) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a4 <= 0) && a29 <= 130)) || ((((((((a25 == 11 && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a25 == 12 && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232) && a8 == 15)) || (((((a25 == 12 && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15)) && a23 <= 599997) && 141 <= a29)) || (((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a23 <= 247) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || (((0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635 && ((((((a29 <= 140 && a25 <= 10) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) || ((((((a25 == 12 && a4 == 1) && a29 <= 130) || ((a25 <= 10 && a4 == 1) && a29 <= 130)) && a3 == 1) && a23 <= 312) && a8 == 15))) && 0 < a23 + 43) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0)))) || (((((a25 <= 10 && 141 <= a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || ((((((a23 + 55 <= 0 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a25 <= 10) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a29 <= 130)) || ((((a23 <= 247 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || ((0 <= a23 + 599772 && ((((((a25 == 13 && a23 <= 247) && a4 == 1) && a8 == 15) && a29 <= 130) || (((((a25 == 12 && a4 == 1) && a29 <= 130) || ((a25 <= 10 && a4 == 1) && a29 <= 130)) && a23 <= 247) && a8 == 15)) || (((a25 == 12 && a23 <= 247) && a4 == 1) && a8 == 15))) && a3 == 1)) || ((((((a25 == 13 && 260 <= a29) && 0 < a23 + 43) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 245 < a29) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((((((a25 == 13 && 0 <= a23 + 599772) && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15) && a29 <= 130)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || ((((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a3 == 1) && a4 == 1) && a23 <= 312) && a29 <= 232) && a8 == 15) && 130 <= a29)) || (((((a25 == 13 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15)) || ((((((a25 == 13 && 0 <= a23 + 599772) && a23 <= 247) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((a23 + 55 <= 0 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a25 == 11) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a29 <= 130) || (((((a23 <= 599997 && a3 == 1) && a4 == 1) && 0 <= a29 + 554195) && a8 == 15) && a25 == 10)) || (((((((((a25 == 12 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && a3 == 1) && 21782 <= a23) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15) && !(input == 1)) && a29 <= 130)) || ((((a23 <= 247 && a25 == 11) && a4 == 1) && a8 == 15) && 130 <= a29)) || (((((307 <= a23 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || ((((((245 < a29 && a23 <= 247) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && a3 == 1) && a4 == 1) && a8 == 15) && 115953 <= a29) && (!(a25 == 13) || a23 <= 306))) || ((((((a25 == 11 && 0 < a23 + 43) && 277 < a29) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)) || (((((((a25 == 13 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && 307 <= a23) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15)) || ((((260 <= a29 && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15)) || (a23 <= 600000 && (((((((a25 == 12 && a29 <= 274) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29) || ((((((a25 == 12 && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 245 < a29) && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 11 && 0 < a23 + 43) && a3 == 1) && a4 == 1) && a8 == 15) && 246 <= a29)))) || ((((((a23 + 55 <= 0 && a25 == 12) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((((((a23 + 55 <= 0 && a25 == 12) && 0 <= a23 + 599772) && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && !(3 == input)) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a4 <= 0) && a29 <= 130)) || ((((((((a25 == 11 && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15) || (((((a25 == 12 && a3 == 1) && 21782 <= a23) && a4 == 1) && a29 <= 232) && a8 == 15)) || (((((a25 == 12 && 307 <= a23) && a3 == 1) && a29 <= 220) && a4 == 1) && a8 == 15)) && a23 <= 599997) && 141 <= a29)) || (((((((a25 == 12 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29) || ((((a25 == 13 && a23 <= 247) && a29 <= 274) && a4 == 1) && 130 <= a29)) && a3 == 1) && a8 == 15)) || (((((a25 == 12 && a23 <= 247) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15)) || (((0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635 && ((((((a29 <= 140 && a25 <= 10) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) || ((((((a25 == 12 && a4 == 1) && a29 <= 130) || ((a25 <= 10 && a4 == 1) && a29 <= 130)) && a3 == 1) && a23 <= 312) && a8 == 15))) && 0 < a23 + 43) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0)))) || (((((a25 <= 10 && 141 <= a29) && a3 == 1) && 21782 <= a23) && a4 == 1) && a8 == 15)) || ((((((a23 + 55 <= 0 && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a25 <= 10) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a8 == 15) && a29 <= 130)) || ((((a23 <= 247 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || ((0 <= a23 + 599772 && ((((((a25 == 13 && a23 <= 247) && a4 == 1) && a8 == 15) && a29 <= 130) || (((((a25 == 12 && a4 == 1) && a29 <= 130) || ((a25 <= 10 && a4 == 1) && a29 <= 130)) && a23 <= 247) && a8 == 15)) || (((a25 == 12 && a23 <= 247) && a4 == 1) && a8 == 15))) && a3 == 1)) || ((((((a25 == 13 && 260 <= a29) && 0 < a23 + 43) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && 245 < a29) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((((((a25 == 13 && 0 <= a23 + 599772) && 0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110635) && a23 <= 599997) && a3 == 1) && (0 < (25350 + (a29 * 3 + -554771) / 5) / 5 + 110634 || !((a29 * 3 + -554771) / 5 % 5 == 0))) && a4 == 1) && a8 == 15) && a29 <= 130)) || (((a23 <= 247 && a4 == 1) && a8 == 15) && a25 == 10)) || ((((((a25 == 12 && 0 <= a23 + 599772) && a23 <= 247) && a29 <= 274) && a3 == 1) && a8 == 15) && 246 <= a29)) || ((((((a25 == 13 && a3 == 1) && a4 == 1) && a23 <= 312) && a29 <= 232) && a8 == 15) && 130 <= a29)) || (((((a25 == 13 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15)) || ((((((a25 == 13 && 0 <= a23 + 599772) && a23 <= 247) && a29 <= 274) && a3 == 1) && 253 <= a29) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-29 04:35:58,252 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...