./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label48.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/Problem14_label48.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 cf43e00e18ad1c61020b5197eeefd3b6814bc992 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 04:54:33,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 04:54:33,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 04:54:33,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 04:54:33,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 04:54:33,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 04:54:33,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 04:54:33,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 04:54:33,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 04:54:33,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 04:54:33,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 04:54:33,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 04:54:33,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 04:54:33,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 04:54:33,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 04:54:33,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 04:54:33,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 04:54:33,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 04:54:33,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 04:54:33,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 04:54:33,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 04:54:33,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 04:54:33,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 04:54:33,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 04:54:33,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 04:54:33,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 04:54:33,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 04:54:33,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 04:54:33,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 04:54:33,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 04:54:33,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 04:54:33,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 04:54:33,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 04:54:33,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 04:54:33,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 04:54:33,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 04:54:33,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 04:54:33,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 04:54:33,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 04:54:33,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 04:54:33,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 04:54:33,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 04:54:33,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 04:54:33,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 04:54:33,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 04:54:33,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 04:54:33,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 04:54:33,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 04:54:33,607 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 04:54:33,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 04:54:33,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 04:54:33,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 04:54:33,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 04:54:33,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 04:54:33,609 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 04:54:33,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 04:54:33,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 04:54:33,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 04:54:33,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 04:54:33,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:54:33,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 04:54:33,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 04:54:33,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 04:54:33,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 04:54:33,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 04:54:33,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 04:54:33,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 04:54:33,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf43e00e18ad1c61020b5197eeefd3b6814bc992 [2021-08-29 04:54:33,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 04:54:33,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 04:54:33,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 04:54:33,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 04:54:33,903 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 04:54:33,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2021-08-29 04:54:33,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b8596fd/f6675614e2db4056a2033860e8b3764a/FLAGa1defe200 [2021-08-29 04:54:34,429 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 04:54:34,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2021-08-29 04:54:34,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b8596fd/f6675614e2db4056a2033860e8b3764a/FLAGa1defe200 [2021-08-29 04:54:34,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23b8596fd/f6675614e2db4056a2033860e8b3764a [2021-08-29 04:54:34,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 04:54:34,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 04:54:34,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 04:54:34,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 04:54:34,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 04:54:34,488 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:54:34" (1/1) ... [2021-08-29 04:54:34,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5455eecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:34, skipping insertion in model container [2021-08-29 04:54:34,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:54:34" (1/1) ... [2021-08-29 04:54:34,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 04:54:34,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 04:54:34,726 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/Problem14_label48.c[4040,4053] [2021-08-29 04:54:34,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:54:34,977 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 04:54:35,007 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/Problem14_label48.c[4040,4053] [2021-08-29 04:54:35,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:54:35,077 INFO L208 MainTranslator]: Completed translation [2021-08-29 04:54:35,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35 WrapperNode [2021-08-29 04:54:35,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 04:54:35,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 04:54:35,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 04:54:35,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 04:54:35,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 04:54:35,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 04:54:35,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 04:54:35,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 04:54:35,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 04:54:35,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 04:54:35,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 04:54:35,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 04:54:35,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (1/1) ... [2021-08-29 04:54:35,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:54:35,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:35,314 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 04:54:35,337 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 04:54:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 04:54:35,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 04:54:35,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 04:54:35,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 04:54:35,875 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 04:54:35,875 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 04:54:35,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:35 BoogieIcfgContainer [2021-08-29 04:54:35,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 04:54:35,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 04:54:35,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 04:54:35,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 04:54:35,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:54:34" (1/3) ... [2021-08-29 04:54:35,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1088e44c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:54:35, skipping insertion in model container [2021-08-29 04:54:35,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:35" (2/3) ... [2021-08-29 04:54:35,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1088e44c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:54:35, skipping insertion in model container [2021-08-29 04:54:35,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:35" (3/3) ... [2021-08-29 04:54:35,885 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label48.c [2021-08-29 04:54:35,892 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 04:54:35,892 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 04:54:35,941 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 04:54:35,948 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 04:54:35,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 04:54:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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 04:54:35,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-08-29 04:54:35,981 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:35,981 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] [2021-08-29 04:54:35,982 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:35,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:35,988 INFO L82 PathProgramCache]: Analyzing trace with hash 323974986, now seen corresponding path program 1 times [2021-08-29 04:54:35,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:35,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357055435] [2021-08-29 04:54:35,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:35,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:36,256 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 04:54:36,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:36,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357055435] [2021-08-29 04:54:36,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357055435] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:36,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:36,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:36,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562456258] [2021-08-29 04:54:36,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:36,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:36,287 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 04:54:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:37,928 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2021-08-29 04:54:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:37,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2021-08-29 04:54:37,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:37,946 INFO L225 Difference]: With dead ends: 852 [2021-08-29 04:54:37,948 INFO L226 Difference]: Without dead ends: 538 [2021-08-29 04:54:37,952 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.17ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:37,955 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 556 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1175.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.17ms SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1524.35ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:37,956 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 0 Invalid, 1350 Unknown, 0 Unchecked, 10.17ms Time], IncrementalHoareTripleChecker [421 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 1524.35ms Time] [2021-08-29 04:54:37,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-08-29 04:54:38,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-08-29 04:54:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 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 04:54:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2021-08-29 04:54:38,027 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 38 [2021-08-29 04:54:38,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:38,027 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2021-08-29 04:54:38,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 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 04:54:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2021-08-29 04:54:38,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-08-29 04:54:38,035 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:38,035 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, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:54:38,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 04:54:38,036 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash -644661184, now seen corresponding path program 1 times [2021-08-29 04:54:38,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:38,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010540373] [2021-08-29 04:54:38,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:38,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:38,232 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-08-29 04:54:38,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:38,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010540373] [2021-08-29 04:54:38,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010540373] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:38,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:38,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:54:38,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124625690] [2021-08-29 04:54:38,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:38,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:38,237 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 04:54:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:38,846 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2021-08-29 04:54:38,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:38,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 186 [2021-08-29 04:54:38,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:38,850 INFO L225 Difference]: With dead ends: 1074 [2021-08-29 04:54:38,850 INFO L226 Difference]: Without dead ends: 716 [2021-08-29 04:54:38,851 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:38,852 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 467.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 584.72ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:38,853 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 689 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [201 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 584.72ms Time] [2021-08-29 04:54:38,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-08-29 04:54:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-08-29 04:54:38,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 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 04:54:38,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2021-08-29 04:54:38,873 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 186 [2021-08-29 04:54:38,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:38,873 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2021-08-29 04:54:38,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 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 04:54:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2021-08-29 04:54:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-08-29 04:54:38,881 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:38,881 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-29 04:54:38,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 04:54:38,882 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:38,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:38,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1687240179, now seen corresponding path program 1 times [2021-08-29 04:54:38,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:38,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871176478] [2021-08-29 04:54:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:38,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-29 04:54:39,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:39,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871176478] [2021-08-29 04:54:39,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871176478] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:39,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:39,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:39,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085972832] [2021-08-29 04:54:39,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:39,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:39,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:39,055 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:39,770 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2021-08-29 04:54:39,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:39,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-08-29 04:54:39,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:39,776 INFO L225 Difference]: With dead ends: 1637 [2021-08-29 04:54:39,776 INFO L226 Difference]: Without dead ends: 1072 [2021-08-29 04:54:39,777 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.43ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:39,778 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 112 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 544.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.99ms SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 684.66ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:39,779 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 0 Invalid, 907 Unknown, 0 Unchecked, 1.99ms Time], IncrementalHoareTripleChecker [148 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 684.66ms Time] [2021-08-29 04:54:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-08-29 04:54:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2021-08-29 04:54:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 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 04:54:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2021-08-29 04:54:39,802 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 209 [2021-08-29 04:54:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:39,803 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2021-08-29 04:54:39,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2021-08-29 04:54:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-08-29 04:54:39,808 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:39,809 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:39,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 04:54:39,809 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:39,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:39,810 INFO L82 PathProgramCache]: Analyzing trace with hash -525447176, now seen corresponding path program 1 times [2021-08-29 04:54:39,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:39,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183207292] [2021-08-29 04:54:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:39,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 171 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-08-29 04:54:40,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:40,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183207292] [2021-08-29 04:54:40,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183207292] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:40,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804076890] [2021-08-29 04:54:40,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:40,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:40,077 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 04:54:40,117 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 04:54:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:40,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:40,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-08-29 04:54:40,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:40,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804076890] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:40,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:40,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-29 04:54:40,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863401940] [2021-08-29 04:54:40,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:40,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:40,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:40,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:54:40,936 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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 04:54:41,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:41,532 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2021-08-29 04:54:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:41,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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 340 [2021-08-29 04:54:41,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:41,539 INFO L225 Difference]: With dead ends: 2320 [2021-08-29 04:54:41,539 INFO L226 Difference]: Without dead ends: 1606 [2021-08-29 04:54:41,540 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.26ms TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:54:41,541 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 143 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 455.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 567.99ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:41,541 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 0 Invalid, 784 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [79 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 567.99ms Time] [2021-08-29 04:54:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-08-29 04:54:41,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2021-08-29 04:54:41,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 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 04:54:41,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2021-08-29 04:54:41,565 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 340 [2021-08-29 04:54:41,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:41,566 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2021-08-29 04:54:41,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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 04:54:41,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2021-08-29 04:54:41,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-08-29 04:54:41,573 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:41,573 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:41,605 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 04:54:41,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:41,800 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:41,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1515675842, now seen corresponding path program 1 times [2021-08-29 04:54:41,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:41,801 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346191598] [2021-08-29 04:54:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:41,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:41,974 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 562 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-08-29 04:54:41,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:41,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346191598] [2021-08-29 04:54:41,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346191598] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:41,976 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:41,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:41,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787712752] [2021-08-29 04:54:41,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:41,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:41,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:41,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:41,978 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 04:54:42,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:42,563 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2021-08-29 04:54:42,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:42,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 439 [2021-08-29 04:54:42,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:42,570 INFO L225 Difference]: With dead ends: 3210 [2021-08-29 04:54:42,570 INFO L226 Difference]: Without dead ends: 1962 [2021-08-29 04:54:42,571 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:42,572 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 435.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 555.30ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:42,572 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 597 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [51 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 555.30ms Time] [2021-08-29 04:54:42,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-08-29 04:54:42,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-08-29 04:54:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 0 states have call successors, (0), 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 04:54:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2021-08-29 04:54:42,603 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 439 [2021-08-29 04:54:42,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:42,603 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2021-08-29 04:54:42,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 04:54:42,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2021-08-29 04:54:42,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-08-29 04:54:42,611 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:42,612 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 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 04:54:42,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 04:54:42,612 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:42,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:42,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1446360066, now seen corresponding path program 1 times [2021-08-29 04:54:42,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:42,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813358458] [2021-08-29 04:54:42,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:42,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-08-29 04:54:42,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:42,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813358458] [2021-08-29 04:54:42,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813358458] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:42,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:42,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:42,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177578491] [2021-08-29 04:54:42,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:42,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:42,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:42,781 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 04:54:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:43,483 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2021-08-29 04:54:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:43,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 463 [2021-08-29 04:54:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:43,492 INFO L225 Difference]: With dead ends: 3744 [2021-08-29 04:54:43,492 INFO L226 Difference]: Without dead ends: 2140 [2021-08-29 04:54:43,494 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.17ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:43,495 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 536.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.06ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 664.22ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:43,495 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 906 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [13 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 664.22ms Time] [2021-08-29 04:54:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-08-29 04:54:43,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-08-29 04:54:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 0 states have call successors, (0), 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 04:54:43,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2021-08-29 04:54:43,532 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 463 [2021-08-29 04:54:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:43,533 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2021-08-29 04:54:43,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 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 04:54:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2021-08-29 04:54:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2021-08-29 04:54:43,537 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:43,538 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:43,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 04:54:43,538 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:43,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:43,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1587713622, now seen corresponding path program 1 times [2021-08-29 04:54:43,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:43,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625820083] [2021-08-29 04:54:43,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:43,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:43,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 698 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2021-08-29 04:54:43,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:43,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625820083] [2021-08-29 04:54:43,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625820083] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:43,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:43,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:43,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19478782] [2021-08-29 04:54:43,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:43,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:43,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:43,743 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 04:54:44,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:44,286 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2021-08-29 04:54:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:44,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 519 [2021-08-29 04:54:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:44,294 INFO L225 Difference]: With dead ends: 4336 [2021-08-29 04:54:44,294 INFO L226 Difference]: Without dead ends: 2318 [2021-08-29 04:54:44,296 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.09ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:44,297 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 410.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 508.72ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:44,297 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 736 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [33 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 508.72ms Time] [2021-08-29 04:54:44,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2021-08-29 04:54:44,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2021-08-29 04:54:44,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 0 states have call successors, (0), 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 04:54:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2021-08-29 04:54:44,364 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 519 [2021-08-29 04:54:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:44,365 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2021-08-29 04:54:44,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 04:54:44,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2021-08-29 04:54:44,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-08-29 04:54:44,370 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:44,370 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:44,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 04:54:44,371 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:44,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:44,372 INFO L82 PathProgramCache]: Analyzing trace with hash -319638967, now seen corresponding path program 2 times [2021-08-29 04:54:44,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:44,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075011400] [2021-08-29 04:54:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:44,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 775 proven. 11 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:44,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:44,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075011400] [2021-08-29 04:54:44,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075011400] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:44,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890637193] [2021-08-29 04:54:44,566 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-29 04:54:44,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:44,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:44,569 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 04:54:44,570 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 04:54:44,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-29 04:54:44,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 04:54:44,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:54:44,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 786 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:46,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:46,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890637193] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:46,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:46,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-08-29 04:54:46,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134854716] [2021-08-29 04:54:46,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 04:54:46,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:46,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 04:54:46,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:54:46,682 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 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 04:54:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:47,449 INFO L93 Difference]: Finished difference Result 4841 states and 5308 transitions. [2021-08-29 04:54:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 04:54:47,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 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 545 [2021-08-29 04:54:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:47,459 INFO L225 Difference]: With dead ends: 4841 [2021-08-29 04:54:47,460 INFO L226 Difference]: Without dead ends: 2881 [2021-08-29 04:54:47,466 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 29.62ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:54:47,466 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 301 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 587.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.93ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 723.48ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:47,468 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 0 Invalid, 986 Unknown, 0 Unchecked, 2.93ms Time], IncrementalHoareTripleChecker [72 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 723.48ms Time] [2021-08-29 04:54:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-08-29 04:54:47,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2674. [2021-08-29 04:54:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0751964085297419) internal successors, (2874), 2673 states have internal predecessors, (2874), 0 states have call successors, (0), 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 04:54:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2874 transitions. [2021-08-29 04:54:47,515 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2874 transitions. Word has length 545 [2021-08-29 04:54:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:47,516 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2874 transitions. [2021-08-29 04:54:47,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 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 04:54:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2874 transitions. [2021-08-29 04:54:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-08-29 04:54:47,521 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:47,522 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:47,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:47,745 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,SelfDestructingSolverStorable7 [2021-08-29 04:54:47,745 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:47,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:47,746 INFO L82 PathProgramCache]: Analyzing trace with hash 245952814, now seen corresponding path program 1 times [2021-08-29 04:54:47,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:47,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046422635] [2021-08-29 04:54:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:47,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:47,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 788 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:47,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:47,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046422635] [2021-08-29 04:54:47,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046422635] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:47,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:47,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:47,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414389458] [2021-08-29 04:54:47,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:47,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:47,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:47,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:47,932 INFO L87 Difference]: Start difference. First operand 2674 states and 2874 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 04:54:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:48,446 INFO L93 Difference]: Finished difference Result 6058 states and 6580 transitions. [2021-08-29 04:54:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:48,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 552 [2021-08-29 04:54:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:48,458 INFO L225 Difference]: With dead ends: 6058 [2021-08-29 04:54:48,458 INFO L226 Difference]: Without dead ends: 3564 [2021-08-29 04:54:48,461 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:48,463 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 394.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.57ms SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 483.07ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:48,464 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 691 Unknown, 0 Unchecked, 1.57ms Time], IncrementalHoareTripleChecker [65 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 483.07ms Time] [2021-08-29 04:54:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-08-29 04:54:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2021-08-29 04:54:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0741506646971934) internal successors, (3636), 3385 states have internal predecessors, (3636), 0 states have call successors, (0), 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 04:54:48,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3636 transitions. [2021-08-29 04:54:48,525 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3636 transitions. Word has length 552 [2021-08-29 04:54:48,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:48,525 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3636 transitions. [2021-08-29 04:54:48,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 04:54:48,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3636 transitions. [2021-08-29 04:54:48,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2021-08-29 04:54:48,531 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:48,532 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:48,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 04:54:48,532 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:48,537 INFO L82 PathProgramCache]: Analyzing trace with hash -150190201, now seen corresponding path program 1 times [2021-08-29 04:54:48,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:48,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655336804] [2021-08-29 04:54:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:48,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 802 proven. 195 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-08-29 04:54:48,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:48,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655336804] [2021-08-29 04:54:48,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655336804] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:48,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453946161] [2021-08-29 04:54:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:48,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:48,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:48,757 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 04:54:48,759 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 04:54:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:48,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:54:48,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-08-29 04:54:51,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:51,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453946161] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:51,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:51,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-29 04:54:51,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021496633] [2021-08-29 04:54:51,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:51,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:51,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:51,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:54:51,883 INFO L87 Difference]: Start difference. First operand 3386 states and 3636 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 04:54:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:52,357 INFO L93 Difference]: Finished difference Result 6857 states and 7366 transitions. [2021-08-29 04:54:52,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:52,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 597 [2021-08-29 04:54:52,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:52,370 INFO L225 Difference]: With dead ends: 6857 [2021-08-29 04:54:52,370 INFO L226 Difference]: Without dead ends: 3651 [2021-08-29 04:54:52,373 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 601 GetRequests, 595 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.61ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:54:52,374 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 125 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.19ms SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 442.63ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:52,375 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 0 Invalid, 574 Unknown, 0 Unchecked, 1.19ms Time], IncrementalHoareTripleChecker [107 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 442.63ms Time] [2021-08-29 04:54:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2021-08-29 04:54:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 3386. [2021-08-29 04:54:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0688330871491876) internal successors, (3618), 3385 states have internal predecessors, (3618), 0 states have call successors, (0), 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 04:54:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3618 transitions. [2021-08-29 04:54:52,438 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3618 transitions. Word has length 597 [2021-08-29 04:54:52,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:52,439 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3618 transitions. [2021-08-29 04:54:52,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 04:54:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3618 transitions. [2021-08-29 04:54:52,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2021-08-29 04:54:52,445 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:52,446 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:52,470 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 04:54:52,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:52,661 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:52,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:52,661 INFO L82 PathProgramCache]: Analyzing trace with hash -166196995, now seen corresponding path program 1 times [2021-08-29 04:54:52,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:52,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037331756] [2021-08-29 04:54:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:52,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:52,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 700 proven. 93 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:52,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:52,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037331756] [2021-08-29 04:54:52,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037331756] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:52,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522275396] [2021-08-29 04:54:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:52,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:52,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:52,905 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 04:54:52,907 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 04:54:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:53,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:53,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 793 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:53,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:53,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522275396] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:53,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:53,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:54:53,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489756566] [2021-08-29 04:54:53,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:53,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:53,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:53,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:53,985 INFO L87 Difference]: Start difference. First operand 3386 states and 3618 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 04:54:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:54,400 INFO L93 Difference]: Finished difference Result 7838 states and 8445 transitions. [2021-08-29 04:54:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:54,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 619 [2021-08-29 04:54:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:54,415 INFO L225 Difference]: With dead ends: 7838 [2021-08-29 04:54:54,415 INFO L226 Difference]: Without dead ends: 4632 [2021-08-29 04:54:54,419 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 14.41ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:54,420 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 309.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 387.94ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:54,420 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 532 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 387.94ms Time] [2021-08-29 04:54:54,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-08-29 04:54:54,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4632. [2021-08-29 04:54:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.0632692722954005) internal successors, (4924), 4631 states have internal predecessors, (4924), 0 states have call successors, (0), 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 04:54:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4924 transitions. [2021-08-29 04:54:54,496 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4924 transitions. Word has length 619 [2021-08-29 04:54:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:54,497 INFO L470 AbstractCegarLoop]: Abstraction has 4632 states and 4924 transitions. [2021-08-29 04:54:54,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 04:54:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4924 transitions. [2021-08-29 04:54:54,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2021-08-29 04:54:54,505 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:54,505 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, 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, 4, 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, 1, 1] [2021-08-29 04:54:54,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:54,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:54,733 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:54,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1384462902, now seen corresponding path program 1 times [2021-08-29 04:54:54,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:54,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167377861] [2021-08-29 04:54:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:54,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:54,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1234 proven. 155 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:54,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:54,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167377861] [2021-08-29 04:54:54,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167377861] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:54,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671996267] [2021-08-29 04:54:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:54,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:54,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:54,955 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 04:54:54,983 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 04:54:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:55,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 04:54:55,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1234 proven. 155 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:56,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 04:54:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 1234 proven. 155 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-08-29 04:54:57,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671996267] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 04:54:57,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 04:54:57,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-08-29 04:54:57,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230826984] [2021-08-29 04:54:57,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 04:54:57,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:57,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 04:54:57,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:57,485 INFO L87 Difference]: Start difference. First operand 4632 states and 4924 transitions. Second operand has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 04:54:58,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:58,400 INFO L93 Difference]: Finished difference Result 10508 states and 11209 transitions. [2021-08-29 04:54:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 04:54:58,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 774 [2021-08-29 04:54:58,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:58,418 INFO L225 Difference]: With dead ends: 10508 [2021-08-29 04:54:58,419 INFO L226 Difference]: Without dead ends: 6056 [2021-08-29 04:54:58,424 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1550 GetRequests, 1546 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 10.09ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:58,425 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 48 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 666.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 853.59ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:58,425 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 0 Invalid, 1189 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [70 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 853.59ms Time] [2021-08-29 04:54:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-08-29 04:54:58,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5344. [2021-08-29 04:54:58,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.064008983717013) internal successors, (5685), 5343 states have internal predecessors, (5685), 0 states have call successors, (0), 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 04:54:58,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5685 transitions. [2021-08-29 04:54:58,510 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5685 transitions. Word has length 774 [2021-08-29 04:54:58,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:58,512 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5685 transitions. [2021-08-29 04:54:58,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 states have internal predecessors, (862), 0 states have call successors, (0), 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 04:54:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5685 transitions. [2021-08-29 04:54:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2021-08-29 04:54:58,520 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:58,521 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-29 04:54:58,546 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 04:54:58,736 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,SelfDestructingSolverStorable11 [2021-08-29 04:54:58,736 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:58,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:58,737 INFO L82 PathProgramCache]: Analyzing trace with hash -703064065, now seen corresponding path program 1 times [2021-08-29 04:54:58,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:58,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057940758] [2021-08-29 04:54:58,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:58,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2210 backedges. 1665 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2021-08-29 04:54:58,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:58,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057940758] [2021-08-29 04:54:58,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057940758] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:58,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:58,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:58,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442323803] [2021-08-29 04:54:58,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:58,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:58,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:58,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:58,975 INFO L87 Difference]: Start difference. First operand 5344 states and 5685 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 04:54:59,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:59,433 INFO L93 Difference]: Finished difference Result 10508 states and 11189 transitions. [2021-08-29 04:54:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:59,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 825 [2021-08-29 04:54:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:59,443 INFO L225 Difference]: With dead ends: 10508 [2021-08-29 04:54:59,443 INFO L226 Difference]: Without dead ends: 5344 [2021-08-29 04:54:59,448 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:59,449 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 344.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 430.23ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:59,449 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 0 Invalid, 679 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [21 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 430.23ms Time] [2021-08-29 04:54:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-08-29 04:54:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2021-08-29 04:54:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0615600561459795) internal successors, (5294), 4987 states have internal predecessors, (5294), 0 states have call successors, (0), 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 04:54:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5294 transitions. [2021-08-29 04:54:59,519 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5294 transitions. Word has length 825 [2021-08-29 04:54:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:59,520 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5294 transitions. [2021-08-29 04:54:59,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 04:54:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5294 transitions. [2021-08-29 04:54:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2021-08-29 04:54:59,528 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:59,528 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1] [2021-08-29 04:54:59,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-29 04:54:59,529 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:59,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1452861494, now seen corresponding path program 1 times [2021-08-29 04:54:59,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:59,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520720105] [2021-08-29 04:54:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:59,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2206 backedges. 1415 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2021-08-29 04:54:59,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:59,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520720105] [2021-08-29 04:54:59,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520720105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:59,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:59,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:59,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341402486] [2021-08-29 04:54:59,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:59,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:59,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:59,753 INFO L87 Difference]: Start difference. First operand 4988 states and 5294 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 04:55:00,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:00,188 INFO L93 Difference]: Finished difference Result 10864 states and 11626 transitions. [2021-08-29 04:55:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:00,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 846 [2021-08-29 04:55:00,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:00,199 INFO L225 Difference]: With dead ends: 10864 [2021-08-29 04:55:00,200 INFO L226 Difference]: Without dead ends: 6056 [2021-08-29 04:55:00,204 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:00,205 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 108 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 308.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.66ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 402.34ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:00,205 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 0 Invalid, 518 Unknown, 0 Unchecked, 0.66ms Time], IncrementalHoareTripleChecker [64 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 402.34ms Time] [2021-08-29 04:55:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2021-08-29 04:55:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2021-08-29 04:55:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.066226259289843) internal successors, (6456), 6055 states have internal predecessors, (6456), 0 states have call successors, (0), 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 04:55:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6456 transitions. [2021-08-29 04:55:00,279 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6456 transitions. Word has length 846 [2021-08-29 04:55:00,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:00,280 INFO L470 AbstractCegarLoop]: Abstraction has 6056 states and 6456 transitions. [2021-08-29 04:55:00,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 04:55:00,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6456 transitions. [2021-08-29 04:55:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2021-08-29 04:55:00,288 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:00,289 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:55:00,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 04:55:00,289 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1223574979, now seen corresponding path program 1 times [2021-08-29 04:55:00,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:00,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064063835] [2021-08-29 04:55:00,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:00,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 1483 proven. 93 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-08-29 04:55:00,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:00,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064063835] [2021-08-29 04:55:00,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064063835] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:55:00,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528677518] [2021-08-29 04:55:00,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:00,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:55:00,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:55:00,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:55:00,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-29 04:55:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:00,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 04:55:00,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:55:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2224 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-08-29 04:55:02,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:55:02,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528677518] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:02,371 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:55:02,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:55:02,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403262307] [2021-08-29 04:55:02,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:55:02,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:02,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:55:02,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:55:02,373 INFO L87 Difference]: Start difference. First operand 6056 states and 6456 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 04:55:02,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:02,767 INFO L93 Difference]: Finished difference Result 12466 states and 13279 transitions. [2021-08-29 04:55:02,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:02,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 864 [2021-08-29 04:55:02,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:02,778 INFO L225 Difference]: With dead ends: 12466 [2021-08-29 04:55:02,779 INFO L226 Difference]: Without dead ends: 6590 [2021-08-29 04:55:02,785 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 863 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.07ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:55:02,785 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 283.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 359.00ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:02,786 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 498 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [12 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 359.00ms Time] [2021-08-29 04:55:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2021-08-29 04:55:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6056. [2021-08-29 04:55:02,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.066226259289843) internal successors, (6456), 6055 states have internal predecessors, (6456), 0 states have call successors, (0), 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 04:55:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6456 transitions. [2021-08-29 04:55:02,858 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6456 transitions. Word has length 864 [2021-08-29 04:55:02,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:02,860 INFO L470 AbstractCegarLoop]: Abstraction has 6056 states and 6456 transitions. [2021-08-29 04:55:02,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 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 04:55:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6456 transitions. [2021-08-29 04:55:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 933 [2021-08-29 04:55:02,869 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:02,870 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:55:02,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-29 04:55:03,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-29 04:55:03,093 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:03,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:03,094 INFO L82 PathProgramCache]: Analyzing trace with hash -149204083, now seen corresponding path program 1 times [2021-08-29 04:55:03,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:03,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780129684] [2021-08-29 04:55:03,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:03,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2493 backedges. 1702 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2021-08-29 04:55:03,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:03,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780129684] [2021-08-29 04:55:03,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780129684] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:03,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:03,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:55:03,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591947081] [2021-08-29 04:55:03,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:55:03,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:55:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:03,390 INFO L87 Difference]: Start difference. First operand 6056 states and 6456 transitions. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 04:55:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:03,829 INFO L93 Difference]: Finished difference Result 11754 states and 12551 transitions. [2021-08-29 04:55:03,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:03,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 932 [2021-08-29 04:55:03,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:03,839 INFO L225 Difference]: With dead ends: 11754 [2021-08-29 04:55:03,839 INFO L226 Difference]: Without dead ends: 5878 [2021-08-29 04:55:03,845 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:03,846 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 329.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.10ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:03,846 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 681 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [31 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 408.10ms Time] [2021-08-29 04:55:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2021-08-29 04:55:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2021-08-29 04:55:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.059384039475923) internal successors, (6226), 5877 states have internal predecessors, (6226), 0 states have call successors, (0), 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 04:55:03,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6226 transitions. [2021-08-29 04:55:03,911 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6226 transitions. Word has length 932 [2021-08-29 04:55:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:03,912 INFO L470 AbstractCegarLoop]: Abstraction has 5878 states and 6226 transitions. [2021-08-29 04:55:03,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 04:55:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6226 transitions. [2021-08-29 04:55:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 942 [2021-08-29 04:55:03,921 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:03,922 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:55:03,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 04:55:03,923 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:03,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:03,923 INFO L82 PathProgramCache]: Analyzing trace with hash 377118381, now seen corresponding path program 1 times [2021-08-29 04:55:03,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:03,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021451921] [2021-08-29 04:55:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:03,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2793 backedges. 1777 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-08-29 04:55:04,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:04,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021451921] [2021-08-29 04:55:04,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021451921] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:55:04,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613097966] [2021-08-29 04:55:04,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:04,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:55:04,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:55:04,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:55:04,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-29 04:55:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:04,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:55:04,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:55:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2793 backedges. 1490 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2021-08-29 04:55:06,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:55:06,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613097966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:06,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:55:06,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-08-29 04:55:06,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490705971] [2021-08-29 04:55:06,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:55:06,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:06,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:55:06,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:55:06,015 INFO L87 Difference]: Start difference. First operand 5878 states and 6226 transitions. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 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 04:55:06,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:06,688 INFO L93 Difference]: Finished difference Result 13000 states and 13773 transitions. [2021-08-29 04:55:06,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:55:06,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 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 941 [2021-08-29 04:55:06,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:06,700 INFO L225 Difference]: With dead ends: 13000 [2021-08-29 04:55:06,701 INFO L226 Difference]: Without dead ends: 7302 [2021-08-29 04:55:06,707 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 945 GetRequests, 940 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 41.33ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:55:06,708 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 109 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 500.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 625.32ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:06,708 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 0 Invalid, 958 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [63 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 625.32ms Time] [2021-08-29 04:55:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2021-08-29 04:55:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 6590. [2021-08-29 04:55:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0576718773713765) internal successors, (6969), 6589 states have internal predecessors, (6969), 0 states have call successors, (0), 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 04:55:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6969 transitions. [2021-08-29 04:55:06,793 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6969 transitions. Word has length 941 [2021-08-29 04:55:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:06,794 INFO L470 AbstractCegarLoop]: Abstraction has 6590 states and 6969 transitions. [2021-08-29 04:55:06,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 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 04:55:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6969 transitions. [2021-08-29 04:55:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2021-08-29 04:55:06,804 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:06,805 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-29 04:55:06,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-29 04:55:07,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:55:07,029 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:07,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:07,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1123634884, now seen corresponding path program 1 times [2021-08-29 04:55:07,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:07,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957529275] [2021-08-29 04:55:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:07,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3088 backedges. 1990 proven. 0 refuted. 0 times theorem prover too weak. 1098 trivial. 0 not checked. [2021-08-29 04:55:07,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:07,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957529275] [2021-08-29 04:55:07,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957529275] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:07,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:07,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:55:07,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232820582] [2021-08-29 04:55:07,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:55:07,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:07,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:55:07,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:07,388 INFO L87 Difference]: Start difference. First operand 6590 states and 6969 transitions. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 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 04:55:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:07,843 INFO L93 Difference]: Finished difference Result 13178 states and 13941 transitions. [2021-08-29 04:55:07,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 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 1027 [2021-08-29 04:55:07,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:07,852 INFO L225 Difference]: With dead ends: 13178 [2021-08-29 04:55:07,852 INFO L226 Difference]: Without dead ends: 6768 [2021-08-29 04:55:07,858 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:07,859 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 335.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.74ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 418.23ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:07,859 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 692 Unknown, 0 Unchecked, 0.74ms Time], IncrementalHoareTripleChecker [37 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 418.23ms Time] [2021-08-29 04:55:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2021-08-29 04:55:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6412. [2021-08-29 04:55:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0545936671346123) internal successors, (6761), 6411 states have internal predecessors, (6761), 0 states have call successors, (0), 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 04:55:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6761 transitions. [2021-08-29 04:55:07,938 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6761 transitions. Word has length 1027 [2021-08-29 04:55:07,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:07,939 INFO L470 AbstractCegarLoop]: Abstraction has 6412 states and 6761 transitions. [2021-08-29 04:55:07,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 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 04:55:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6761 transitions. [2021-08-29 04:55:07,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2021-08-29 04:55:07,949 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:07,950 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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 04:55:07,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 04:55:07,950 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:07,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:07,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1328529225, now seen corresponding path program 1 times [2021-08-29 04:55:07,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:07,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961195485] [2021-08-29 04:55:07,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:07,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3416 backedges. 1629 proven. 0 refuted. 0 times theorem prover too weak. 1787 trivial. 0 not checked. [2021-08-29 04:55:08,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:08,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961195485] [2021-08-29 04:55:08,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961195485] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:08,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:08,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:55:08,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274929196] [2021-08-29 04:55:08,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:55:08,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:08,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:55:08,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:08,313 INFO L87 Difference]: Start difference. First operand 6412 states and 6761 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 04:55:08,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:08,844 INFO L93 Difference]: Finished difference Result 12822 states and 13520 transitions. [2021-08-29 04:55:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:08,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 1101 [2021-08-29 04:55:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:08,853 INFO L225 Difference]: With dead ends: 12822 [2021-08-29 04:55:08,854 INFO L226 Difference]: Without dead ends: 6590 [2021-08-29 04:55:08,860 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:55:08,860 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 388.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.20ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 480.95ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:08,861 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 702 Unknown, 0 Unchecked, 1.20ms Time], IncrementalHoareTripleChecker [43 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 480.95ms Time] [2021-08-29 04:55:08,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2021-08-29 04:55:08,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6234. [2021-08-29 04:55:08,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6234 states, 6233 states have (on average 1.0421947697737848) internal successors, (6496), 6233 states have internal predecessors, (6496), 0 states have call successors, (0), 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 04:55:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6234 states to 6234 states and 6496 transitions. [2021-08-29 04:55:08,930 INFO L78 Accepts]: Start accepts. Automaton has 6234 states and 6496 transitions. Word has length 1101 [2021-08-29 04:55:08,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:08,931 INFO L470 AbstractCegarLoop]: Abstraction has 6234 states and 6496 transitions. [2021-08-29 04:55:08,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 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 04:55:08,931 INFO L276 IsEmpty]: Start isEmpty. Operand 6234 states and 6496 transitions. [2021-08-29 04:55:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2021-08-29 04:55:08,951 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:08,951 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:55:08,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 04:55:08,952 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:08,952 INFO L82 PathProgramCache]: Analyzing trace with hash 292188241, now seen corresponding path program 1 times [2021-08-29 04:55:08,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:08,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408123300] [2021-08-29 04:55:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:08,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 8364 backedges. 1706 proven. 1045 refuted. 0 times theorem prover too weak. 5613 trivial. 0 not checked. [2021-08-29 04:55:09,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:09,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408123300] [2021-08-29 04:55:09,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408123300] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:55:09,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890244239] [2021-08-29 04:55:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:09,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:55:09,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:55:09,573 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:55:09,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-29 04:55:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:09,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:55:09,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:55:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 8364 backedges. 2751 proven. 0 refuted. 0 times theorem prover too weak. 5613 trivial. 0 not checked. [2021-08-29 04:55:12,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:55:12,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890244239] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:12,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:55:12,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:55:12,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515683982] [2021-08-29 04:55:12,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:55:12,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:12,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:55:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:55:12,275 INFO L87 Difference]: Start difference. First operand 6234 states and 6496 transitions. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 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 04:55:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:12,725 INFO L93 Difference]: Finished difference Result 13356 states and 13888 transitions. [2021-08-29 04:55:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:55:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 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 1651 [2021-08-29 04:55:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:12,729 INFO L225 Difference]: With dead ends: 13356 [2021-08-29 04:55:12,729 INFO L226 Difference]: Without dead ends: 4098 [2021-08-29 04:55:12,734 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1654 GetRequests, 1650 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.85ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:55:12,734 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 320.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 412.96ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:12,734 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 678 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [49 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 412.96ms Time] [2021-08-29 04:55:12,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2021-08-29 04:55:12,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2021-08-29 04:55:12,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0226995362460336) internal successors, (4190), 4097 states have internal predecessors, (4190), 0 states have call successors, (0), 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 04:55:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4190 transitions. [2021-08-29 04:55:12,763 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4190 transitions. Word has length 1651 [2021-08-29 04:55:12,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:12,765 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4190 transitions. [2021-08-29 04:55:12,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 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 04:55:12,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4190 transitions. [2021-08-29 04:55:12,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1723 [2021-08-29 04:55:12,783 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:12,783 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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 04:55:12,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-29 04:55:12,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:55:12,997 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:12,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1151917844, now seen corresponding path program 1 times [2021-08-29 04:55:12,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:12,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368279058] [2021-08-29 04:55:12,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:12,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9629 backedges. 1553 proven. 0 refuted. 0 times theorem prover too weak. 8076 trivial. 0 not checked. [2021-08-29 04:55:13,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:13,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368279058] [2021-08-29 04:55:13,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368279058] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:13,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:13,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:55:13,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380249831] [2021-08-29 04:55:13,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 04:55:13,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 04:55:13,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:55:13,707 INFO L87 Difference]: Start difference. First operand 4098 states and 4190 transitions. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 04:55:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:14,274 INFO L93 Difference]: Finished difference Result 5537 states and 5682 transitions. [2021-08-29 04:55:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 04:55:14,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 1722 [2021-08-29 04:55:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:14,278 INFO L225 Difference]: With dead ends: 5537 [2021-08-29 04:55:14,278 INFO L226 Difference]: Without dead ends: 5344 [2021-08-29 04:55:14,279 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.15ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:55:14,280 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 438.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.28ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 542.13ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:14,280 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 826 Unknown, 0 Unchecked, 1.28ms Time], IncrementalHoareTripleChecker [32 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 542.13ms Time] [2021-08-29 04:55:14,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-08-29 04:55:14,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4810. [2021-08-29 04:55:14,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0266167602412144) internal successors, (4937), 4809 states have internal predecessors, (4937), 0 states have call successors, (0), 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 04:55:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4937 transitions. [2021-08-29 04:55:14,328 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4937 transitions. Word has length 1722 [2021-08-29 04:55:14,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:14,328 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4937 transitions. [2021-08-29 04:55:14,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 04:55:14,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4937 transitions. [2021-08-29 04:55:14,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1728 [2021-08-29 04:55:14,344 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:14,344 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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 04:55:14,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-29 04:55:14,345 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:14,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:14,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1097919814, now seen corresponding path program 1 times [2021-08-29 04:55:14,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:14,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913107989] [2021-08-29 04:55:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:14,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9684 backedges. 503 proven. 0 refuted. 0 times theorem prover too weak. 9181 trivial. 0 not checked. [2021-08-29 04:55:15,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:15,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913107989] [2021-08-29 04:55:15,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913107989] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:15,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:15,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:55:15,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90796638] [2021-08-29 04:55:15,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:55:15,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:15,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:55:15,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:55:15,064 INFO L87 Difference]: Start difference. First operand 4810 states and 4937 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 04:55:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:15,461 INFO L93 Difference]: Finished difference Result 5002 states and 5129 transitions. [2021-08-29 04:55:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:55:15,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 1727 [2021-08-29 04:55:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:15,466 INFO L225 Difference]: With dead ends: 5002 [2021-08-29 04:55:15,466 INFO L226 Difference]: Without dead ends: 4810 [2021-08-29 04:55:15,467 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.30ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:55:15,467 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 280.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 347.96ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:15,468 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 610 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [4 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 347.96ms Time] [2021-08-29 04:55:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-08-29 04:55:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2021-08-29 04:55:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0253690996049074) internal successors, (4931), 4809 states have internal predecessors, (4931), 0 states have call successors, (0), 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 04:55:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4931 transitions. [2021-08-29 04:55:15,507 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4931 transitions. Word has length 1727 [2021-08-29 04:55:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:15,508 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4931 transitions. [2021-08-29 04:55:15,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 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 04:55:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4931 transitions. [2021-08-29 04:55:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2025 [2021-08-29 04:55:15,533 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:55:15,533 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 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 04:55:15,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-29 04:55:15,534 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:55:15,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:55:15,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1727252823, now seen corresponding path program 1 times [2021-08-29 04:55:15,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:55:15,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260759600] [2021-08-29 04:55:15,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:55:15,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:55:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:55:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 13033 backedges. 1789 proven. 0 refuted. 0 times theorem prover too weak. 11244 trivial. 0 not checked. [2021-08-29 04:55:16,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:55:16,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260759600] [2021-08-29 04:55:16,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260759600] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:55:16,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:55:16,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:55:16,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356845223] [2021-08-29 04:55:16,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:55:16,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:55:16,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:55:16,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:55:16,395 INFO L87 Difference]: Start difference. First operand 4810 states and 4931 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 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 04:55:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:55:16,820 INFO L93 Difference]: Finished difference Result 4823 states and 4944 transitions. [2021-08-29 04:55:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:55:16,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 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 2024 [2021-08-29 04:55:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:55:16,822 INFO L225 Difference]: With dead ends: 4823 [2021-08-29 04:55:16,822 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 04:55:16,824 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.19ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:55:16,825 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 108 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 338.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 408.27ms IncrementalHoareTripleChecker+Time [2021-08-29 04:55:16,825 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 0 Invalid, 618 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [16 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 408.27ms Time] [2021-08-29 04:55:16,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 04:55:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 04:55:16,826 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 04:55:16,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 04:55:16,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2024 [2021-08-29 04:55:16,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:55:16,827 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 04:55:16,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 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 04:55:16,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 04:55:16,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 04:55:16,829 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 04:55:16,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 04:55:16,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 04:55:16,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:55:16,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:55:16,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:55:17,881 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,882 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-08-29 04:55:17,883 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-08-29 04:55:17,884 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-08-29 04:55:17,885 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-08-29 04:55:17,886 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,887 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-08-29 04:55:17,888 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-08-29 04:55:17,889 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,890 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,891 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 128) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-08-29 04:55:17,892 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-08-29 04:55:17,893 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,894 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-08-29 04:55:17,895 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-08-29 04:55:17,896 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-29 04:55:17,897 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-08-29 04:55:17,898 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,899 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-08-29 04:55:17,900 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse9 (+ ~a12~0 43))) (let ((.cse3 (<= 9 ~a21~0)) (.cse1 (not (= 7 ~a15~0))) (.cse2 (<= ~a12~0 599999)) (.cse4 (<= ~a15~0 8)) (.cse5 (<= (+ 49 ~a12~0) 0)) (.cse6 (<= ~a15~0 7)) (.cse0 (= ~a24~0 1)) (.cse8 (<= ~a21~0 8)) (.cse7 (< 0 .cse9))) (or (and .cse0 .cse1 (<= 10 ~a21~0) .cse2) (and .cse3 .cse0 .cse4 .cse5) (and .cse0 .cse6 .cse1) (and (<= ~a21~0 9) .cse0 .cse6 .cse7) (and .cse0 .cse6 .cse8) (and .cse0 (<= 7 ~a21~0) .cse8 .cse2 .cse7) (and (<= ~a21~0 6) .cse6 .cse5) (and .cse0 (<= 8 ~a21~0) .cse8 .cse2) (and .cse3 (<= .cse9 0) .cse0 .cse4 .cse1) (and .cse3 .cse0 .cse1 .cse2 .cse7) (and .cse0 (= 7 ~a21~0) .cse4 .cse5) (and .cse0 (< 80 ~a12~0) .cse6 (= ~a21~0 10)) (and .cse0 .cse8 .cse7 (<= ~a12~0 586307))))) [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-08-29 04:55:17,901 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-08-29 04:55:17,902 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,903 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,904 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse9 (+ ~a12~0 43))) (let ((.cse3 (<= 9 ~a21~0)) (.cse1 (not (= 7 ~a15~0))) (.cse2 (<= ~a12~0 599999)) (.cse4 (<= ~a15~0 8)) (.cse5 (<= (+ 49 ~a12~0) 0)) (.cse6 (<= ~a15~0 7)) (.cse0 (= ~a24~0 1)) (.cse8 (<= ~a21~0 8)) (.cse7 (< 0 .cse9))) (or (and .cse0 .cse1 (<= 10 ~a21~0) .cse2) (and .cse3 .cse0 .cse4 .cse5) (and .cse0 .cse6 .cse1) (and (<= ~a21~0 9) .cse0 .cse6 .cse7) (and .cse0 .cse6 .cse8) (and .cse0 (<= 7 ~a21~0) .cse8 .cse2 .cse7) (and (<= ~a21~0 6) .cse6 .cse5) (and .cse0 (<= 8 ~a21~0) .cse8 .cse2) (and .cse3 (<= .cse9 0) .cse0 .cse4 .cse1) (and .cse3 .cse0 .cse1 .cse2 .cse7) (and .cse0 (= 7 ~a21~0) .cse4 .cse5) (and .cse0 (< 80 ~a12~0) .cse6 (= ~a21~0 10)) (and .cse0 .cse8 .cse7 (<= ~a12~0 586307))))) [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-08-29 04:55:17,905 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:55:17,906 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-08-29 04:55:17,907 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-29 04:55:17,907 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-29 04:55:17,907 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-29 04:55:17,911 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 04:55:17,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:55:17 BoogieIcfgContainer [2021-08-29 04:55:17,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 04:55:17,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 04:55:17,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 04:55:17,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 04:55:17,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:35" (3/4) ... [2021-08-29 04:55:17,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 04:55:17,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 04:55:17,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 04:55:17,955 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:55:17,956 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:55:18,061 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 04:55:18,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 04:55:18,062 INFO L158 Benchmark]: Toolchain (without parser) took 43586.10ms. Allocated memory was 77.6MB in the beginning and 608.2MB in the end (delta: 530.6MB). Free memory was 56.9MB in the beginning and 215.3MB in the end (delta: -158.3MB). Peak memory consumption was 372.7MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,063 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 04:55:18,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.09ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 39.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.85ms. Allocated memory is still 77.6MB. Free memory was 39.4MB in the beginning and 51.8MB in the end (delta: -12.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,063 INFO L158 Benchmark]: Boogie Preprocessor took 92.70ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 45.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,064 INFO L158 Benchmark]: RCFGBuilder took 596.36ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 45.8MB in the beginning and 66.6MB in the end (delta: -20.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,064 INFO L158 Benchmark]: TraceAbstraction took 42046.74ms. Allocated memory was 100.7MB in the beginning and 608.2MB in the end (delta: 507.5MB). Free memory was 66.0MB in the beginning and 234.2MB in the end (delta: -168.1MB). Peak memory consumption was 338.9MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,064 INFO L158 Benchmark]: Witness Printer took 135.29ms. Allocated memory is still 608.2MB. Free memory was 234.2MB in the beginning and 215.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-08-29 04:55:18,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.09ms. Allocated memory is still 77.6MB. Free memory was 56.7MB in the beginning and 39.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.85ms. Allocated memory is still 77.6MB. Free memory was 39.4MB in the beginning and 51.8MB in the end (delta: -12.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.70ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 45.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 596.36ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 45.8MB in the beginning and 66.6MB in the end (delta: -20.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 42046.74ms. Allocated memory was 100.7MB in the beginning and 608.2MB in the end (delta: 507.5MB). Free memory was 66.0MB in the beginning and 234.2MB in the end (delta: -168.1MB). Peak memory consumption was 338.9MB. Max. memory is 16.1GB. * Witness Printer took 135.29ms. Allocated memory is still 608.2MB. Free memory was 234.2MB in the beginning and 215.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. 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: 128]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41971.45ms, OverallIterations: 23, TraceHistogramMax: 17, EmptinessCheckTime: 214.72ms, AutomataDifference: 14093.92ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 1051.16ms, InitialAbstractionConstructionTime: 17.54ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2389 SdHoareTripleChecker+Valid, 12816.13ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2389 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 10191.30ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 1683 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15718 IncrementalHoareTripleChecker+Invalid, 17401 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1683 mSolverCounterUnsat, 0 mSDtfsCounter, 15718 mSolverCounterSat, 37.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7178 GetRequests, 7116 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 291.53ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6590occurred in iteration=17, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 1213.70ms AutomataMinimizationTime, 23 MinimizatonAttempts, 4922 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 106 NumberOfFragments, 381 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7398 FormulaSimplificationTreeSizeReduction, 186.91ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 3994 FormulaSimplificationTreeSizeReductionInter, 856.11ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 706.23ms SsaConstructionTime, 2318.95ms SatisfiabilityAnalysisTime, 19971.92ms InterpolantComputationTime, 25272 NumberOfCodeBlocks, 25272 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 26014 ConstructedInterpolants, 0 QuantifiedInterpolants, 74130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8060 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 32 InterpolantComputations, 22 PerfectInterpolantSequences, 87141/89245 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: 30]: Loop Invariant Derived loop invariant: ((((((((((((((a24 == 1 && !(7 == a15)) && 10 <= a21) && a12 <= 599999) || (((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0)) || ((a24 == 1 && a15 <= 7) && !(7 == a15))) || (((a21 <= 9 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 7) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 8) && a12 <= 599999) && 0 < a12 + 43)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 <= 599999)) || ((((9 <= a21 && a12 + 43 <= 0) && a24 == 1) && a15 <= 8) && !(7 == a15))) || ((((9 <= a21 && a24 == 1) && !(7 == a15)) && a12 <= 599999) && 0 < a12 + 43)) || (((a24 == 1 && 7 == a21) && a15 <= 8) && 49 + a12 <= 0)) || (((a24 == 1 && 80 < a12) && a15 <= 7) && a21 == 10)) || (((a24 == 1 && a21 <= 8) && 0 < a12 + 43) && a12 <= 586307) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((a24 == 1 && !(7 == a15)) && 10 <= a21) && a12 <= 599999) || (((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0)) || ((a24 == 1 && a15 <= 7) && !(7 == a15))) || (((a21 <= 9 && a24 == 1) && a15 <= 7) && 0 < a12 + 43)) || ((a24 == 1 && a15 <= 7) && a21 <= 8)) || ((((a24 == 1 && 7 <= a21) && a21 <= 8) && a12 <= 599999) && 0 < a12 + 43)) || ((a21 <= 6 && a15 <= 7) && 49 + a12 <= 0)) || (((a24 == 1 && 8 <= a21) && a21 <= 8) && a12 <= 599999)) || ((((9 <= a21 && a12 + 43 <= 0) && a24 == 1) && a15 <= 8) && !(7 == a15))) || ((((9 <= a21 && a24 == 1) && !(7 == a15)) && a12 <= 599999) && 0 < a12 + 43)) || (((a24 == 1 && 7 == a21) && a15 <= 8) && 49 + a12 <= 0)) || (((a24 == 1 && 80 < a12) && a15 <= 7) && a21 == 10)) || (((a24 == 1 && a21 <= 8) && 0 < a12 + 43) && a12 <= 586307) RESULT: Ultimate proved your program to be correct! [2021-08-29 04:55:18,097 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...