./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label53.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label53.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 f2824624fed4ccbdafc00f63c200acab83727308 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:35:51,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 04:35:51,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 04:35:51,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 04:35:51,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 04:35:51,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 04:35:51,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 04:35:51,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 04:35:51,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 04:35:51,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 04:35:51,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 04:35:51,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 04:35:51,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 04:35:51,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 04:35:51,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 04:35:51,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 04:35:51,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 04:35:51,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 04:35:51,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 04:35:51,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 04:35:51,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 04:35:51,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 04:35:51,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 04:35:51,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 04:35:51,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 04:35:51,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 04:35:51,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 04:35:51,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 04:35:51,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 04:35:51,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 04:35:51,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 04:35:51,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 04:35:51,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 04:35:51,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 04:35:51,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 04:35:51,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 04:35:51,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 04:35:51,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 04:35:51,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 04:35:51,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 04:35:51,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 04:35:51,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 04:35:51,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 04:35:51,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 04:35:51,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 04:35:51,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 04:35:51,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 04:35:51,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 04:35:51,732 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 04:35:51,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 04:35:51,732 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 04:35:51,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 04:35:51,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 04:35:51,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 04:35:51,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 04:35:51,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 04:35:51,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 04:35:51,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 04:35:51,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 04:35:51,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:35:51,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 04:35:51,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 04:35:51,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 04:35:51,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 04:35:51,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 04:35:51,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 04:35:51,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 04:35:51,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2824624fed4ccbdafc00f63c200acab83727308 [2021-08-29 04:35:51,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 04:35:52,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 04:35:52,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 04:35:52,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 04:35:52,004 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 04:35:52,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label53.c [2021-08-29 04:35:52,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1e190ed/e1f4ecff3fe9488b818b68ebde9074d4/FLAGbfaa447d7 [2021-08-29 04:35:52,567 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 04:35:52,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label53.c [2021-08-29 04:35:52,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1e190ed/e1f4ecff3fe9488b818b68ebde9074d4/FLAGbfaa447d7 [2021-08-29 04:35:53,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb1e190ed/e1f4ecff3fe9488b818b68ebde9074d4 [2021-08-29 04:35:53,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 04:35:53,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 04:35:53,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 04:35:53,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 04:35:53,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 04:35:53,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf8c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53, skipping insertion in model container [2021-08-29 04:35:53,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 04:35:53,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 04:35:53,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label53.c[6841,6854] [2021-08-29 04:35:53,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:35:53,570 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 04:35:53,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label53.c[6841,6854] [2021-08-29 04:35:53,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:35:53,694 INFO L208 MainTranslator]: Completed translation [2021-08-29 04:35:53,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53 WrapperNode [2021-08-29 04:35:53,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 04:35:53,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 04:35:53,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 04:35:53,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 04:35:53,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 04:35:53,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 04:35:53,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 04:35:53,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 04:35:53,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 04:35:53,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 04:35:53,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 04:35:53,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 04:35:53,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (1/1) ... [2021-08-29 04:35:53,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:35:53,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:35:53,963 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 04:35:53,980 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 04:35:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 04:35:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 04:35:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 04:35:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 04:35:54,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 04:35:54,523 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 04:35:54,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:35:54 BoogieIcfgContainer [2021-08-29 04:35:54,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 04:35:54,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 04:35:54,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 04:35:54,528 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 04:35:54,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:35:53" (1/3) ... [2021-08-29 04:35:54,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ec1a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:35:54, skipping insertion in model container [2021-08-29 04:35:54,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:35:53" (2/3) ... [2021-08-29 04:35:54,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ec1a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:35:54, skipping insertion in model container [2021-08-29 04:35:54,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:35:54" (3/3) ... [2021-08-29 04:35:54,530 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label53.c [2021-08-29 04:35:54,534 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 04:35:54,534 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 04:35:54,573 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 04:35:54,577 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 04:35:54,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 04:35:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:54,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-29 04:35:54,599 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:54,600 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:54,600 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:54,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:54,604 INFO L82 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2021-08-29 04:35:54,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:54,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943370174] [2021-08-29 04:35:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:54,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:54,861 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 04:35:54,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:54,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943370174] [2021-08-29 04:35:54,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943370174] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:54,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:54,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:35:54,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127070419] [2021-08-29 04:35:54,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:54,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:54,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:54,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:54,889 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:55,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:55,949 INFO L93 Difference]: Finished difference Result 769 states and 1360 transitions. [2021-08-29 04:35:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:55,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2021-08-29 04:35:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:55,960 INFO L225 Difference]: With dead ends: 769 [2021-08-29 04:35:55,960 INFO L226 Difference]: Without dead ends: 422 [2021-08-29 04:35:55,963 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:55,965 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 193 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 782.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.56ms SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 992.68ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:55,967 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 0 Invalid, 954 Unknown, 0 Unchecked, 6.56ms Time], IncrementalHoareTripleChecker [208 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 992.68ms Time] [2021-08-29 04:35:55,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-08-29 04:35:56,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2021-08-29 04:35:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2021-08-29 04:35:56,030 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 47 [2021-08-29 04:35:56,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:56,030 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2021-08-29 04:35:56,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2021-08-29 04:35:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-29 04:35:56,038 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:56,039 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:56,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 04:35:56,039 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:56,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:56,041 INFO L82 PathProgramCache]: Analyzing trace with hash 822269331, now seen corresponding path program 1 times [2021-08-29 04:35:56,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:56,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838514764] [2021-08-29 04:35:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:56,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:56,203 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:35:56,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:56,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838514764] [2021-08-29 04:35:56,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838514764] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:56,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:56,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:35:56,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88394252] [2021-08-29 04:35:56,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:56,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:56,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:56,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:56,207 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:56,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:56,900 INFO L93 Difference]: Finished difference Result 1194 states and 1821 transitions. [2021-08-29 04:35:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:56,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-08-29 04:35:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:56,904 INFO L225 Difference]: With dead ends: 1194 [2021-08-29 04:35:56,904 INFO L226 Difference]: Without dead ends: 784 [2021-08-29 04:35:56,905 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:56,906 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 175 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 671.02ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:56,906 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 0 Invalid, 785 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [183 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 671.02ms Time] [2021-08-29 04:35:56,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-08-29 04:35:56,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2021-08-29 04:35:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.3742017879948913) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:56,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-08-29 04:35:56,931 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 113 [2021-08-29 04:35:56,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:56,932 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-08-29 04:35:56,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:56,932 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-08-29 04:35:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-08-29 04:35:56,935 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:56,936 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:56,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 04:35:56,936 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash -995772387, now seen corresponding path program 1 times [2021-08-29 04:35:56,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:56,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091514081] [2021-08-29 04:35:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:56,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:57,057 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:35:57,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:57,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091514081] [2021-08-29 04:35:57,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091514081] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:57,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:57,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:35:57,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802303799] [2021-08-29 04:35:57,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:57,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:57,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:57,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:57,062 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:57,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:57,723 INFO L93 Difference]: Finished difference Result 1936 states and 2599 transitions. [2021-08-29 04:35:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:57,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-08-29 04:35:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:57,727 INFO L225 Difference]: With dead ends: 1936 [2021-08-29 04:35:57,727 INFO L226 Difference]: Without dead ends: 1154 [2021-08-29 04:35:57,728 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.70ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:57,729 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 517.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.71ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 631.68ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:57,729 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 0 Invalid, 757 Unknown, 0 Unchecked, 1.71ms Time], IncrementalHoareTripleChecker [38 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 631.68ms Time] [2021-08-29 04:35:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-08-29 04:35:57,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1153. [2021-08-29 04:35:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1152 states have (on average 1.2699652777777777) internal successors, (1463), 1152 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1463 transitions. [2021-08-29 04:35:57,743 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1463 transitions. Word has length 117 [2021-08-29 04:35:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:57,743 INFO L470 AbstractCegarLoop]: Abstraction has 1153 states and 1463 transitions. [2021-08-29 04:35:57,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1463 transitions. [2021-08-29 04:35:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-08-29 04:35:57,744 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:57,745 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:57,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 04:35:57,745 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:57,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1474139372, now seen corresponding path program 1 times [2021-08-29 04:35:57,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:57,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685668224] [2021-08-29 04:35:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:57,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:57,799 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:35:57,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:57,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685668224] [2021-08-29 04:35:57,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685668224] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:57,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:57,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:57,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999045192] [2021-08-29 04:35:57,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:57,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:57,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:57,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:57,801 INFO L87 Difference]: Start difference. First operand 1153 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:58,502 INFO L93 Difference]: Finished difference Result 2679 states and 3481 transitions. [2021-08-29 04:35:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:58,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2021-08-29 04:35:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:58,509 INFO L225 Difference]: With dead ends: 2679 [2021-08-29 04:35:58,509 INFO L226 Difference]: Without dead ends: 1712 [2021-08-29 04:35:58,510 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:58,511 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 159 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 543.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 669.01ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:58,511 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 0 Invalid, 977 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [99 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 669.01ms Time] [2021-08-29 04:35:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-08-29 04:35:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1521. [2021-08-29 04:35:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1521 states, 1520 states have (on average 1.255921052631579) internal successors, (1909), 1520 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:58,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1521 states to 1521 states and 1909 transitions. [2021-08-29 04:35:58,531 INFO L78 Accepts]: Start accepts. Automaton has 1521 states and 1909 transitions. Word has length 159 [2021-08-29 04:35:58,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:58,532 INFO L470 AbstractCegarLoop]: Abstraction has 1521 states and 1909 transitions. [2021-08-29 04:35:58,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:58,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1521 states and 1909 transitions. [2021-08-29 04:35:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-08-29 04:35:58,537 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:58,537 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:58,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 04:35:58,538 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -47300224, now seen corresponding path program 1 times [2021-08-29 04:35:58,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:58,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687250997] [2021-08-29 04:35:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:58,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-08-29 04:35:58,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:58,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687250997] [2021-08-29 04:35:58,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687250997] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:58,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:58,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:58,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183869555] [2021-08-29 04:35:58,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:58,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:58,648 INFO L87 Difference]: Start difference. First operand 1521 states and 1909 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:59,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:35:59,406 INFO L93 Difference]: Finished difference Result 3597 states and 4559 transitions. [2021-08-29 04:35:59,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:35:59,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 229 [2021-08-29 04:35:59,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:35:59,412 INFO L225 Difference]: With dead ends: 3597 [2021-08-29 04:35:59,412 INFO L226 Difference]: Without dead ends: 2078 [2021-08-29 04:35:59,414 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:59,415 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 150 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 598.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.12ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 728.28ms IncrementalHoareTripleChecker+Time [2021-08-29 04:35:59,415 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 0 Invalid, 1071 Unknown, 0 Unchecked, 2.12ms Time], IncrementalHoareTripleChecker [86 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 728.28ms Time] [2021-08-29 04:35:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-08-29 04:35:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1889. [2021-08-29 04:35:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1889 states, 1888 states have (on average 1.2473516949152543) internal successors, (2355), 1888 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2355 transitions. [2021-08-29 04:35:59,442 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2355 transitions. Word has length 229 [2021-08-29 04:35:59,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:35:59,443 INFO L470 AbstractCegarLoop]: Abstraction has 1889 states and 2355 transitions. [2021-08-29 04:35:59,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:35:59,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2355 transitions. [2021-08-29 04:35:59,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-08-29 04:35:59,446 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:35:59,446 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:35:59,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-29 04:35:59,448 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:35:59,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:35:59,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1662120667, now seen corresponding path program 1 times [2021-08-29 04:35:59,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:35:59,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594644531] [2021-08-29 04:35:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:35:59,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:35:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:35:59,574 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:35:59,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:35:59,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594644531] [2021-08-29 04:35:59,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594644531] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:35:59,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:35:59,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:35:59,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658463488] [2021-08-29 04:35:59,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:35:59,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:35:59,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:35:59,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:35:59,581 INFO L87 Difference]: Start difference. First operand 1889 states and 2355 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states 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 04:36:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:00,232 INFO L93 Difference]: Finished difference Result 5075 states and 6326 transitions. [2021-08-29 04:36:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:00,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 256 [2021-08-29 04:36:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:00,241 INFO L225 Difference]: With dead ends: 5075 [2021-08-29 04:36:00,241 INFO L226 Difference]: Without dead ends: 3188 [2021-08-29 04:36:00,243 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:00,244 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 516.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.54ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 623.48ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:00,246 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 807 Unknown, 0 Unchecked, 1.54ms Time], IncrementalHoareTripleChecker [74 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 623.48ms Time] [2021-08-29 04:36:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-08-29 04:36:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 3186. [2021-08-29 04:36:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2156985871271586) internal successors, (3872), 3185 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states 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 04:36:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3872 transitions. [2021-08-29 04:36:00,283 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3872 transitions. Word has length 256 [2021-08-29 04:36:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:00,284 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3872 transitions. [2021-08-29 04:36:00,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states 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 04:36:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3872 transitions. [2021-08-29 04:36:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-08-29 04:36:00,287 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:00,287 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:00,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 04:36:00,287 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:00,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:00,288 INFO L82 PathProgramCache]: Analyzing trace with hash -287769023, now seen corresponding path program 1 times [2021-08-29 04:36:00,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:00,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890555832] [2021-08-29 04:36:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:00,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-29 04:36:00,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:00,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890555832] [2021-08-29 04:36:00,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890555832] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:00,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:00,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:00,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469025353] [2021-08-29 04:36:00,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:00,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:00,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:00,404 INFO L87 Difference]: Start difference. First operand 3186 states and 3872 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states 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 04:36:01,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:01,094 INFO L93 Difference]: Finished difference Result 6928 states and 8407 transitions. [2021-08-29 04:36:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:01,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 265 [2021-08-29 04:36:01,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:01,103 INFO L225 Difference]: With dead ends: 6928 [2021-08-29 04:36:01,103 INFO L226 Difference]: Without dead ends: 3744 [2021-08-29 04:36:01,105 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:01,106 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 173 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 516.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.55ms SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 659.15ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:01,106 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 0 Invalid, 788 Unknown, 0 Unchecked, 1.55ms Time], IncrementalHoareTripleChecker [62 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 659.15ms Time] [2021-08-29 04:36:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-08-29 04:36:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3186. [2021-08-29 04:36:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3186 states, 3185 states have (on average 1.2156985871271586) internal successors, (3872), 3185 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states 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 04:36:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 3872 transitions. [2021-08-29 04:36:01,139 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 3872 transitions. Word has length 265 [2021-08-29 04:36:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:01,140 INFO L470 AbstractCegarLoop]: Abstraction has 3186 states and 3872 transitions. [2021-08-29 04:36:01,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states 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 04:36:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 3872 transitions. [2021-08-29 04:36:01,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-08-29 04:36:01,143 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:01,143 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:36:01,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 04:36:01,143 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:01,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:01,144 INFO L82 PathProgramCache]: Analyzing trace with hash -592217694, now seen corresponding path program 1 times [2021-08-29 04:36:01,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:01,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920161827] [2021-08-29 04:36:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:01,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:36:01,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:01,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920161827] [2021-08-29 04:36:01,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920161827] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:01,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:01,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:36:01,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385819374] [2021-08-29 04:36:01,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 04:36:01,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 04:36:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:36:01,251 INFO L87 Difference]: Start difference. First operand 3186 states and 3872 transitions. Second operand has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:02,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:02,783 INFO L93 Difference]: Finished difference Result 11357 states and 13866 transitions. [2021-08-29 04:36:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 04:36:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2021-08-29 04:36:02,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:02,804 INFO L225 Difference]: With dead ends: 11357 [2021-08-29 04:36:02,805 INFO L226 Difference]: Without dead ends: 8173 [2021-08-29 04:36:02,808 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.70ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:36:02,808 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 383 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1169.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.86ms SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1469.42ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:02,809 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 0 Invalid, 2357 Unknown, 0 Unchecked, 3.86ms Time], IncrementalHoareTripleChecker [318 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 1469.42ms Time] [2021-08-29 04:36:02,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8173 states. [2021-08-29 04:36:02,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8173 to 7978. [2021-08-29 04:36:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7978 states, 7977 states have (on average 1.184655885671305) internal successors, (9450), 7977 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states 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 04:36:02,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7978 states to 7978 states and 9450 transitions. [2021-08-29 04:36:02,929 INFO L78 Accepts]: Start accepts. Automaton has 7978 states and 9450 transitions. Word has length 266 [2021-08-29 04:36:02,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:02,929 INFO L470 AbstractCegarLoop]: Abstraction has 7978 states and 9450 transitions. [2021-08-29 04:36:02,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.2) internal successors, (266), 4 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:02,930 INFO L276 IsEmpty]: Start isEmpty. Operand 7978 states and 9450 transitions. [2021-08-29 04:36:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-08-29 04:36:02,933 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:02,934 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:02,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 04:36:02,934 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:02,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1968548590, now seen corresponding path program 1 times [2021-08-29 04:36:02,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:02,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274514719] [2021-08-29 04:36:02,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:02,935 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:36:03,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:03,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274514719] [2021-08-29 04:36:03,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274514719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:03,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:03,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:03,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102097334] [2021-08-29 04:36:03,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:03,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:03,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:03,009 INFO L87 Difference]: Start difference. First operand 7978 states and 9450 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:03,635 INFO L93 Difference]: Finished difference Result 15584 states and 18510 transitions. [2021-08-29 04:36:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2021-08-29 04:36:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:03,652 INFO L225 Difference]: With dead ends: 15584 [2021-08-29 04:36:03,652 INFO L226 Difference]: Without dead ends: 7976 [2021-08-29 04:36:03,657 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.35ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:03,657 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 464.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.10ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 578.56ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:03,658 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 906 Unknown, 0 Unchecked, 1.10ms Time], IncrementalHoareTripleChecker [51 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 578.56ms Time] [2021-08-29 04:36:03,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2021-08-29 04:36:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 7792. [2021-08-29 04:36:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7792 states, 7791 states have (on average 1.145295854190733) internal successors, (8923), 7791 states have internal predecessors, (8923), 0 states have call successors, (0), 0 states 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 04:36:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7792 states to 7792 states and 8923 transitions. [2021-08-29 04:36:03,786 INFO L78 Accepts]: Start accepts. Automaton has 7792 states and 8923 transitions. Word has length 271 [2021-08-29 04:36:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:03,787 INFO L470 AbstractCegarLoop]: Abstraction has 7792 states and 8923 transitions. [2021-08-29 04:36:03,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:03,787 INFO L276 IsEmpty]: Start isEmpty. Operand 7792 states and 8923 transitions. [2021-08-29 04:36:03,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-08-29 04:36:03,791 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:03,791 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:03,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 04:36:03,791 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:03,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:03,792 INFO L82 PathProgramCache]: Analyzing trace with hash 63284525, now seen corresponding path program 1 times [2021-08-29 04:36:03,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:03,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030982366] [2021-08-29 04:36:03,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:03,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:03,877 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:36:03,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:03,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030982366] [2021-08-29 04:36:03,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030982366] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:03,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:03,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:36:03,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856529283] [2021-08-29 04:36:03,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:03,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:03,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:03,880 INFO L87 Difference]: Start difference. First operand 7792 states and 8923 transitions. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 04:36:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:04,856 INFO L93 Difference]: Finished difference Result 17060 states and 19558 transitions. [2021-08-29 04:36:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:04,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 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 283 [2021-08-29 04:36:04,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:04,867 INFO L225 Difference]: With dead ends: 17060 [2021-08-29 04:36:04,868 INFO L226 Difference]: Without dead ends: 9638 [2021-08-29 04:36:04,871 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.85ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:04,872 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 270 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 766.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.87ms SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 921.04ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:04,872 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 0 Invalid, 1309 Unknown, 0 Unchecked, 1.87ms Time], IncrementalHoareTripleChecker [176 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 921.04ms Time] [2021-08-29 04:36:04,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9638 states. [2021-08-29 04:36:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9638 to 9632. [2021-08-29 04:36:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9632 states, 9631 states have (on average 1.1318658498598277) internal successors, (10901), 9631 states have internal predecessors, (10901), 0 states have call successors, (0), 0 states 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 04:36:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9632 states to 9632 states and 10901 transitions. [2021-08-29 04:36:04,959 INFO L78 Accepts]: Start accepts. Automaton has 9632 states and 10901 transitions. Word has length 283 [2021-08-29 04:36:04,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:04,959 INFO L470 AbstractCegarLoop]: Abstraction has 9632 states and 10901 transitions. [2021-08-29 04:36:04,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states 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 04:36:04,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9632 states and 10901 transitions. [2021-08-29 04:36:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-08-29 04:36:04,964 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:04,965 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:04,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-29 04:36:04,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash 240124637, now seen corresponding path program 1 times [2021-08-29 04:36:04,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:04,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70536901] [2021-08-29 04:36:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:04,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-08-29 04:36:05,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:05,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70536901] [2021-08-29 04:36:05,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70536901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:05,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:05,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:05,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925352568] [2021-08-29 04:36:05,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:05,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:05,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:05,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:05,037 INFO L87 Difference]: Start difference. First operand 9632 states and 10901 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states 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 04:36:05,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:05,700 INFO L93 Difference]: Finished difference Result 19631 states and 22247 transitions. [2021-08-29 04:36:05,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:05,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 315 [2021-08-29 04:36:05,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:05,712 INFO L225 Difference]: With dead ends: 19631 [2021-08-29 04:36:05,712 INFO L226 Difference]: Without dead ends: 10369 [2021-08-29 04:36:05,718 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:05,719 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 172 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 507.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.18ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 611.09ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:05,719 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 0 Invalid, 765 Unknown, 0 Unchecked, 1.18ms Time], IncrementalHoareTripleChecker [78 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 611.09ms Time] [2021-08-29 04:36:05,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2021-08-29 04:36:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 8888. [2021-08-29 04:36:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8888 states, 8887 states have (on average 1.1301901654101496) internal successors, (10044), 8887 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states 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 04:36:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8888 states to 8888 states and 10044 transitions. [2021-08-29 04:36:05,818 INFO L78 Accepts]: Start accepts. Automaton has 8888 states and 10044 transitions. Word has length 315 [2021-08-29 04:36:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:05,819 INFO L470 AbstractCegarLoop]: Abstraction has 8888 states and 10044 transitions. [2021-08-29 04:36:05,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states 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 04:36:05,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8888 states and 10044 transitions. [2021-08-29 04:36:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-08-29 04:36:05,827 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:05,827 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 04:36:05,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-29 04:36:05,828 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:05,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:05,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1241149180, now seen corresponding path program 1 times [2021-08-29 04:36:05,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:05,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010749384] [2021-08-29 04:36:05,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:05,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-08-29 04:36:05,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:05,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010749384] [2021-08-29 04:36:05,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010749384] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:05,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:05,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:05,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627582950] [2021-08-29 04:36:05,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:05,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:05,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:05,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:05,968 INFO L87 Difference]: Start difference. First operand 8888 states and 10044 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:06,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:06,684 INFO L93 Difference]: Finished difference Result 18334 states and 20776 transitions. [2021-08-29 04:36:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:06,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2021-08-29 04:36:06,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:06,697 INFO L225 Difference]: With dead ends: 18334 [2021-08-29 04:36:06,697 INFO L226 Difference]: Without dead ends: 9816 [2021-08-29 04:36:06,705 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:06,705 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 542.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 663.44ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:06,705 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 0 Invalid, 985 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [37 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 663.44ms Time] [2021-08-29 04:36:06,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2021-08-29 04:36:06,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 9813. [2021-08-29 04:36:06,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 9812 states have (on average 1.1271911944557684) internal successors, (11060), 9812 states have internal predecessors, (11060), 0 states have call successors, (0), 0 states 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 04:36:06,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 11060 transitions. [2021-08-29 04:36:06,818 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 11060 transitions. Word has length 412 [2021-08-29 04:36:06,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:06,818 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 11060 transitions. [2021-08-29 04:36:06,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:06,819 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 11060 transitions. [2021-08-29 04:36:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-08-29 04:36:06,828 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:06,828 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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 04:36:06,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-29 04:36:06,829 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:06,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1908588689, now seen corresponding path program 1 times [2021-08-29 04:36:06,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:06,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240021885] [2021-08-29 04:36:06,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:06,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 462 proven. 78 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-08-29 04:36:07,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:07,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240021885] [2021-08-29 04:36:07,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240021885] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:36:07,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320822389] [2021-08-29 04:36:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:07,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:36:07,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:36:07,069 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 04:36:07,073 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 04:36:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:07,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 04:36:07,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:36:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-08-29 04:36:08,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:36:08,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320822389] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:08,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:36:08,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:36:08,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847884252] [2021-08-29 04:36:08,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:08,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:36:08,067 INFO L87 Difference]: Start difference. First operand 9813 states and 11060 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 04:36:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:08,632 INFO L93 Difference]: Finished difference Result 19441 states and 21929 transitions. [2021-08-29 04:36:08,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:08,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 416 [2021-08-29 04:36:08,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:08,644 INFO L225 Difference]: With dead ends: 19441 [2021-08-29 04:36:08,644 INFO L226 Difference]: Without dead ends: 9998 [2021-08-29 04:36:08,651 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 53.23ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:36:08,652 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 127 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 424.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 521.85ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:08,652 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 0 Invalid, 722 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [72 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 521.85ms Time] [2021-08-29 04:36:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9998 states. [2021-08-29 04:36:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9998 to 9813. [2021-08-29 04:36:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9813 states, 9812 states have (on average 1.1229107215654301) internal successors, (11018), 9812 states have internal predecessors, (11018), 0 states have call successors, (0), 0 states 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 04:36:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9813 states to 9813 states and 11018 transitions. [2021-08-29 04:36:08,732 INFO L78 Accepts]: Start accepts. Automaton has 9813 states and 11018 transitions. Word has length 416 [2021-08-29 04:36:08,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:08,733 INFO L470 AbstractCegarLoop]: Abstraction has 9813 states and 11018 transitions. [2021-08-29 04:36:08,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states 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 04:36:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9813 states and 11018 transitions. [2021-08-29 04:36:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2021-08-29 04:36:08,742 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:08,743 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:08,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-29 04:36:08,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-29 04:36:08,961 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1076489507, now seen corresponding path program 1 times [2021-08-29 04:36:08,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:08,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157497910] [2021-08-29 04:36:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:08,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-08-29 04:36:09,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:09,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157497910] [2021-08-29 04:36:09,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157497910] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:09,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:09,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-29 04:36:09,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836391092] [2021-08-29 04:36:09,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 04:36:09,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:09,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 04:36:09,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:36:09,219 INFO L87 Difference]: Start difference. First operand 9813 states and 11018 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states 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 04:36:10,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:10,568 INFO L93 Difference]: Finished difference Result 22957 states and 25736 transitions. [2021-08-29 04:36:10,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 04:36:10,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 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 417 [2021-08-29 04:36:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:10,582 INFO L225 Difference]: With dead ends: 22957 [2021-08-29 04:36:10,582 INFO L226 Difference]: Without dead ends: 13514 [2021-08-29 04:36:10,591 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 71.09ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-08-29 04:36:10,592 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 310 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1015.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.81ms SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1228.61ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:10,592 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 0 Invalid, 2330 Unknown, 0 Unchecked, 4.81ms Time], IncrementalHoareTripleChecker [290 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 1228.61ms Time] [2021-08-29 04:36:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13514 states. [2021-08-29 04:36:10,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13514 to 12942. [2021-08-29 04:36:10,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12942 states, 12941 states have (on average 1.1209334672745537) internal successors, (14506), 12941 states have internal predecessors, (14506), 0 states have call successors, (0), 0 states 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 04:36:10,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12942 states to 12942 states and 14506 transitions. [2021-08-29 04:36:10,739 INFO L78 Accepts]: Start accepts. Automaton has 12942 states and 14506 transitions. Word has length 417 [2021-08-29 04:36:10,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:10,739 INFO L470 AbstractCegarLoop]: Abstraction has 12942 states and 14506 transitions. [2021-08-29 04:36:10,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states 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 04:36:10,740 INFO L276 IsEmpty]: Start isEmpty. Operand 12942 states and 14506 transitions. [2021-08-29 04:36:10,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2021-08-29 04:36:10,751 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:10,751 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 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] [2021-08-29 04:36:10,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-29 04:36:10,752 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:10,752 INFO L82 PathProgramCache]: Analyzing trace with hash 835183340, now seen corresponding path program 1 times [2021-08-29 04:36:10,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:10,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853884620] [2021-08-29 04:36:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:10,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:10,874 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-08-29 04:36:10,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:10,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853884620] [2021-08-29 04:36:10,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853884620] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:10,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:10,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:10,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551647021] [2021-08-29 04:36:10,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:10,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:10,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:10,878 INFO L87 Difference]: Start difference. First operand 12942 states and 14506 transitions. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:11,640 INFO L93 Difference]: Finished difference Result 28090 states and 31488 transitions. [2021-08-29 04:36:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:11,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 418 [2021-08-29 04:36:11,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:11,654 INFO L225 Difference]: With dead ends: 28090 [2021-08-29 04:36:11,654 INFO L226 Difference]: Without dead ends: 13489 [2021-08-29 04:36:11,663 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:11,664 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 122 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 554.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 677.20ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:11,664 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 0 Invalid, 987 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [93 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 677.20ms Time] [2021-08-29 04:36:11,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13489 states. [2021-08-29 04:36:11,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13489 to 13489. [2021-08-29 04:36:11,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13489 states, 13488 states have (on average 1.1066132858837485) internal successors, (14926), 13488 states have internal predecessors, (14926), 0 states have call successors, (0), 0 states 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 04:36:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13489 states to 13489 states and 14926 transitions. [2021-08-29 04:36:11,845 INFO L78 Accepts]: Start accepts. Automaton has 13489 states and 14926 transitions. Word has length 418 [2021-08-29 04:36:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:11,846 INFO L470 AbstractCegarLoop]: Abstraction has 13489 states and 14926 transitions. [2021-08-29 04:36:11,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 13489 states and 14926 transitions. [2021-08-29 04:36:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-08-29 04:36:11,859 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:11,860 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:11,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-29 04:36:11,860 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:11,860 INFO L82 PathProgramCache]: Analyzing trace with hash -740708408, now seen corresponding path program 1 times [2021-08-29 04:36:11,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:11,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759079033] [2021-08-29 04:36:11,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:11,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-08-29 04:36:11,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:11,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759079033] [2021-08-29 04:36:11,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759079033] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:11,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:11,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:11,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119646208] [2021-08-29 04:36:11,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:11,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:11,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:11,975 INFO L87 Difference]: Start difference. First operand 13489 states and 14926 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states 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 04:36:12,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:12,635 INFO L93 Difference]: Finished difference Result 27895 states and 30915 transitions. [2021-08-29 04:36:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:12,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 426 [2021-08-29 04:36:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:12,650 INFO L225 Difference]: With dead ends: 27895 [2021-08-29 04:36:12,651 INFO L226 Difference]: Without dead ends: 14776 [2021-08-29 04:36:12,658 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:12,659 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 199 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 473.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 582.37ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:12,660 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 0 Invalid, 932 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [35 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 582.37ms Time] [2021-08-29 04:36:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14776 states. [2021-08-29 04:36:12,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14776 to 14592. [2021-08-29 04:36:12,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14592 states, 14591 states have (on average 1.1034884517853472) internal successors, (16101), 14591 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states 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 04:36:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14592 states to 14592 states and 16101 transitions. [2021-08-29 04:36:12,834 INFO L78 Accepts]: Start accepts. Automaton has 14592 states and 16101 transitions. Word has length 426 [2021-08-29 04:36:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:12,835 INFO L470 AbstractCegarLoop]: Abstraction has 14592 states and 16101 transitions. [2021-08-29 04:36:12,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states 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 04:36:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 14592 states and 16101 transitions. [2021-08-29 04:36:12,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-08-29 04:36:12,845 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:12,845 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:12,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-29 04:36:12,845 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:12,846 INFO L82 PathProgramCache]: Analyzing trace with hash -406320324, now seen corresponding path program 1 times [2021-08-29 04:36:12,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:12,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542941093] [2021-08-29 04:36:12,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:12,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 395 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-08-29 04:36:13,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:13,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542941093] [2021-08-29 04:36:13,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542941093] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:36:13,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390029239] [2021-08-29 04:36:13,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:13,161 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:36:13,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:36:13,177 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 04:36:13,221 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 04:36:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:13,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:36:13,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:36:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 282 proven. 121 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-08-29 04:36:15,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 04:36:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 282 proven. 121 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-08-29 04:36:18,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390029239] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 04:36:18,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-29 04:36:18,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2021-08-29 04:36:18,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550404448] [2021-08-29 04:36:18,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-29 04:36:18,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-29 04:36:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-08-29 04:36:18,893 INFO L87 Difference]: Start difference. First operand 14592 states and 16101 transitions. Second operand has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 states have internal predecessors, (951), 0 states have call successors, (0), 0 states 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 04:36:22,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:22,984 INFO L93 Difference]: Finished difference Result 34967 states and 38359 transitions. [2021-08-29 04:36:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-29 04:36:22,985 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 states have internal predecessors, (951), 0 states have call successors, (0), 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 427 [2021-08-29 04:36:22,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:23,005 INFO L225 Difference]: With dead ends: 34967 [2021-08-29 04:36:23,006 INFO L226 Difference]: Without dead ends: 20182 [2021-08-29 04:36:23,016 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 885 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 663.32ms TimeCoverageRelationStatistics Valid=368, Invalid=964, Unknown=0, NotChecked=0, Total=1332 [2021-08-29 04:36:23,017 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1315 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 1052 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2698.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.73ms SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3255.76ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:23,017 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 0 Invalid, 5409 Unknown, 0 Unchecked, 12.73ms Time], IncrementalHoareTripleChecker [1052 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 3255.76ms Time] [2021-08-29 04:36:23,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20182 states. [2021-08-29 04:36:23,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20182 to 12560. [2021-08-29 04:36:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12560 states, 12559 states have (on average 1.0828887650290628) internal successors, (13600), 12559 states have internal predecessors, (13600), 0 states have call successors, (0), 0 states 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 04:36:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12560 states to 12560 states and 13600 transitions. [2021-08-29 04:36:23,227 INFO L78 Accepts]: Start accepts. Automaton has 12560 states and 13600 transitions. Word has length 427 [2021-08-29 04:36:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:23,227 INFO L470 AbstractCegarLoop]: Abstraction has 12560 states and 13600 transitions. [2021-08-29 04:36:23,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 86.45454545454545) internal successors, (951), 10 states have internal predecessors, (951), 0 states have call successors, (0), 0 states 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 04:36:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 12560 states and 13600 transitions. [2021-08-29 04:36:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-08-29 04:36:23,252 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:23,252 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:23,294 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 04:36:23,452 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,SelfDestructingSolverStorable16 [2021-08-29 04:36:23,453 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:23,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:23,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1378519044, now seen corresponding path program 1 times [2021-08-29 04:36:23,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:23,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307303000] [2021-08-29 04:36:23,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:23,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2021-08-29 04:36:23,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:23,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307303000] [2021-08-29 04:36:23,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307303000] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:23,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:23,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:23,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405825445] [2021-08-29 04:36:23,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:23,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:23,554 INFO L87 Difference]: Start difference. First operand 12560 states and 13600 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 04:36:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:24,073 INFO L93 Difference]: Finished difference Result 26221 states and 28438 transitions. [2021-08-29 04:36:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2021-08-29 04:36:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:24,086 INFO L225 Difference]: With dead ends: 26221 [2021-08-29 04:36:24,086 INFO L226 Difference]: Without dead ends: 14031 [2021-08-29 04:36:24,094 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:24,095 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 171 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 365.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 448.83ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:24,095 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 0 Invalid, 629 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [57 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 448.83ms Time] [2021-08-29 04:36:24,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14031 states. [2021-08-29 04:36:24,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14031 to 12375. [2021-08-29 04:36:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12375 states, 12374 states have (on average 1.08364312267658) internal successors, (13409), 12374 states have internal predecessors, (13409), 0 states have call successors, (0), 0 states 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 04:36:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12375 states to 12375 states and 13409 transitions. [2021-08-29 04:36:24,227 INFO L78 Accepts]: Start accepts. Automaton has 12375 states and 13409 transitions. Word has length 438 [2021-08-29 04:36:24,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:24,228 INFO L470 AbstractCegarLoop]: Abstraction has 12375 states and 13409 transitions. [2021-08-29 04:36:24,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states 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 04:36:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 12375 states and 13409 transitions. [2021-08-29 04:36:24,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-08-29 04:36:24,236 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:24,236 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 04:36:24,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-29 04:36:24,237 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:24,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:24,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1889494746, now seen corresponding path program 1 times [2021-08-29 04:36:24,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:24,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34258439] [2021-08-29 04:36:24,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:24,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:36:24,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:24,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34258439] [2021-08-29 04:36:24,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34258439] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:24,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:24,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:36:24,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757253377] [2021-08-29 04:36:24,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:24,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:24,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:24,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:24,347 INFO L87 Difference]: Start difference. First operand 12375 states and 13409 transitions. Second operand has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 04:36:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:25,277 INFO L93 Difference]: Finished difference Result 26596 states and 28812 transitions. [2021-08-29 04:36:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:25,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 449 [2021-08-29 04:36:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:25,286 INFO L225 Difference]: With dead ends: 26596 [2021-08-29 04:36:25,286 INFO L226 Difference]: Without dead ends: 14591 [2021-08-29 04:36:25,302 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.88ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:25,302 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 178 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 641.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 782.44ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:25,303 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 0 Invalid, 1222 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [184 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 782.44ms Time] [2021-08-29 04:36:25,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14591 states. [2021-08-29 04:36:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14591 to 13297. [2021-08-29 04:36:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13297 states, 13296 states have (on average 1.079196750902527) internal successors, (14349), 13296 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states 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 04:36:25,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13297 states to 13297 states and 14349 transitions. [2021-08-29 04:36:25,449 INFO L78 Accepts]: Start accepts. Automaton has 13297 states and 14349 transitions. Word has length 449 [2021-08-29 04:36:25,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:25,449 INFO L470 AbstractCegarLoop]: Abstraction has 13297 states and 14349 transitions. [2021-08-29 04:36:25,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.25) internal successors, (449), 4 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 04:36:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 13297 states and 14349 transitions. [2021-08-29 04:36:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2021-08-29 04:36:25,457 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:25,458 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:25,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-29 04:36:25,458 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:25,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash 630362065, now seen corresponding path program 1 times [2021-08-29 04:36:25,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:25,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717056550] [2021-08-29 04:36:25,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:25,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-08-29 04:36:25,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:25,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717056550] [2021-08-29 04:36:25,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717056550] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:25,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:25,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:25,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132286131] [2021-08-29 04:36:25,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:25,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:25,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:25,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:25,664 INFO L87 Difference]: Start difference. First operand 13297 states and 14349 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 04:36:26,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:26,329 INFO L93 Difference]: Finished difference Result 27696 states and 29882 transitions. [2021-08-29 04:36:26,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:26,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 464 [2021-08-29 04:36:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:26,340 INFO L225 Difference]: With dead ends: 27696 [2021-08-29 04:36:26,341 INFO L226 Difference]: Without dead ends: 12928 [2021-08-29 04:36:26,348 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:26,349 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 109 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 493.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.81ms SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 591.95ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:26,349 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 0 Invalid, 875 Unknown, 0 Unchecked, 0.81ms Time], IncrementalHoareTripleChecker [68 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 591.95ms Time] [2021-08-29 04:36:26,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2021-08-29 04:36:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 12007. [2021-08-29 04:36:26,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12007 states, 12006 states have (on average 1.064551057804431) internal successors, (12781), 12006 states have internal predecessors, (12781), 0 states have call successors, (0), 0 states 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 04:36:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12007 states to 12007 states and 12781 transitions. [2021-08-29 04:36:26,455 INFO L78 Accepts]: Start accepts. Automaton has 12007 states and 12781 transitions. Word has length 464 [2021-08-29 04:36:26,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:26,455 INFO L470 AbstractCegarLoop]: Abstraction has 12007 states and 12781 transitions. [2021-08-29 04:36:26,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 04:36:26,456 INFO L276 IsEmpty]: Start isEmpty. Operand 12007 states and 12781 transitions. [2021-08-29 04:36:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-08-29 04:36:26,462 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:26,463 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:26,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-29 04:36:26,463 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:26,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -13761946, now seen corresponding path program 1 times [2021-08-29 04:36:26,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:26,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17850249] [2021-08-29 04:36:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:26,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 535 proven. 162 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2021-08-29 04:36:26,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:26,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17850249] [2021-08-29 04:36:26,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17850249] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:36:26,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679727336] [2021-08-29 04:36:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:26,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:36:26,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:36:26,736 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 04:36:26,737 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 04:36:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:26,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 04:36:26,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:36:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 803 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-08-29 04:36:27,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:36:27,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679727336] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:27,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:36:27,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-08-29 04:36:27,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519771442] [2021-08-29 04:36:27,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:27,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:27,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:36:27,610 INFO L87 Difference]: Start difference. First operand 12007 states and 12781 transitions. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states 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 04:36:28,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:28,190 INFO L93 Difference]: Finished difference Result 23832 states and 25380 transitions. [2021-08-29 04:36:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:28,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 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 502 [2021-08-29 04:36:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:28,201 INFO L225 Difference]: With dead ends: 23832 [2021-08-29 04:36:28,201 INFO L226 Difference]: Without dead ends: 12011 [2021-08-29 04:36:28,208 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 36.40ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 04:36:28,208 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 423.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 522.83ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:28,209 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 879 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [54 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 522.83ms Time] [2021-08-29 04:36:28,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12011 states. [2021-08-29 04:36:28,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12011 to 12007. [2021-08-29 04:36:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12007 states, 12006 states have (on average 1.054222888555722) internal successors, (12657), 12006 states have internal predecessors, (12657), 0 states have call successors, (0), 0 states 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 04:36:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12007 states to 12007 states and 12657 transitions. [2021-08-29 04:36:28,318 INFO L78 Accepts]: Start accepts. Automaton has 12007 states and 12657 transitions. Word has length 502 [2021-08-29 04:36:28,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:28,318 INFO L470 AbstractCegarLoop]: Abstraction has 12007 states and 12657 transitions. [2021-08-29 04:36:28,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states 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 04:36:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 12007 states and 12657 transitions. [2021-08-29 04:36:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2021-08-29 04:36:28,327 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:28,327 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:28,347 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 04:36:28,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:36:28,540 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:28,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1083232953, now seen corresponding path program 1 times [2021-08-29 04:36:28,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:28,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54807835] [2021-08-29 04:36:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:28,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 609 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-08-29 04:36:28,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:28,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54807835] [2021-08-29 04:36:28,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54807835] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:28,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:28,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:28,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635165411] [2021-08-29 04:36:28,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:28,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:28,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:28,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:28,652 INFO L87 Difference]: Start difference. First operand 12007 states and 12657 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states 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 04:36:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:29,606 INFO L93 Difference]: Finished difference Result 30650 states and 32320 transitions. [2021-08-29 04:36:29,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 506 [2021-08-29 04:36:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:29,646 INFO L225 Difference]: With dead ends: 30650 [2021-08-29 04:36:29,646 INFO L226 Difference]: Without dead ends: 18829 [2021-08-29 04:36:29,654 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.84ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:29,654 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 195 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 685.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.19ms SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 802.12ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:29,654 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 0 Invalid, 1083 Unknown, 0 Unchecked, 1.19ms Time], IncrementalHoareTripleChecker [60 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 802.12ms Time] [2021-08-29 04:36:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18829 states. [2021-08-29 04:36:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18829 to 16429. [2021-08-29 04:36:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16429 states, 16428 states have (on average 1.0525931336742147) internal successors, (17292), 16428 states have internal predecessors, (17292), 0 states have call successors, (0), 0 states 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 04:36:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16429 states to 16429 states and 17292 transitions. [2021-08-29 04:36:29,803 INFO L78 Accepts]: Start accepts. Automaton has 16429 states and 17292 transitions. Word has length 506 [2021-08-29 04:36:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:29,803 INFO L470 AbstractCegarLoop]: Abstraction has 16429 states and 17292 transitions. [2021-08-29 04:36:29,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states 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 04:36:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16429 states and 17292 transitions. [2021-08-29 04:36:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2021-08-29 04:36:29,826 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:29,827 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:29,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-29 04:36:29,827 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:29,827 INFO L82 PathProgramCache]: Analyzing trace with hash 450076133, now seen corresponding path program 1 times [2021-08-29 04:36:29,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:29,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416460423] [2021-08-29 04:36:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:29,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-08-29 04:36:29,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:29,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416460423] [2021-08-29 04:36:29,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416460423] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:29,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:29,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:29,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578110366] [2021-08-29 04:36:29,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:29,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:29,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:29,926 INFO L87 Difference]: Start difference. First operand 16429 states and 17292 transitions. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states 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 04:36:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:30,745 INFO L93 Difference]: Finished difference Result 31758 states and 33475 transitions. [2021-08-29 04:36:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 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 530 [2021-08-29 04:36:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:30,760 INFO L225 Difference]: With dead ends: 31758 [2021-08-29 04:36:30,760 INFO L226 Difference]: Without dead ends: 17173 [2021-08-29 04:36:30,769 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.38ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:30,772 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 200 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 585.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.16ms SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 732.08ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:30,772 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 0 Invalid, 1165 Unknown, 0 Unchecked, 1.16ms Time], IncrementalHoareTripleChecker [136 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 732.08ms Time] [2021-08-29 04:36:30,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17173 states. [2021-08-29 04:36:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17173 to 16799. [2021-08-29 04:36:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16799 states, 16798 states have (on average 1.0519704726753185) internal successors, (17671), 16798 states have internal predecessors, (17671), 0 states have call successors, (0), 0 states 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 04:36:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16799 states to 16799 states and 17671 transitions. [2021-08-29 04:36:31,026 INFO L78 Accepts]: Start accepts. Automaton has 16799 states and 17671 transitions. Word has length 530 [2021-08-29 04:36:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:31,027 INFO L470 AbstractCegarLoop]: Abstraction has 16799 states and 17671 transitions. [2021-08-29 04:36:31,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states 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 04:36:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand 16799 states and 17671 transitions. [2021-08-29 04:36:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2021-08-29 04:36:31,054 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:31,054 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:31,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-29 04:36:31,054 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:31,056 INFO L82 PathProgramCache]: Analyzing trace with hash -415550207, now seen corresponding path program 1 times [2021-08-29 04:36:31,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:31,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178627425] [2021-08-29 04:36:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:31,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2021-08-29 04:36:31,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:31,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178627425] [2021-08-29 04:36:31,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178627425] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:31,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:31,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:31,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594709088] [2021-08-29 04:36:31,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:31,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:31,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:31,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:31,227 INFO L87 Difference]: Start difference. First operand 16799 states and 17671 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 04:36:31,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:31,787 INFO L93 Difference]: Finished difference Result 31569 states and 33230 transitions. [2021-08-29 04:36:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:31,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 583 [2021-08-29 04:36:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:31,805 INFO L225 Difference]: With dead ends: 31569 [2021-08-29 04:36:31,806 INFO L226 Difference]: Without dead ends: 16614 [2021-08-29 04:36:31,817 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.48ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:31,819 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 191 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 373.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.65ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 467.62ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:31,819 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 0 Invalid, 784 Unknown, 0 Unchecked, 0.65ms Time], IncrementalHoareTripleChecker [7 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 467.62ms Time] [2021-08-29 04:36:31,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16614 states. [2021-08-29 04:36:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16614 to 16614. [2021-08-29 04:36:31,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16614 states, 16613 states have (on average 1.0512851381448263) internal successors, (17465), 16613 states have internal predecessors, (17465), 0 states have call successors, (0), 0 states 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 04:36:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16614 states to 16614 states and 17465 transitions. [2021-08-29 04:36:31,958 INFO L78 Accepts]: Start accepts. Automaton has 16614 states and 17465 transitions. Word has length 583 [2021-08-29 04:36:31,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:31,958 INFO L470 AbstractCegarLoop]: Abstraction has 16614 states and 17465 transitions. [2021-08-29 04:36:31,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 04:36:31,959 INFO L276 IsEmpty]: Start isEmpty. Operand 16614 states and 17465 transitions. [2021-08-29 04:36:31,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2021-08-29 04:36:31,967 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:31,967 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:31,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-29 04:36:31,970 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:31,971 INFO L82 PathProgramCache]: Analyzing trace with hash -673100433, now seen corresponding path program 1 times [2021-08-29 04:36:31,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:31,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555368800] [2021-08-29 04:36:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:31,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-08-29 04:36:32,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:32,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555368800] [2021-08-29 04:36:32,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555368800] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:32,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:32,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:32,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989872861] [2021-08-29 04:36:32,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:32,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:32,171 INFO L87 Difference]: Start difference. First operand 16614 states and 17465 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states 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 04:36:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:32,653 INFO L93 Difference]: Finished difference Result 34344 states and 36134 transitions. [2021-08-29 04:36:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 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 613 [2021-08-29 04:36:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:32,753 INFO L225 Difference]: With dead ends: 34344 [2021-08-29 04:36:32,754 INFO L226 Difference]: Without dead ends: 19574 [2021-08-29 04:36:32,759 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:32,760 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 61 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 322.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.45ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 402.76ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:32,760 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 0 Invalid, 621 Unknown, 0 Unchecked, 0.45ms Time], IncrementalHoareTripleChecker [24 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 402.76ms Time] [2021-08-29 04:36:32,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19574 states. [2021-08-29 04:36:32,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19574 to 17166. [2021-08-29 04:36:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17166 states, 17165 states have (on average 1.0508593067288086) internal successors, (18038), 17165 states have internal predecessors, (18038), 0 states have call successors, (0), 0 states 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 04:36:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17166 states to 17166 states and 18038 transitions. [2021-08-29 04:36:32,932 INFO L78 Accepts]: Start accepts. Automaton has 17166 states and 18038 transitions. Word has length 613 [2021-08-29 04:36:32,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:32,932 INFO L470 AbstractCegarLoop]: Abstraction has 17166 states and 18038 transitions. [2021-08-29 04:36:32,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states 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 04:36:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 17166 states and 18038 transitions. [2021-08-29 04:36:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2021-08-29 04:36:32,942 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:32,942 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:32,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-29 04:36:32,943 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:32,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:32,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1558333360, now seen corresponding path program 1 times [2021-08-29 04:36:32,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:32,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777968327] [2021-08-29 04:36:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:32,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:33,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 946 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2021-08-29 04:36:33,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:33,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777968327] [2021-08-29 04:36:33,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777968327] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:33,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:33,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:33,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609970497] [2021-08-29 04:36:33,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:33,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:33,078 INFO L87 Difference]: Start difference. First operand 17166 states and 18038 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:33,855 INFO L93 Difference]: Finished difference Result 34522 states and 36308 transitions. [2021-08-29 04:36:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:33,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 614 [2021-08-29 04:36:33,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:33,872 INFO L225 Difference]: With dead ends: 34522 [2021-08-29 04:36:33,872 INFO L226 Difference]: Without dead ends: 19016 [2021-08-29 04:36:33,881 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.17ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:33,882 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 179 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1065 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 559.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.14ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 689.67ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:33,883 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 0 Invalid, 1106 Unknown, 0 Unchecked, 1.14ms Time], IncrementalHoareTripleChecker [41 Valid, 1065 Invalid, 0 Unknown, 0 Unchecked, 689.67ms Time] [2021-08-29 04:36:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19016 states. [2021-08-29 04:36:34,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19016 to 16246. [2021-08-29 04:36:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16246 states, 16245 states have (on average 1.0506617420744844) internal successors, (17068), 16245 states have internal predecessors, (17068), 0 states have call successors, (0), 0 states 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 04:36:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16246 states to 16246 states and 17068 transitions. [2021-08-29 04:36:34,028 INFO L78 Accepts]: Start accepts. Automaton has 16246 states and 17068 transitions. Word has length 614 [2021-08-29 04:36:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:34,028 INFO L470 AbstractCegarLoop]: Abstraction has 16246 states and 17068 transitions. [2021-08-29 04:36:34,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:36:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 16246 states and 17068 transitions. [2021-08-29 04:36:34,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2021-08-29 04:36:34,037 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:34,037 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:34,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-29 04:36:34,037 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:34,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:34,038 INFO L82 PathProgramCache]: Analyzing trace with hash 425200427, now seen corresponding path program 1 times [2021-08-29 04:36:34,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:34,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095606226] [2021-08-29 04:36:34,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:34,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 1140 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-08-29 04:36:34,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:34,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095606226] [2021-08-29 04:36:34,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095606226] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:34,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:34,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 04:36:34,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432622634] [2021-08-29 04:36:34,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:36:34,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:36:34,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:34,210 INFO L87 Difference]: Start difference. First operand 16246 states and 17068 transitions. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 04:36:35,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:35,048 INFO L93 Difference]: Finished difference Result 33969 states and 35774 transitions. [2021-08-29 04:36:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:36:35,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 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 620 [2021-08-29 04:36:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:35,064 INFO L225 Difference]: With dead ends: 33969 [2021-08-29 04:36:35,065 INFO L226 Difference]: Without dead ends: 17911 [2021-08-29 04:36:35,074 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.88ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:36:35,074 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 185 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 611.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.13ms SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 747.82ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:35,074 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 0 Invalid, 1126 Unknown, 0 Unchecked, 1.13ms Time], IncrementalHoareTripleChecker [114 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 747.82ms Time] [2021-08-29 04:36:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17911 states. [2021-08-29 04:36:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17911 to 17906. [2021-08-29 04:36:35,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17906 states, 17905 states have (on average 1.0517732476961743) internal successors, (18832), 17905 states have internal predecessors, (18832), 0 states have call successors, (0), 0 states 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 04:36:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17906 states to 17906 states and 18832 transitions. [2021-08-29 04:36:35,224 INFO L78 Accepts]: Start accepts. Automaton has 17906 states and 18832 transitions. Word has length 620 [2021-08-29 04:36:35,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:35,225 INFO L470 AbstractCegarLoop]: Abstraction has 17906 states and 18832 transitions. [2021-08-29 04:36:35,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 04:36:35,225 INFO L276 IsEmpty]: Start isEmpty. Operand 17906 states and 18832 transitions. [2021-08-29 04:36:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-08-29 04:36:35,233 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:36:35,234 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:36:35,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-29 04:36:35,234 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:36:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:36:35,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2023009957, now seen corresponding path program 1 times [2021-08-29 04:36:35,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:36:35,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992314439] [2021-08-29 04:36:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:36:35,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:36:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:36:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2021-08-29 04:36:35,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:36:35,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992314439] [2021-08-29 04:36:35,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992314439] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:36:35,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:36:35,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:36:35,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650916591] [2021-08-29 04:36:35,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:36:35,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:36:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:36:35,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:35,367 INFO L87 Difference]: Start difference. First operand 17906 states and 18832 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states 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 04:36:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:36:35,923 INFO L93 Difference]: Finished difference Result 18093 states and 19030 transitions. [2021-08-29 04:36:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:36:35,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 627 [2021-08-29 04:36:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:36:35,924 INFO L225 Difference]: With dead ends: 18093 [2021-08-29 04:36:35,924 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 04:36:35,929 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:36:35,930 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 143 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 405.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 500.94ms IncrementalHoareTripleChecker+Time [2021-08-29 04:36:35,930 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 0 Invalid, 800 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 500.94ms Time] [2021-08-29 04:36:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 04:36:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 04:36:35,931 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 04:36:35,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 04:36:35,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 627 [2021-08-29 04:36:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:36:35,931 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 04:36:35,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states 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 04:36:35,931 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 04:36:35,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 04:36:35,933 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 04:36:35,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-29 04:36:35,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 04:36:35,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:36:37,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:36:38,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,772 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-08-29 04:36:44,773 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse26 (+ ~a23~0 43))) (let ((.cse21 (<= ~a23~0 306)) (.cse12 (= ~a25~0 12)) (.cse8 (< 0 .cse26))) (let ((.cse4 (or (< 140 ~a29~0) .cse8 (not (= ~a25~0 9)))) (.cse5 (= ~a25~0 10)) (.cse20 (<= 99915 ~a29~0)) (.cse22 (<= ~a29~0 245)) (.cse15 (<= ~a29~0 274)) (.cse16 (<= 130 ~a29~0)) (.cse13 (<= ~a29~0 599998)) (.cse10 (<= ~a23~0 138)) (.cse3 (<= ~a29~0 220)) (.cse23 (<= (+ 119992 ~a23~0) 0)) (.cse18 (= ~a25~0 11)) (.cse7 (<= ~a23~0 278)) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse6 (= ~a25~0 13)) (.cse25 (<= ~a29~0 232)) (.cse11 (<= .cse26 0)) (.cse0 (= ~a4~0 0)) (.cse2 (<= ~a25~0 10)) (.cse24 (<= (+ ~a29~0 554036) 0)) (.cse17 (<= 261 ~a29~0)) (.cse19 (or (<= ~a29~0 277) .cse21 (not .cse12))) (.cse14 (< 306 ~a23~0)) (.cse9 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 (+ ~a29~0 28553)) .cse5) (and .cse6 .cse7 (<= 99912 ~a29~0) .cse8 .cse9) (and .cse2 .cse10 .cse9) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse11 .cse12 .cse0 .cse1) (and .cse6 .cse13 .cse14 .cse9) (and .cse12 .cse8 .cse15 .cse9 .cse16) (and .cse9 .cse5) (and .cse17 .cse0 .cse2 .cse13 .cse10) (and .cse18 .cse8 .cse9 (<= ~a23~0 312)) (and .cse19 .cse8 .cse9 .cse20 (or (not .cse6) .cse21)) (and .cse19 (or (and .cse0 .cse2 .cse20) (and .cse12 .cse17 .cse0)) .cse13) (and .cse11 .cse22 .cse9 .cse16) (and .cse6 .cse22 .cse9 .cse16) (and .cse12 .cse0 .cse15 .cse16) (and .cse6 .cse11 .cse0 .cse15 .cse16) (and .cse17 .cse0 .cse18 .cse13 .cse23) (and .cse18 .cse9 .cse16) (and .cse12 .cse0 .cse24) (and .cse2 .cse9 .cse16) (and .cse12 .cse1 (= ~a3~0 1) .cse9 (<= 312 ~a23~0) (= ~a8~0 15) (not (= ULTIMATE.start_calculate_output_~input 1))) (and .cse12 .cse10 .cse9 .cse25) (and .cse7 .cse12 .cse8 .cse9) (and .cse0 .cse8 .cse13 .cse10) (and .cse0 .cse18 .cse3 .cse23) (and .cse11 .cse0 .cse18 .cse1) (and .cse7 .cse1 .cse8 .cse9 .cse25) (and .cse6 .cse8 .cse9 .cse25) (and .cse11 .cse0 .cse2 .cse24) (and .cse12 .cse17 .cse19 .cse14 .cse9))))) [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,774 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,775 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse26 (+ ~a23~0 43))) (let ((.cse21 (<= ~a23~0 306)) (.cse12 (= ~a25~0 12)) (.cse8 (< 0 .cse26))) (let ((.cse4 (or (< 140 ~a29~0) .cse8 (not (= ~a25~0 9)))) (.cse5 (= ~a25~0 10)) (.cse20 (<= 99915 ~a29~0)) (.cse22 (<= ~a29~0 245)) (.cse15 (<= ~a29~0 274)) (.cse16 (<= 130 ~a29~0)) (.cse13 (<= ~a29~0 599998)) (.cse10 (<= ~a23~0 138)) (.cse3 (<= ~a29~0 220)) (.cse23 (<= (+ 119992 ~a23~0) 0)) (.cse18 (= ~a25~0 11)) (.cse7 (<= ~a23~0 278)) (.cse1 (<= (+ ~a29~0 22) 0)) (.cse6 (= ~a25~0 13)) (.cse25 (<= ~a29~0 232)) (.cse11 (<= .cse26 0)) (.cse0 (= ~a4~0 0)) (.cse2 (<= ~a25~0 10)) (.cse24 (<= (+ ~a29~0 554036) 0)) (.cse17 (<= 261 ~a29~0)) (.cse19 (or (<= ~a29~0 277) .cse21 (not .cse12))) (.cse14 (< 306 ~a23~0)) (.cse9 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 0 (+ ~a29~0 28553)) .cse5) (and .cse6 .cse7 (<= 99912 ~a29~0) .cse8 .cse9) (and .cse2 .cse10 .cse9) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 599772) 0) .cse4) (and .cse11 .cse12 .cse0 .cse1) (and .cse6 .cse13 .cse14 .cse9) (and .cse12 .cse8 .cse15 .cse9 .cse16) (and .cse9 .cse5) (and .cse17 .cse0 .cse2 .cse13 .cse10) (and .cse18 .cse8 .cse9 (<= ~a23~0 312)) (and .cse19 .cse8 .cse9 .cse20 (or (not .cse6) .cse21)) (and .cse19 (or (and .cse0 .cse2 .cse20) (and .cse12 .cse17 .cse0)) .cse13) (and .cse11 .cse22 .cse9 .cse16) (and .cse6 .cse22 .cse9 .cse16) (and .cse12 .cse0 .cse15 .cse16) (and .cse6 .cse11 .cse0 .cse15 .cse16) (and .cse17 .cse0 .cse18 .cse13 .cse23) (and .cse18 .cse9 .cse16) (and .cse12 .cse0 .cse24) (and .cse2 .cse9 .cse16) (and .cse12 .cse1 (= ~a3~0 1) .cse9 (<= 312 ~a23~0) (= ~a8~0 15) (not (= ULTIMATE.start_calculate_output_~input 1))) (and .cse12 .cse10 .cse9 .cse25) (and .cse7 .cse12 .cse8 .cse9) (and .cse0 .cse8 .cse13 .cse10) (and .cse0 .cse18 .cse3 .cse23) (and .cse11 .cse0 .cse18 .cse1) (and .cse7 .cse1 .cse8 .cse9 .cse25) (and .cse6 .cse8 .cse9 .cse25) (and .cse11 .cse0 .cse2 .cse24) (and .cse12 .cse17 .cse19 .cse14 .cse9))))) [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,776 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-08-29 04:36:44,777 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,778 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,779 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,780 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,781 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-08-29 04:36:44,782 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-08-29 04:36:44,783 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-08-29 04:36:44,784 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,785 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,786 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-08-29 04:36:44,787 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,788 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,789 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,790 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,791 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,792 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,793 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,794 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 04:36:44,795 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,796 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-08-29 04:36:44,797 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-08-29 04:36:44,798 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-08-29 04:36:44,798 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-08-29 04:36:44,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 04:36:44,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:36:44 BoogieIcfgContainer [2021-08-29 04:36:44,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 04:36:44,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 04:36:44,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 04:36:44,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 04:36:44,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:35:54" (3/4) ... [2021-08-29 04:36:44,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 04:36:44,834 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 04:36:44,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 04:36:44,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:36:44,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:36:44,907 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 04:36:44,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 04:36:44,907 INFO L158 Benchmark]: Toolchain (without parser) took 51810.24ms. Allocated memory was 56.6MB in the beginning and 954.2MB in the end (delta: 897.6MB). Free memory was 37.7MB in the beginning and 389.8MB in the end (delta: -352.1MB). Peak memory consumption was 547.0MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,907 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 04:36:44,907 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.22ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 37.5MB in the beginning and 52.1MB in the end (delta: -14.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.28ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 34.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,908 INFO L158 Benchmark]: Boogie Preprocessor took 116.03ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 36.9MB in the end (delta: -2.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,908 INFO L158 Benchmark]: RCFGBuilder took 607.45ms. Allocated memory was 75.5MB in the beginning and 142.6MB in the end (delta: 67.1MB). Free memory was 36.9MB in the beginning and 72.6MB in the end (delta: -35.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,908 INFO L158 Benchmark]: TraceAbstraction took 50291.21ms. Allocated memory was 142.6MB in the beginning and 954.2MB in the end (delta: 811.6MB). Free memory was 72.0MB in the beginning and 415.5MB in the end (delta: -343.5MB). Peak memory consumption was 615.1MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,908 INFO L158 Benchmark]: Witness Printer took 89.72ms. Allocated memory is still 954.2MB. Free memory was 415.5MB in the beginning and 389.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-08-29 04:36:44,909 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.22ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 37.5MB in the beginning and 52.1MB in the end (delta: -14.5MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.28ms. Allocated memory is still 75.5MB. Free memory was 52.1MB in the beginning and 34.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.03ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 36.9MB in the end (delta: -2.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * RCFGBuilder took 607.45ms. Allocated memory was 75.5MB in the beginning and 142.6MB in the end (delta: 67.1MB). Free memory was 36.9MB in the beginning and 72.6MB in the end (delta: -35.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * TraceAbstraction took 50291.21ms. Allocated memory was 142.6MB in the beginning and 954.2MB in the end (delta: 811.6MB). Free memory was 72.0MB in the beginning and 415.5MB in the end (delta: -343.5MB). Peak memory consumption was 615.1MB. Max. memory is 16.1GB. * Witness Printer took 89.72ms. Allocated memory is still 954.2MB. Free memory was 415.5MB in the beginning and 389.8MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50228.98ms, OverallIterations: 28, TraceHistogramMax: 6, EmptinessCheckTime: 224.47ms, AutomataDifference: 25559.40ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 8837.93ms, InitialAbstractionConstructionTime: 13.10ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5873 SdHoareTripleChecker+Valid, 22173.69ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5873 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 18104.68ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 865 mSDsCounter, 3698 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29433 IncrementalHoareTripleChecker+Invalid, 33131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3698 mSolverCounterUnsat, 0 mSDtfsCounter, 29433 mSolverCounterSat, 57.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1897 GetRequests, 1812 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 904.46ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17906occurred in iteration=27, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 3039.11ms AutomataMinimizationTime, 28 MinimizatonAttempts, 23215 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 277 NumberOfFragments, 1073 HoareAnnotationTreeSize, 3 FomulaSimplifications, 119158 FormulaSimplificationTreeSizeReduction, 2347.91ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 99300 FormulaSimplificationTreeSizeReductionInter, 6479.45ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 382.45ms SsaConstructionTime, 1216.09ms SatisfiabilityAnalysisTime, 9852.31ms InterpolantComputationTime, 12128 NumberOfCodeBlocks, 12128 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 12523 ConstructedInterpolants, 0 QuantifiedInterpolants, 43984 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1867 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 27 PerfectInterpolantSequences, 16196/16686 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9))) && 0 <= a29 + 28553) && a25 == 10) || ((((a25 == 13 && a23 <= 278) && 99912 <= a29) && 0 < a23 + 43) && a4 == 1)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || (((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && a23 + 599772 <= 0) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9)))) || (((a23 + 43 <= 0 && a25 == 12) && a4 == 0) && a29 + 22 <= 0)) || (((a25 == 13 && a29 <= 599998) && 306 < a23) && a4 == 1)) || ((((a25 == 12 && 0 < a23 + 43) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (a4 == 1 && a25 == 10)) || ((((261 <= a29 && a4 == 0) && a25 <= 10) && a29 <= 599998) && a23 <= 138)) || (((a25 == 11 && 0 < a23 + 43) && a4 == 1) && a23 <= 312)) || ((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && 0 < a23 + 43) && a4 == 1) && 99915 <= a29) && (!(a25 == 13) || a23 <= 306))) || ((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && (((a4 == 0 && a25 <= 10) && 99915 <= a29) || ((a25 == 12 && 261 <= a29) && a4 == 0))) && a29 <= 599998)) || (((a23 + 43 <= 0 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 13 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a29 <= 599998) && 119992 + a23 <= 0)) || ((a25 == 11 && a4 == 1) && 130 <= a29)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 <= 10 && a4 == 1) && 130 <= a29)) || ((((((a25 == 12 && a29 + 22 <= 0) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && !(input == 1))) || (((a25 == 12 && a23 <= 138) && a4 == 1) && a29 <= 232)) || (((a23 <= 278 && a25 == 12) && 0 < a23 + 43) && a4 == 1)) || (((a4 == 0 && 0 < a23 + 43) && a29 <= 599998) && a23 <= 138)) || (((a4 == 0 && a25 == 11) && a29 <= 220) && 119992 + a23 <= 0)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 + 22 <= 0)) || ((((a23 <= 278 && a29 + 22 <= 0) && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a25 == 13 && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 10) && a29 + 554036 <= 0)) || ((((a25 == 12 && 261 <= a29) && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 306 < a23) && a4 == 1) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9))) && 0 <= a29 + 28553) && a25 == 10) || ((((a25 == 13 && a23 <= 278) && 99912 <= a29) && 0 < a23 + 43) && a4 == 1)) || ((a25 <= 10 && a23 <= 138) && a4 == 1)) || (((((a4 == 0 && a29 + 22 <= 0) && a25 <= 10) && a29 <= 220) && a23 + 599772 <= 0) && ((140 < a29 || 0 < a23 + 43) || !(a25 == 9)))) || (((a23 + 43 <= 0 && a25 == 12) && a4 == 0) && a29 + 22 <= 0)) || (((a25 == 13 && a29 <= 599998) && 306 < a23) && a4 == 1)) || ((((a25 == 12 && 0 < a23 + 43) && a29 <= 274) && a4 == 1) && 130 <= a29)) || (a4 == 1 && a25 == 10)) || ((((261 <= a29 && a4 == 0) && a25 <= 10) && a29 <= 599998) && a23 <= 138)) || (((a25 == 11 && 0 < a23 + 43) && a4 == 1) && a23 <= 312)) || ((((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && 0 < a23 + 43) && a4 == 1) && 99915 <= a29) && (!(a25 == 13) || a23 <= 306))) || ((((a29 <= 277 || a23 <= 306) || !(a25 == 12)) && (((a4 == 0 && a25 <= 10) && 99915 <= a29) || ((a25 == 12 && 261 <= a29) && a4 == 0))) && a29 <= 599998)) || (((a23 + 43 <= 0 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 13 && a29 <= 245) && a4 == 1) && 130 <= a29)) || (((a25 == 12 && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((a25 == 13 && a23 + 43 <= 0) && a4 == 0) && a29 <= 274) && 130 <= a29)) || ((((261 <= a29 && a4 == 0) && a25 == 11) && a29 <= 599998) && 119992 + a23 <= 0)) || ((a25 == 11 && a4 == 1) && 130 <= a29)) || ((a25 == 12 && a4 == 0) && a29 + 554036 <= 0)) || ((a25 <= 10 && a4 == 1) && 130 <= a29)) || ((((((a25 == 12 && a29 + 22 <= 0) && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) && !(input == 1))) || (((a25 == 12 && a23 <= 138) && a4 == 1) && a29 <= 232)) || (((a23 <= 278 && a25 == 12) && 0 < a23 + 43) && a4 == 1)) || (((a4 == 0 && 0 < a23 + 43) && a29 <= 599998) && a23 <= 138)) || (((a4 == 0 && a25 == 11) && a29 <= 220) && 119992 + a23 <= 0)) || (((a23 + 43 <= 0 && a4 == 0) && a25 == 11) && a29 + 22 <= 0)) || ((((a23 <= 278 && a29 + 22 <= 0) && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a25 == 13 && 0 < a23 + 43) && a4 == 1) && a29 <= 232)) || (((a23 + 43 <= 0 && a4 == 0) && a25 <= 10) && a29 + 554036 <= 0)) || ((((a25 == 12 && 261 <= a29) && ((a29 <= 277 || a23 <= 306) || !(a25 == 12))) && 306 < a23) && a4 == 1) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-29 04:36:44,940 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...