./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label51.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 f42c9bf5e9178aa734a0f203b0a14c3218f112b3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 22:09:59,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 22:09:59,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 22:09:59,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 22:09:59,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 22:09:59,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 22:09:59,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 22:09:59,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 22:09:59,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 22:09:59,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 22:09:59,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 22:09:59,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 22:09:59,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 22:09:59,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 22:09:59,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 22:09:59,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 22:09:59,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 22:09:59,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 22:09:59,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 22:09:59,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 22:09:59,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 22:09:59,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 22:09:59,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 22:09:59,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 22:09:59,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 22:09:59,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 22:09:59,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 22:09:59,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 22:09:59,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 22:09:59,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 22:09:59,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 22:09:59,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 22:09:59,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 22:09:59,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 22:09:59,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 22:09:59,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 22:09:59,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 22:09:59,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 22:09:59,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 22:09:59,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 22:09:59,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 22:09:59,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 22:09:59,668 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 22:09:59,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 22:09:59,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 22:09:59,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 22:09:59,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 22:09:59,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 22:09:59,673 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 22:09:59,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 22:09:59,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 22:09:59,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 22:09:59,674 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 22:09:59,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 22:09:59,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 22:09:59,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 22:09:59,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 22:09:59,675 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 22:09:59,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 22:09:59,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 22:09:59,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 22:09:59,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 22:09:59,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 22:09:59,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 22:09:59,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 22:09:59,685 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 22:09:59,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 22:09:59,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 22:09:59,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 22:09:59,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 22:09:59,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 22:09:59,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 22:09:59,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f42c9bf5e9178aa734a0f203b0a14c3218f112b3 [2021-08-25 22:10:00,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 22:10:00,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 22:10:00,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 22:10:00,027 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 22:10:00,027 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 22:10:00,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2021-08-25 22:10:00,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd0a04e0/28056227e5514544be68f5fc4354c952/FLAGfcddf6aaa [2021-08-25 22:10:00,687 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 22:10:00,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2021-08-25 22:10:00,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd0a04e0/28056227e5514544be68f5fc4354c952/FLAGfcddf6aaa [2021-08-25 22:10:01,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cd0a04e0/28056227e5514544be68f5fc4354c952 [2021-08-25 22:10:01,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 22:10:01,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 22:10:01,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 22:10:01,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 22:10:01,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 22:10:01,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199b95af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01, skipping insertion in model container [2021-08-25 22:10:01,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 22:10:01,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 22:10:01,381 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2021-08-25 22:10:01,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 22:10:01,544 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 22:10:01,558 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2021-08-25 22:10:01,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 22:10:01,672 INFO L208 MainTranslator]: Completed translation [2021-08-25 22:10:01,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01 WrapperNode [2021-08-25 22:10:01,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 22:10:01,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 22:10:01,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 22:10:01,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 22:10:01,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 22:10:01,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 22:10:01,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 22:10:01,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 22:10:01,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 22:10:01,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 22:10:01,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 22:10:01,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 22:10:01,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (1/1) ... [2021-08-25 22:10:01,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 22:10:01,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:01,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 22:10:01,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 22:10:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 22:10:01,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 22:10:01,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 22:10:01,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 22:10:03,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 22:10:03,459 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 22:10:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:10:03 BoogieIcfgContainer [2021-08-25 22:10:03,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 22:10:03,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 22:10:03,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 22:10:03,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 22:10:03,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:10:01" (1/3) ... [2021-08-25 22:10:03,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447e748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:10:03, skipping insertion in model container [2021-08-25 22:10:03,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:10:01" (2/3) ... [2021-08-25 22:10:03,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@447e748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:10:03, skipping insertion in model container [2021-08-25 22:10:03,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:10:03" (3/3) ... [2021-08-25 22:10:03,470 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2021-08-25 22:10:03,475 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 22:10:03,475 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 22:10:03,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 22:10:03,532 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 22:10:03,533 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 22:10:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-25 22:10:03,561 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:03,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:03,563 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:03,568 INFO L82 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2021-08-25 22:10:03,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:03,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386272773] [2021-08-25 22:10:03,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:03,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:10:03,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:03,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386272773] [2021-08-25 22:10:03,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386272773] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:03,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:03,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 22:10:03,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300018791] [2021-08-25 22:10:03,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:03,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:03,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:03,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:03,852 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:05,241 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-08-25 22:10:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2021-08-25 22:10:05,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:05,267 INFO L225 Difference]: With dead ends: 685 [2021-08-25 22:10:05,268 INFO L226 Difference]: Without dead ends: 360 [2021-08-25 22:10:05,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:05,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-08-25 22:10:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-08-25 22:10:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:05,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-08-25 22:10:05,321 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 35 [2021-08-25 22:10:05,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:05,322 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-08-25 22:10:05,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-08-25 22:10:05,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-08-25 22:10:05,327 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:05,327 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:05,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 22:10:05,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:05,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:05,332 INFO L82 PathProgramCache]: Analyzing trace with hash 183125839, now seen corresponding path program 1 times [2021-08-25 22:10:05,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:05,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295034831] [2021-08-25 22:10:05,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:05,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:10:05,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:05,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295034831] [2021-08-25 22:10:05,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295034831] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:05,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:05,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:05,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954994769] [2021-08-25 22:10:05,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:10:05,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:10:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:05,516 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:06,916 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-08-25 22:10:06,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:10:06,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2021-08-25 22:10:06,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:06,924 INFO L225 Difference]: With dead ends: 1074 [2021-08-25 22:10:06,924 INFO L226 Difference]: Without dead ends: 716 [2021-08-25 22:10:06,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:10:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-08-25 22:10:06,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-08-25 22:10:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-08-25 22:10:06,953 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 114 [2021-08-25 22:10:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:06,953 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-08-25 22:10:06,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-08-25 22:10:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-08-25 22:10:06,958 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:06,958 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:06,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 22:10:06,959 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:06,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1801900176, now seen corresponding path program 1 times [2021-08-25 22:10:06,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:06,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040253633] [2021-08-25 22:10:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:06,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-08-25 22:10:07,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:07,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040253633] [2021-08-25 22:10:07,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040253633] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:07,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115626115] [2021-08-25 22:10:07,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:07,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:07,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:07,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:07,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 22:10:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:07,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:10:07,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-25 22:10:08,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115626115] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:08,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:08,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-08-25 22:10:08,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857522460] [2021-08-25 22:10:08,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:08,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:08,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:08,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:10:08,049 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:08,928 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2021-08-25 22:10:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:08,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 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 140 [2021-08-25 22:10:08,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:08,934 INFO L225 Difference]: With dead ends: 1252 [2021-08-25 22:10:08,934 INFO L226 Difference]: Without dead ends: 1250 [2021-08-25 22:10:08,935 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:10:08,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-08-25 22:10:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2021-08-25 22:10:08,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:08,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2021-08-25 22:10:08,958 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 140 [2021-08-25 22:10:08,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:08,958 INFO L470 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2021-08-25 22:10:08,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2021-08-25 22:10:08,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-08-25 22:10:08,964 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:08,965 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 22:10:08,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:09,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:09,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:09,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:09,182 INFO L82 PathProgramCache]: Analyzing trace with hash 689274588, now seen corresponding path program 1 times [2021-08-25 22:10:09,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:09,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097044875] [2021-08-25 22:10:09,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:09,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-25 22:10:09,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:09,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097044875] [2021-08-25 22:10:09,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097044875] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:09,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:09,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:09,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222834409] [2021-08-25 22:10:09,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:10:09,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:09,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:10:09,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:09,305 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:10,363 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2021-08-25 22:10:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:10:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2021-08-25 22:10:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:10,368 INFO L225 Difference]: With dead ends: 1993 [2021-08-25 22:10:10,368 INFO L226 Difference]: Without dead ends: 1072 [2021-08-25 22:10:10,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-08-25 22:10:10,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-08-25 22:10:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2021-08-25 22:10:10,388 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 194 [2021-08-25 22:10:10,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:10,388 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2021-08-25 22:10:10,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:10,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2021-08-25 22:10:10,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-08-25 22:10:10,391 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:10,391 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 22:10:10,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 22:10:10,392 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:10,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1077711776, now seen corresponding path program 1 times [2021-08-25 22:10:10,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:10,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058645844] [2021-08-25 22:10:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:10,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:10:10,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:10,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058645844] [2021-08-25 22:10:10,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058645844] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:10,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274587661] [2021-08-25 22:10:10,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:10,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:10,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:10,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:10,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 22:10:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:10,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:10:10,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-08-25 22:10:11,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274587661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:11,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:11,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-08-25 22:10:11,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783424010] [2021-08-25 22:10:11,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:11,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 22:10:11,790 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:12,581 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2021-08-25 22:10:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 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 206 [2021-08-25 22:10:12,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:12,587 INFO L225 Difference]: With dead ends: 2320 [2021-08-25 22:10:12,588 INFO L226 Difference]: Without dead ends: 1250 [2021-08-25 22:10:12,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 22:10:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-08-25 22:10:12,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2021-08-25 22:10:12,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:12,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2021-08-25 22:10:12,606 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 206 [2021-08-25 22:10:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:12,607 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2021-08-25 22:10:12,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:12,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2021-08-25 22:10:12,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-08-25 22:10:12,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:12,613 INFO L512 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-08-25 22:10:12,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:12,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:12,829 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 732384967, now seen corresponding path program 1 times [2021-08-25 22:10:12,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:12,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596240658] [2021-08-25 22:10:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:12,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:12,962 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 22:10:12,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:12,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596240658] [2021-08-25 22:10:12,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596240658] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:12,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:12,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:12,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413624363] [2021-08-25 22:10:12,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:12,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:12,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:12,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:12,968 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 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) [2021-08-25 22:10:13,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:13,794 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2021-08-25 22:10:13,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:13,795 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 209 [2021-08-25 22:10:13,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:13,801 INFO L225 Difference]: With dead ends: 2854 [2021-08-25 22:10:13,801 INFO L226 Difference]: Without dead ends: 1784 [2021-08-25 22:10:13,802 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-08-25 22:10:13,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-08-25 22:10:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:13,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2021-08-25 22:10:13,836 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 209 [2021-08-25 22:10:13,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:13,836 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2021-08-25 22:10:13,837 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) [2021-08-25 22:10:13,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2021-08-25 22:10:13,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-08-25 22:10:13,840 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:13,841 INFO L512 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-25 22:10:13,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 22:10:13,841 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:13,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:13,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1686277103, now seen corresponding path program 1 times [2021-08-25 22:10:13,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:13,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340179360] [2021-08-25 22:10:13,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:13,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-08-25 22:10:14,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:14,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340179360] [2021-08-25 22:10:14,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340179360] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:14,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:14,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:14,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208278814] [2021-08-25 22:10:14,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:10:14,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:14,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:10:14,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:14,010 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:14,858 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2021-08-25 22:10:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:10:14,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2021-08-25 22:10:14,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:14,864 INFO L225 Difference]: With dead ends: 3268 [2021-08-25 22:10:14,865 INFO L226 Difference]: Without dead ends: 1784 [2021-08-25 22:10:14,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-08-25 22:10:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2021-08-25 22:10:14,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2021-08-25 22:10:14,891 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 326 [2021-08-25 22:10:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:14,892 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2021-08-25 22:10:14,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2021-08-25 22:10:14,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-08-25 22:10:14,897 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:14,898 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:14,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 22:10:14,898 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:14,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:14,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1156793849, now seen corresponding path program 1 times [2021-08-25 22:10:14,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:14,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67338055] [2021-08-25 22:10:14,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:14,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:15,034 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:10:15,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:15,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67338055] [2021-08-25 22:10:15,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67338055] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:15,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:15,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:15,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107564805] [2021-08-25 22:10:15,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:15,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:15,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:15,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:15,037 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:15,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:15,797 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2021-08-25 22:10:15,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:15,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 421 [2021-08-25 22:10:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:15,805 INFO L225 Difference]: With dead ends: 3922 [2021-08-25 22:10:15,805 INFO L226 Difference]: Without dead ends: 2496 [2021-08-25 22:10:15,807 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-08-25 22:10:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2021-08-25 22:10:15,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2021-08-25 22:10:15,838 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 421 [2021-08-25 22:10:15,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:15,842 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2021-08-25 22:10:15,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:15,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2021-08-25 22:10:15,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2021-08-25 22:10:15,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:15,849 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:15,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-25 22:10:15,850 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:15,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:15,850 INFO L82 PathProgramCache]: Analyzing trace with hash 175456974, now seen corresponding path program 1 times [2021-08-25 22:10:15,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:15,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602547081] [2021-08-25 22:10:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:15,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:16,002 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:10:16,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:16,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602547081] [2021-08-25 22:10:16,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602547081] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:16,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:16,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:16,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387256885] [2021-08-25 22:10:16,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:16,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:16,005 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:16,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:16,699 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2021-08-25 22:10:16,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:16,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 428 [2021-08-25 22:10:16,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:16,708 INFO L225 Difference]: With dead ends: 4456 [2021-08-25 22:10:16,708 INFO L226 Difference]: Without dead ends: 2674 [2021-08-25 22:10:16,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:16,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-08-25 22:10:16,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2021-08-25 22:10:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0819304152637486) internal successors, (2892), 2673 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2892 transitions. [2021-08-25 22:10:16,750 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2892 transitions. Word has length 428 [2021-08-25 22:10:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:16,751 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2892 transitions. [2021-08-25 22:10:16,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2892 transitions. [2021-08-25 22:10:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2021-08-25 22:10:16,754 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:16,755 INFO L512 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:16,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 22:10:16,755 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:16,756 INFO L82 PathProgramCache]: Analyzing trace with hash 75719335, now seen corresponding path program 1 times [2021-08-25 22:10:16,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:16,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919282163] [2021-08-25 22:10:16,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:16,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-25 22:10:16,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:16,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919282163] [2021-08-25 22:10:16,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919282163] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:16,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:16,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:16,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499805028] [2021-08-25 22:10:16,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:16,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:16,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:16,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:16,918 INFO L87 Difference]: Start difference. First operand 2674 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:17,654 INFO L93 Difference]: Finished difference Result 6414 states and 7027 transitions. [2021-08-25 22:10:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:17,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 469 [2021-08-25 22:10:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:17,663 INFO L225 Difference]: With dead ends: 6414 [2021-08-25 22:10:17,663 INFO L226 Difference]: Without dead ends: 3920 [2021-08-25 22:10:17,665 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:17,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2021-08-25 22:10:17,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2021-08-25 22:10:17,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.077743474600056) internal successors, (3840), 3563 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2021-08-25 22:10:17,716 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 469 [2021-08-25 22:10:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:17,717 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2021-08-25 22:10:17,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2021-08-25 22:10:17,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2021-08-25 22:10:17,722 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:17,722 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:17,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 22:10:17,723 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:17,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:17,723 INFO L82 PathProgramCache]: Analyzing trace with hash -480601995, now seen corresponding path program 1 times [2021-08-25 22:10:17,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:17,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376893085] [2021-08-25 22:10:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:17,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 1034 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:18,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:18,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376893085] [2021-08-25 22:10:18,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376893085] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:18,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44382338] [2021-08-25 22:10:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:18,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:18,022 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:18,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-25 22:10:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:18,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:10:18,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2021-08-25 22:10:20,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44382338] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:20,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:20,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 22:10:20,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800079775] [2021-08-25 22:10:20,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:20,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:20,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:20,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:20,801 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:21,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:21,519 INFO L93 Difference]: Finished difference Result 7660 states and 8269 transitions. [2021-08-25 22:10:21,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:21,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 [2021-08-25 22:10:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:21,530 INFO L225 Difference]: With dead ends: 7660 [2021-08-25 22:10:21,530 INFO L226 Difference]: Without dead ends: 3564 [2021-08-25 22:10:21,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:21,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-08-25 22:10:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2021-08-25 22:10:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0723417524165888) internal successors, (3439), 3207 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3439 transitions. [2021-08-25 22:10:21,573 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3439 transitions. Word has length 614 [2021-08-25 22:10:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:21,574 INFO L470 AbstractCegarLoop]: Abstraction has 3208 states and 3439 transitions. [2021-08-25 22:10:21,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:21,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3439 transitions. [2021-08-25 22:10:21,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2021-08-25 22:10:21,579 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:21,579 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:21,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:21,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:21,793 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:21,793 INFO L82 PathProgramCache]: Analyzing trace with hash -265669101, now seen corresponding path program 1 times [2021-08-25 22:10:21,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:21,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426787871] [2021-08-25 22:10:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:21,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 1089 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:22,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:22,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426787871] [2021-08-25 22:10:22,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426787871] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:22,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378515781] [2021-08-25 22:10:22,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:22,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:22,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:22,088 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:22,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-25 22:10:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:10:22,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2021-08-25 22:10:25,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378515781] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:25,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:25,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 22:10:25,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409659746] [2021-08-25 22:10:25,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:25,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:25,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:25,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:25,272 INFO L87 Difference]: Start difference. First operand 3208 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:25,898 INFO L93 Difference]: Finished difference Result 6770 states and 7307 transitions. [2021-08-25 22:10:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:25,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 626 [2021-08-25 22:10:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:25,909 INFO L225 Difference]: With dead ends: 6770 [2021-08-25 22:10:25,909 INFO L226 Difference]: Without dead ends: 3742 [2021-08-25 22:10:25,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-08-25 22:10:25,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-08-25 22:10:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.06794682422452) internal successors, (3615), 3385 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3615 transitions. [2021-08-25 22:10:25,960 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3615 transitions. Word has length 626 [2021-08-25 22:10:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:25,961 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3615 transitions. [2021-08-25 22:10:25,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3615 transitions. [2021-08-25 22:10:25,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2021-08-25 22:10:25,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:25,967 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:25,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:26,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:26,181 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:26,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1547257260, now seen corresponding path program 1 times [2021-08-25 22:10:26,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:26,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750510631] [2021-08-25 22:10:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:26,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:26,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1165 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:26,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:26,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750510631] [2021-08-25 22:10:26,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750510631] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:26,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008930984] [2021-08-25 22:10:26,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:26,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:26,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:26,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-25 22:10:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:27,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 22:10:27,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:31,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-08-25 22:10:31,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008930984] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:31,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:31,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 22:10:31,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095694163] [2021-08-25 22:10:31,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:31,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:31,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:31,142 INFO L87 Difference]: Start difference. First operand 3386 states and 3615 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:31,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:31,769 INFO L93 Difference]: Finished difference Result 6770 states and 7232 transitions. [2021-08-25 22:10:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:31,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 645 [2021-08-25 22:10:31,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:31,781 INFO L225 Difference]: With dead ends: 6770 [2021-08-25 22:10:31,781 INFO L226 Difference]: Without dead ends: 3386 [2021-08-25 22:10:31,785 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 46.5ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:10:31,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-08-25 22:10:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2021-08-25 22:10:31,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0596750369276218) internal successors, (3587), 3385 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3587 transitions. [2021-08-25 22:10:31,836 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3587 transitions. Word has length 645 [2021-08-25 22:10:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:31,837 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3587 transitions. [2021-08-25 22:10:31,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3587 transitions. [2021-08-25 22:10:31,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2021-08-25 22:10:31,844 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:31,845 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:31,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:32,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-25 22:10:32,061 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:32,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:32,062 INFO L82 PathProgramCache]: Analyzing trace with hash -362013204, now seen corresponding path program 1 times [2021-08-25 22:10:32,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:32,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963669461] [2021-08-25 22:10:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:32,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:32,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:32,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963669461] [2021-08-25 22:10:32,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963669461] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:32,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458254676] [2021-08-25 22:10:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:32,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:32,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:32,317 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:32,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-25 22:10:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:34,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:10:34,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2021-08-25 22:10:36,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458254676] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:36,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:10:36,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-25 22:10:36,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529078946] [2021-08-25 22:10:36,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:36,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:10:36,867 INFO L87 Difference]: Start difference. First operand 3386 states and 3587 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) [2021-08-25 22:10:37,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:37,464 INFO L93 Difference]: Finished difference Result 7482 states and 7950 transitions. [2021-08-25 22:10:37,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:37,465 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 790 [2021-08-25 22:10:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:37,475 INFO L225 Difference]: With dead ends: 7482 [2021-08-25 22:10:37,476 INFO L226 Difference]: Without dead ends: 4276 [2021-08-25 22:10:37,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:10:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2021-08-25 22:10:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2021-08-25 22:10:37,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0561386380278253) internal successors, (4327), 4097 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4327 transitions. [2021-08-25 22:10:37,529 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4327 transitions. Word has length 790 [2021-08-25 22:10:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:37,530 INFO L470 AbstractCegarLoop]: Abstraction has 4098 states and 4327 transitions. [2021-08-25 22:10:37,531 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) [2021-08-25 22:10:37,531 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4327 transitions. [2021-08-25 22:10:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-08-25 22:10:37,538 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:37,539 INFO L512 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:37,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:37,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:37,753 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:37,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:37,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1645945781, now seen corresponding path program 1 times [2021-08-25 22:10:37,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:37,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518038930] [2021-08-25 22:10:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:37,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:38,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:38,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:38,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518038930] [2021-08-25 22:10:38,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518038930] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:38,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926234458] [2021-08-25 22:10:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:38,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:38,016 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:38,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-25 22:10:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:40,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-25 22:10:40,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:10:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2021-08-25 22:10:43,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926234458] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:43,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 22:10:43,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-25 22:10:43,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140594221] [2021-08-25 22:10:43,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:10:43,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:43,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:10:43,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:43,219 INFO L87 Difference]: Start difference. First operand 4098 states and 4327 transitions. Second operand has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:44,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:44,076 INFO L93 Difference]: Finished difference Result 9086 states and 9600 transitions. [2021-08-25 22:10:44,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:10:44,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 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 819 [2021-08-25 22:10:44,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:44,103 INFO L225 Difference]: With dead ends: 9086 [2021-08-25 22:10:44,103 INFO L226 Difference]: Without dead ends: 5168 [2021-08-25 22:10:44,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 820 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:10:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5168 states. [2021-08-25 22:10:44,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5168 to 4810. [2021-08-25 22:10:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0526096901642754) internal successors, (5062), 4809 states have internal predecessors, (5062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5062 transitions. [2021-08-25 22:10:44,157 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5062 transitions. Word has length 819 [2021-08-25 22:10:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:44,158 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 5062 transitions. [2021-08-25 22:10:44,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5062 transitions. [2021-08-25 22:10:44,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2021-08-25 22:10:44,167 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:44,167 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:10:44,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-25 22:10:44,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:44,389 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:44,389 INFO L82 PathProgramCache]: Analyzing trace with hash -175681709, now seen corresponding path program 1 times [2021-08-25 22:10:44,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:44,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707805616] [2021-08-25 22:10:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:44,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:44,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:44,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2484 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-08-25 22:10:44,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:44,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707805616] [2021-08-25 22:10:44,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707805616] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:10:44,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:10:44,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:10:44,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144324186] [2021-08-25 22:10:44,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:10:44,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:10:44,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:10:44,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:44,640 INFO L87 Difference]: Start difference. First operand 4810 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:45,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:10:45,259 INFO L93 Difference]: Finished difference Result 9796 states and 10340 transitions. [2021-08-25 22:10:45,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:10:45,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 881 [2021-08-25 22:10:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:10:45,284 INFO L225 Difference]: With dead ends: 9796 [2021-08-25 22:10:45,284 INFO L226 Difference]: Without dead ends: 5166 [2021-08-25 22:10:45,288 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:10:45,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-08-25 22:10:45,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2021-08-25 22:10:45,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.047434656340755) internal successors, (5410), 5165 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:45,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5410 transitions. [2021-08-25 22:10:45,343 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5410 transitions. Word has length 881 [2021-08-25 22:10:45,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:10:45,343 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5410 transitions. [2021-08-25 22:10:45,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:10:45,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5410 transitions. [2021-08-25 22:10:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2021-08-25 22:10:45,353 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:10:45,353 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 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, 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] [2021-08-25 22:10:45,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-25 22:10:45,354 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:10:45,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:10:45,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1535028442, now seen corresponding path program 1 times [2021-08-25 22:10:45,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:10:45,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956970202] [2021-08-25 22:10:45,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:45,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:10:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1671 proven. 93 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2021-08-25 22:10:45,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:10:45,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956970202] [2021-08-25 22:10:45,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956970202] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:10:45,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720777620] [2021-08-25 22:10:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:10:45,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:10:45,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:10:45,700 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:10:45,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-25 22:10:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:10:48,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-25 22:10:48,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:11:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1766 proven. 266 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2021-08-25 22:11:00,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720777620] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:11:00,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-25 22:11:00,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2021-08-25 22:11:00,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559908226] [2021-08-25 22:11:00,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-25 22:11:00,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:00,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-25 22:11:00,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-08-25 22:11:00,618 INFO L87 Difference]: Start difference. First operand 5166 states and 5410 transitions. Second operand has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:03,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:03,334 INFO L93 Difference]: Finished difference Result 10752 states and 11258 transitions. [2021-08-25 22:11:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-25 22:11:03,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 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 899 [2021-08-25 22:11:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:03,344 INFO L225 Difference]: With dead ends: 10752 [2021-08-25 22:11:03,345 INFO L226 Difference]: Without dead ends: 5404 [2021-08-25 22:11:03,350 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 895 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 250.6ms TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-08-25 22:11:03,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5404 states. [2021-08-25 22:11:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5404 to 5166. [2021-08-25 22:11:03,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0346563407550824) internal successors, (5344), 5165 states have internal predecessors, (5344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:03,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5344 transitions. [2021-08-25 22:11:03,411 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5344 transitions. Word has length 899 [2021-08-25 22:11:03,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:03,412 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5344 transitions. [2021-08-25 22:11:03,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 100.11111111111111) internal successors, (901), 8 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5344 transitions. [2021-08-25 22:11:03,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2021-08-25 22:11:03,422 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:03,423 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:03,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-25 22:11:03,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-25 22:11:03,649 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:03,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2145794894, now seen corresponding path program 1 times [2021-08-25 22:11:03,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:03,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565106917] [2021-08-25 22:11:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:03,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2021-08-25 22:11:04,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:04,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565106917] [2021-08-25 22:11:04,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565106917] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:04,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:04,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:11:04,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134922587] [2021-08-25 22:11:04,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:11:04,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:04,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:11:04,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:04,025 INFO L87 Difference]: Start difference. First operand 5166 states and 5344 transitions. Second operand has 4 states, 4 states have (on average 54.5) 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) [2021-08-25 22:11:04,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:04,671 INFO L93 Difference]: Finished difference Result 10014 states and 10361 transitions. [2021-08-25 22:11:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:11:04,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) 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 1027 [2021-08-25 22:11:04,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:04,680 INFO L225 Difference]: With dead ends: 10014 [2021-08-25 22:11:04,680 INFO L226 Difference]: Without dead ends: 4988 [2021-08-25 22:11:04,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:04,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-08-25 22:11:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-08-25 22:11:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.03308602366152) internal successors, (5152), 4987 states have internal predecessors, (5152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5152 transitions. [2021-08-25 22:11:04,740 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5152 transitions. Word has length 1027 [2021-08-25 22:11:04,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:04,741 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5152 transitions. [2021-08-25 22:11:04,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) 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) [2021-08-25 22:11:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5152 transitions. [2021-08-25 22:11:04,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2021-08-25 22:11:04,797 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:04,798 INFO L512 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:04,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-25 22:11:04,798 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:04,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:04,798 INFO L82 PathProgramCache]: Analyzing trace with hash 538441961, now seen corresponding path program 1 times [2021-08-25 22:11:04,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:04,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773140937] [2021-08-25 22:11:04,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:04,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2021-08-25 22:11:05,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:05,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773140937] [2021-08-25 22:11:05,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773140937] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:11:05,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545944810] [2021-08-25 22:11:05,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:05,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:11:05,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:11:05,157 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:11:05,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-25 22:11:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:09,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-25 22:11:09,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:11:13,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2021-08-25 22:11:13,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545944810] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:13,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:11:13,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-08-25 22:11:13,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412998291] [2021-08-25 22:11:13,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:11:13,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:13,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:11:13,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:11:13,435 INFO L87 Difference]: Start difference. First operand 4988 states and 5152 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:14,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:14,328 INFO L93 Difference]: Finished difference Result 10152 states and 10493 transitions. [2021-08-25 22:11:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:11:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 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 1032 [2021-08-25 22:11:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:14,335 INFO L225 Difference]: With dead ends: 10152 [2021-08-25 22:11:14,335 INFO L226 Difference]: Without dead ends: 5344 [2021-08-25 22:11:14,339 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 28.0ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:11:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-08-25 22:11:14,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-08-25 22:11:14,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0323330106485964) internal successors, (5332), 5165 states have internal predecessors, (5332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5332 transitions. [2021-08-25 22:11:14,395 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5332 transitions. Word has length 1032 [2021-08-25 22:11:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:14,396 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5332 transitions. [2021-08-25 22:11:14,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5332 transitions. [2021-08-25 22:11:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2021-08-25 22:11:14,406 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:14,406 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2021-08-25 22:11:14,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-25 22:11:14,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:11:14,633 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:14,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1566111157, now seen corresponding path program 1 times [2021-08-25 22:11:14,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:14,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708376128] [2021-08-25 22:11:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:14,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3154 backedges. 1898 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2021-08-25 22:11:14,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:14,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708376128] [2021-08-25 22:11:14,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708376128] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:14,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:14,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:11:14,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696674947] [2021-08-25 22:11:14,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:11:14,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:11:14,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:14,945 INFO L87 Difference]: Start difference. First operand 5166 states and 5332 transitions. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:15,473 INFO L93 Difference]: Finished difference Result 10152 states and 10483 transitions. [2021-08-25 22:11:15,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:11:15,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 1034 [2021-08-25 22:11:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:15,480 INFO L225 Difference]: With dead ends: 10152 [2021-08-25 22:11:15,481 INFO L226 Difference]: Without dead ends: 5166 [2021-08-25 22:11:15,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:15,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-08-25 22:11:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2021-08-25 22:11:15,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0300782033286544) internal successors, (5137), 4987 states have internal predecessors, (5137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5137 transitions. [2021-08-25 22:11:15,538 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5137 transitions. Word has length 1034 [2021-08-25 22:11:15,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:15,539 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5137 transitions. [2021-08-25 22:11:15,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:15,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5137 transitions. [2021-08-25 22:11:15,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1392 [2021-08-25 22:11:15,554 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:15,555 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:15,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-25 22:11:15,555 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:15,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1049269503, now seen corresponding path program 1 times [2021-08-25 22:11:15,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:15,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706599983] [2021-08-25 22:11:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:15,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5939 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2021-08-25 22:11:16,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:16,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706599983] [2021-08-25 22:11:16,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706599983] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:16,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:16,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:11:16,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747141413] [2021-08-25 22:11:16,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:11:16,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:11:16,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:16,034 INFO L87 Difference]: Start difference. First operand 4988 states and 5137 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:16,644 INFO L93 Difference]: Finished difference Result 9796 states and 10093 transitions. [2021-08-25 22:11:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:11:16,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1391 [2021-08-25 22:11:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:16,648 INFO L225 Difference]: With dead ends: 9796 [2021-08-25 22:11:16,648 INFO L226 Difference]: Without dead ends: 4988 [2021-08-25 22:11:16,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:16,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-08-25 22:11:16,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2021-08-25 22:11:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0272709043513135) internal successors, (5123), 4987 states have internal predecessors, (5123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5123 transitions. [2021-08-25 22:11:16,694 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5123 transitions. Word has length 1391 [2021-08-25 22:11:16,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:16,695 INFO L470 AbstractCegarLoop]: Abstraction has 4988 states and 5123 transitions. [2021-08-25 22:11:16,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:16,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5123 transitions. [2021-08-25 22:11:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2021-08-25 22:11:16,714 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:16,715 INFO L512 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:16,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-25 22:11:16,715 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:16,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:16,716 INFO L82 PathProgramCache]: Analyzing trace with hash -172671030, now seen corresponding path program 1 times [2021-08-25 22:11:16,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:16,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957325778] [2021-08-25 22:11:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:16,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4927 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2021-08-25 22:11:17,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:17,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957325778] [2021-08-25 22:11:17,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957325778] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:17,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:17,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-25 22:11:17,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885254583] [2021-08-25 22:11:17,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 22:11:17,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 22:11:17,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:11:17,569 INFO L87 Difference]: Start difference. First operand 4988 states and 5123 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:19,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:19,506 INFO L93 Difference]: Finished difference Result 11949 states and 12300 transitions. [2021-08-25 22:11:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 22:11:19,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 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 1646 [2021-08-25 22:11:19,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:19,513 INFO L225 Difference]: With dead ends: 11949 [2021-08-25 22:11:19,513 INFO L226 Difference]: Without dead ends: 6592 [2021-08-25 22:11:19,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:11:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6592 states. [2021-08-25 22:11:19,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6592 to 5878. [2021-08-25 22:11:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0200782712268164) internal successors, (5995), 5877 states have internal predecessors, (5995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:19,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 5995 transitions. [2021-08-25 22:11:19,564 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 5995 transitions. Word has length 1646 [2021-08-25 22:11:19,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:19,566 INFO L470 AbstractCegarLoop]: Abstraction has 5878 states and 5995 transitions. [2021-08-25 22:11:19,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:19,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 5995 transitions. [2021-08-25 22:11:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2021-08-25 22:11:19,598 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:19,599 INFO L512 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:19,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-25 22:11:19,599 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:19,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:19,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1952577186, now seen corresponding path program 1 times [2021-08-25 22:11:19,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:19,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332019557] [2021-08-25 22:11:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:19,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 2756 proven. 1045 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2021-08-25 22:11:20,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:20,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332019557] [2021-08-25 22:11:20,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332019557] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 22:11:20,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615668909] [2021-08-25 22:11:20,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:20,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 22:11:20,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 22:11:20,297 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 22:11:20,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-25 22:11:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:25,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 22:11:25,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 22:11:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 3801 proven. 0 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2021-08-25 22:11:31,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615668909] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:31,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 22:11:31,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-25 22:11:31,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774625591] [2021-08-25 22:11:31,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:11:31,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:31,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:11:31,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 22:11:31,527 INFO L87 Difference]: Start difference. First operand 5878 states and 5995 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:32,034 INFO L93 Difference]: Finished difference Result 11754 states and 11988 transitions. [2021-08-25 22:11:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:11:32,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1742 [2021-08-25 22:11:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:32,039 INFO L225 Difference]: With dead ends: 11754 [2021-08-25 22:11:32,039 INFO L226 Difference]: Without dead ends: 4988 [2021-08-25 22:11:32,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1741 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-25 22:11:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-08-25 22:11:32,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2021-08-25 22:11:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.01621958827199) internal successors, (4887), 4809 states have internal predecessors, (4887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:32,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4887 transitions. [2021-08-25 22:11:32,073 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4887 transitions. Word has length 1742 [2021-08-25 22:11:32,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:32,073 INFO L470 AbstractCegarLoop]: Abstraction has 4810 states and 4887 transitions. [2021-08-25 22:11:32,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4887 transitions. [2021-08-25 22:11:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2021-08-25 22:11:32,093 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:32,093 INFO L512 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:32,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-25 22:11:32,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-08-25 22:11:32,295 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:32,296 INFO L82 PathProgramCache]: Analyzing trace with hash -354861792, now seen corresponding path program 1 times [2021-08-25 22:11:32,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:32,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408445898] [2021-08-25 22:11:32,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:32,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2021-08-25 22:11:32,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:32,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408445898] [2021-08-25 22:11:32,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408445898] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:32,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:32,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 22:11:32,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198316577] [2021-08-25 22:11:32,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:11:32,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:11:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:32,959 INFO L87 Difference]: Start difference. First operand 4810 states and 4887 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:33,817 INFO L93 Difference]: Finished difference Result 11220 states and 11418 transitions. [2021-08-25 22:11:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:11:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1813 [2021-08-25 22:11:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:33,823 INFO L225 Difference]: With dead ends: 11220 [2021-08-25 22:11:33,823 INFO L226 Difference]: Without dead ends: 6590 [2021-08-25 22:11:33,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2021-08-25 22:11:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 5700. [2021-08-25 22:11:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0175469380593087) internal successors, (5799), 5699 states have internal predecessors, (5799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5799 transitions. [2021-08-25 22:11:33,866 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5799 transitions. Word has length 1813 [2021-08-25 22:11:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:33,867 INFO L470 AbstractCegarLoop]: Abstraction has 5700 states and 5799 transitions. [2021-08-25 22:11:33,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5799 transitions. [2021-08-25 22:11:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2021-08-25 22:11:33,890 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:33,891 INFO L512 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:33,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-25 22:11:33,891 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 58677289, now seen corresponding path program 1 times [2021-08-25 22:11:33,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:33,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509593861] [2021-08-25 22:11:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:33,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:34,743 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2021-08-25 22:11:34,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:34,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509593861] [2021-08-25 22:11:34,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509593861] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:34,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:34,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-25 22:11:34,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944724491] [2021-08-25 22:11:34,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 22:11:34,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 22:11:34,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:34,746 INFO L87 Difference]: Start difference. First operand 5700 states and 5799 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:35,309 INFO L93 Difference]: Finished difference Result 11220 states and 11406 transitions. [2021-08-25 22:11:35,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-25 22:11:35,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 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 2115 [2021-08-25 22:11:35,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:35,314 INFO L225 Difference]: With dead ends: 11220 [2021-08-25 22:11:35,314 INFO L226 Difference]: Without dead ends: 5700 [2021-08-25 22:11:35,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-25 22:11:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2021-08-25 22:11:35,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2021-08-25 22:11:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0153471832303949) internal successors, (5425), 5343 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5425 transitions. [2021-08-25 22:11:35,346 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5425 transitions. Word has length 2115 [2021-08-25 22:11:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:35,347 INFO L470 AbstractCegarLoop]: Abstraction has 5344 states and 5425 transitions. [2021-08-25 22:11:35,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5425 transitions. [2021-08-25 22:11:35,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2313 [2021-08-25 22:11:35,374 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:35,375 INFO L512 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:35,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-25 22:11:35,375 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1798942431, now seen corresponding path program 1 times [2021-08-25 22:11:35,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:35,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126729717] [2021-08-25 22:11:35,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:35,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16826 backedges. 2513 proven. 0 refuted. 0 times theorem prover too weak. 14313 trivial. 0 not checked. [2021-08-25 22:11:36,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:36,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126729717] [2021-08-25 22:11:36,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126729717] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:36,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:36,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 22:11:36,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122454303] [2021-08-25 22:11:36,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 22:11:36,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:36,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 22:11:36,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:36,552 INFO L87 Difference]: Start difference. First operand 5344 states and 5425 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:37,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:37,070 INFO L93 Difference]: Finished difference Result 10330 states and 10490 transitions. [2021-08-25 22:11:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 22:11:37,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 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 2312 [2021-08-25 22:11:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:37,074 INFO L225 Difference]: With dead ends: 10330 [2021-08-25 22:11:37,074 INFO L226 Difference]: Without dead ends: 5344 [2021-08-25 22:11:37,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 22:11:37,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2021-08-25 22:11:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2021-08-25 22:11:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0133591481122943) internal successors, (5234), 5165 states have internal predecessors, (5234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:37,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5234 transitions. [2021-08-25 22:11:37,127 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5234 transitions. Word has length 2312 [2021-08-25 22:11:37,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:37,129 INFO L470 AbstractCegarLoop]: Abstraction has 5166 states and 5234 transitions. [2021-08-25 22:11:37,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5234 transitions. [2021-08-25 22:11:37,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2730 [2021-08-25 22:11:37,190 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 22:11:37,191 INFO L512 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 14, 14, 14, 14, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 22:11:37,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-25 22:11:37,191 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 22:11:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 22:11:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1902740227, now seen corresponding path program 1 times [2021-08-25 22:11:37,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 22:11:37,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664176523] [2021-08-25 22:11:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 22:11:37,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 22:11:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 22:11:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 23424 backedges. 11345 proven. 0 refuted. 0 times theorem prover too weak. 12079 trivial. 0 not checked. [2021-08-25 22:11:38,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 22:11:38,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664176523] [2021-08-25 22:11:38,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664176523] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 22:11:38,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 22:11:38,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-25 22:11:38,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949670171] [2021-08-25 22:11:38,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-25 22:11:38,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 22:11:38,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-25 22:11:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-25 22:11:38,459 INFO L87 Difference]: Start difference. First operand 5166 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:39,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 22:11:39,590 INFO L93 Difference]: Finished difference Result 9124 states and 9244 transitions. [2021-08-25 22:11:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 22:11:39,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 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 2729 [2021-08-25 22:11:39,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 22:11:39,592 INFO L225 Difference]: With dead ends: 9124 [2021-08-25 22:11:39,592 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 22:11:39,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-25 22:11:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 22:11:39,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 22:11:39,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 22:11:39,597 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2729 [2021-08-25 22:11:39,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 22:11:39,597 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 22:11:39,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 22:11:39,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 22:11:39,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 22:11:39,600 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 22:11:39,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-25 22:11:39,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 22:11:39,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:11:39,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:11:39,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,813 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-08-25 22:11:43,814 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-08-25 22:11:43,815 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-08-25 22:11:43,816 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,817 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-08-25 22:11:43,818 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,819 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,820 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-08-25 22:11:43,821 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-08-25 22:11:43,822 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,823 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2021-08-25 22:11:43,824 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-08-25 22:11:43,825 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,826 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-08-25 22:11:43,827 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-08-25 22:11:43,828 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,829 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-08-25 22:11:43,830 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-25 22:11:43,831 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,832 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-08-25 22:11:43,833 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-08-25 22:11:43,834 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-08-25 22:11:43,835 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,835 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,835 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse22 (<= (+ 49 ~a12~0) 0))) (let ((.cse1 (<= ~a15~0 8)) (.cse4 (not (= 5 ~a15~0))) (.cse5 (= 7 ~a15~0)) (.cse17 (<= 9 ~a21~0)) (.cse9 (<= ~a15~0 7)) (.cse2 (<= 20 ~a12~0)) (.cse3 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 599999)) (.cse16 (<= 95382 ~a12~0)) (.cse11 (+ ~a12~0 43)) (.cse20 (<= 8 ~a21~0)) (.cse21 (<= ~a21~0 8)) (.cse13 (= ~a21~0 9)) (.cse12 (= ~a15~0 9)) (.cse26 (< 80 ~a12~0)) (.cse14 (not (= 5 ULTIMATE.start_calculate_output_~input))) (.cse25 (<= ~a12~0 586307)) (.cse18 (<= ~a12~0 11)) (.cse8 (<= 7 ~a21~0)) (.cse10 (<= ~a21~0 7)) (.cse23 (<= 0 (+ 41 ~a12~0))) (.cse19 (= ~a15~0 8)) (.cse6 (let ((.cse27 (<= ~a15~0 6))) (or (and .cse0 .cse27) (and .cse27 .cse22)))) (.cse7 (<= ~a21~0 6)) (.cse24 (<= (+ ~a12~0 9352) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 103531 ~a12~0) .cse0 .cse5) (and .cse6 .cse0) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse8 .cse9 .cse10) (and (<= .cse11 0) .cse0 .cse12 .cse3) (and .cse0 .cse1 .cse9 .cse3 .cse4) (and (<= ~a12~0 80) .cse0 .cse13 (< 11 ~a12~0) .cse5) (and .cse0 .cse13 .cse12 .cse14 .cse15 .cse16) (and .cse17 .cse0 .cse9 .cse16) (and .cse18 .cse0 .cse3 .cse19) (and (<= ~a12~0 73282) .cse0 .cse2 .cse20 .cse21 .cse19) (and .cse17 .cse0 .cse2 (<= ~a12~0 76) .cse19) (and .cse0 .cse9 .cse22 .cse21) (and .cse18 .cse0 .cse12 .cse3 .cse23) (and .cse0 .cse9 (<= (+ ~a12~0 42) 0) .cse20 .cse21) (and .cse0 .cse12 .cse24 .cse20 .cse21) (and .cse18 .cse0 .cse7 .cse9 .cse23) (and .cse0 .cse8 .cse12 .cse2 .cse21 .cse25) (and .cse0 .cse12 .cse26 .cse3 .cse15) (and .cse0 .cse12 .cse21 .cse25 .cse16) (and .cse0 .cse8 .cse12 .cse21 .cse15 .cse16) (and .cse18 .cse0 .cse13 .cse14 (< 0 .cse11) .cse19) (and .cse18 .cse0 .cse12 .cse20 .cse21 .cse23) (and .cse0 .cse13 .cse12 .cse26 .cse14 .cse25) (and .cse0 .cse8 .cse10 .cse22 .cse19) (and .cse18 .cse0 .cse8 .cse10 .cse23 .cse19) (and .cse6 .cse7 .cse24)))) [2021-08-25 22:11:43,835 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-08-25 22:11:43,835 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,836 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-08-25 22:11:43,837 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-08-25 22:11:43,838 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,839 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse22 (<= (+ 49 ~a12~0) 0))) (let ((.cse1 (<= ~a15~0 8)) (.cse4 (not (= 5 ~a15~0))) (.cse5 (= 7 ~a15~0)) (.cse17 (<= 9 ~a21~0)) (.cse9 (<= ~a15~0 7)) (.cse2 (<= 20 ~a12~0)) (.cse3 (<= 10 ~a21~0)) (.cse15 (<= ~a12~0 599999)) (.cse16 (<= 95382 ~a12~0)) (.cse11 (+ ~a12~0 43)) (.cse20 (<= 8 ~a21~0)) (.cse21 (<= ~a21~0 8)) (.cse13 (= ~a21~0 9)) (.cse12 (= ~a15~0 9)) (.cse26 (< 80 ~a12~0)) (.cse14 (not (= 5 ULTIMATE.start_calculate_output_~input))) (.cse25 (<= ~a12~0 586307)) (.cse18 (<= ~a12~0 11)) (.cse8 (<= 7 ~a21~0)) (.cse10 (<= ~a21~0 7)) (.cse23 (<= 0 (+ 41 ~a12~0))) (.cse19 (= ~a15~0 8)) (.cse6 (let ((.cse27 (<= ~a15~0 6))) (or (and .cse0 .cse27) (and .cse27 .cse22)))) (.cse7 (<= ~a21~0 6)) (.cse24 (<= (+ ~a12~0 9352) 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 103531 ~a12~0) .cse0 .cse5) (and .cse6 .cse0) (and .cse0 .cse1 .cse2 .cse7) (and .cse0 .cse8 .cse9 .cse10) (and (<= .cse11 0) .cse0 .cse12 .cse3) (and .cse0 .cse1 .cse9 .cse3 .cse4) (and (<= ~a12~0 80) .cse0 .cse13 (< 11 ~a12~0) .cse5) (and .cse0 .cse13 .cse12 .cse14 .cse15 .cse16) (and .cse17 .cse0 .cse9 .cse16) (and .cse18 .cse0 .cse3 .cse19) (and (<= ~a12~0 73282) .cse0 .cse2 .cse20 .cse21 .cse19) (and .cse17 .cse0 .cse2 (<= ~a12~0 76) .cse19) (and .cse0 .cse9 .cse22 .cse21) (and .cse18 .cse0 .cse12 .cse3 .cse23) (and .cse0 .cse9 (<= (+ ~a12~0 42) 0) .cse20 .cse21) (and .cse0 .cse12 .cse24 .cse20 .cse21) (and .cse18 .cse0 .cse7 .cse9 .cse23) (and .cse0 .cse8 .cse12 .cse2 .cse21 .cse25) (and .cse0 .cse12 .cse26 .cse3 .cse15) (and .cse0 .cse12 .cse21 .cse25 .cse16) (and .cse0 .cse8 .cse12 .cse21 .cse15 .cse16) (and .cse18 .cse0 .cse13 .cse14 (< 0 .cse11) .cse19) (and .cse18 .cse0 .cse12 .cse20 .cse21 .cse23) (and .cse0 .cse13 .cse12 .cse26 .cse14 .cse25) (and .cse0 .cse8 .cse10 .cse22 .cse19) (and .cse18 .cse0 .cse8 .cse10 .cse23 .cse19) (and .cse6 .cse7 .cse24)))) [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-25 22:11:43,840 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-08-25 22:11:43,841 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-08-25 22:11:43,842 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-25 22:11:43,842 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-25 22:11:43,842 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-25 22:11:43,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 22:11:43,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:11:43 BoogieIcfgContainer [2021-08-25 22:11:43,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 22:11:43,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 22:11:43,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 22:11:43,873 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 22:11:43,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:10:03" (3/4) ... [2021-08-25 22:11:43,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 22:11:43,911 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 22:11:43,912 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 22:11:43,913 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 22:11:43,914 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 22:11:44,015 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 22:11:44,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 22:11:44,018 INFO L168 Benchmark]: Toolchain (without parser) took 102939.82 ms. Allocated memory was 54.5 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 29.4 MB in the beginning and 1.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 632.4 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,018 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 22:11:44,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.03 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 44.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.40 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 34.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,019 INFO L168 Benchmark]: Boogie Preprocessor took 91.33 ms. Allocated memory is still 67.1 MB. Free memory was 34.8 MB in the beginning and 29.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,020 INFO L168 Benchmark]: RCFGBuilder took 1592.70 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 29.1 MB in the beginning and 52.1 MB in the end (delta: -23.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,020 INFO L168 Benchmark]: TraceAbstraction took 100407.49 ms. Allocated memory was 81.8 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 52.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,020 INFO L168 Benchmark]: Witness Printer took 142.92 ms. Allocated memory is still 2.2 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-08-25 22:11:44,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.03 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.2 MB in the beginning and 44.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.40 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 34.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.33 ms. Allocated memory is still 67.1 MB. Free memory was 34.8 MB in the beginning and 29.1 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1592.70 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 29.1 MB in the beginning and 52.1 MB in the end (delta: -23.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 100407.49 ms. Allocated memory was 81.8 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 52.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. * Witness Printer took 142.92 ms. Allocated memory is still 2.2 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 119]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 100321.8ms, OverallIterations: 27, TraceHistogramMax: 22, EmptinessCheckTime: 364.8ms, AutomataDifference: 24708.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 4211.9ms, InitialAbstractionConstructionTime: 15.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3112 SDtfs, 3809 SDslu, 281 SDs, 0 SdLazy, 17971 SolverSat, 1307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17130.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7616 GetRequests, 7533 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 740.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=22, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1060.8ms AutomataMinimizationTime, 27 MinimizatonAttempts, 5938 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 133 NumberOfFragments, 979 HoareAnnotationTreeSize, 3 FomulaSimplifications, 18074 FormulaSimplificationTreeSizeReduction, 390.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 4596 FormulaSimplificationTreeSizeReductionInter, 3812.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 836.9ms SsaConstructionTime, 2996.9ms SatisfiabilityAnalysisTime, 45640.8ms InterpolantComputationTime, 32170 NumberOfCodeBlocks, 32170 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 32133 ConstructedInterpolants, 0 QuantifiedInterpolants, 87093 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9621 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 37 InterpolantComputations, 25 PerfectInterpolantSequences, 137158/139492 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && !(5 == a15)) || ((103531 <= a12 && a24 == 1) && 7 == a15)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) && !(5 == a15))) || ((((a12 <= 80 && a24 == 1) && a21 == 9) && 11 < a12) && 7 == a15)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && !(5 == input)) && a12 <= 599999) && 95382 <= a12)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((a24 == 1 && a15 <= 7) && 49 + a12 <= 0) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a21 <= 6) && a15 <= 7) && 0 <= 41 + a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 8) && a12 <= 586307)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || ((((a24 == 1 && a15 == 9) && a21 <= 8) && a12 <= 586307) && 95382 <= a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a21 == 9) && !(5 == input)) && 0 < a12 + 43) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && 80 < a12) && !(5 == input)) && a12 <= 586307)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 <= 41 + a12) && a15 == 8)) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6) && a12 + 9352 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && !(5 == a15)) || ((103531 <= a12 && a24 == 1) && 7 == a15)) || (((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) && !(5 == a15))) || ((((a12 <= 80 && a24 == 1) && a21 == 9) && 11 < a12) && 7 == a15)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && !(5 == input)) && a12 <= 599999) && 95382 <= a12)) || (((9 <= a21 && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((a24 == 1 && a15 <= 7) && 49 + a12 <= 0) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || ((((a12 <= 11 && a24 == 1) && a21 <= 6) && a15 <= 7) && 0 <= 41 + a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 8) && a12 <= 586307)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || ((((a24 == 1 && a15 == 9) && a21 <= 8) && a12 <= 586307) && 95382 <= a12)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a21 == 9) && !(5 == input)) && 0 < a12 + 43) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || (((((a24 == 1 && a21 == 9) && a15 == 9) && 80 < a12) && !(5 == input)) && a12 <= 586307)) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((((a12 <= 11 && a24 == 1) && 7 <= a21) && a21 <= 7) && 0 <= 41 + a12) && a15 == 8)) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a21 <= 6) && a12 + 9352 <= 0) RESULT: Ultimate proved your program to be correct! [2021-08-25 22:11:44,065 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...