./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label05.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/Problem10_label05.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 82dbac14d844fb1078e4d2ea5b1b4cbd16e915f5 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 21:42:52,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 21:42:52,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 21:42:52,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 21:42:52,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 21:42:52,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 21:42:52,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 21:42:52,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 21:42:52,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 21:42:52,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 21:42:52,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 21:42:52,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 21:42:52,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 21:42:52,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 21:42:52,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 21:42:52,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 21:42:52,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 21:42:52,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 21:42:52,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 21:42:52,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 21:42:52,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 21:42:52,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 21:42:52,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 21:42:52,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 21:42:52,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 21:42:52,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 21:42:52,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 21:42:52,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 21:42:52,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 21:42:52,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 21:42:52,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 21:42:52,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 21:42:52,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 21:42:52,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 21:42:52,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 21:42:52,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 21:42:52,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 21:42:52,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 21:42:52,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 21:42:52,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 21:42:52,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 21:42:52,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 21:42:52,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 21:42:52,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 21:42:52,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 21:42:52,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 21:42:52,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 21:42:52,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 21:42:52,918 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 21:42:52,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 21:42:52,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 21:42:52,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 21:42:52,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 21:42:52,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 21:42:52,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 21:42:52,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 21:42:52,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 21:42:52,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 21:42:52,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 21:42:52,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:42:52,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 21:42:52,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 21:42:52,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 21:42:52,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 21:42:52,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 21:42:52,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 21:42:52,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 21:42:52,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82dbac14d844fb1078e4d2ea5b1b4cbd16e915f5 [2021-08-25 21:42:53,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 21:42:53,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 21:42:53,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 21:42:53,234 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 21:42:53,235 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 21:42:53,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label05.c [2021-08-25 21:42:53,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f7d3b8/2d2469aa1dbc4387b0bf13334ba30ce2/FLAG68d80a69c [2021-08-25 21:42:53,635 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 21:42:53,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label05.c [2021-08-25 21:42:53,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f7d3b8/2d2469aa1dbc4387b0bf13334ba30ce2/FLAG68d80a69c [2021-08-25 21:42:54,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f7d3b8/2d2469aa1dbc4387b0bf13334ba30ce2 [2021-08-25 21:42:54,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 21:42:54,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 21:42:54,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 21:42:54,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 21:42:54,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 21:42:54,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674a623c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54, skipping insertion in model container [2021-08-25 21:42:54,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 21:42:54,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 21:42:54,207 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/Problem10_label05.c[5981,5994] [2021-08-25 21:42:54,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:42:54,364 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 21:42:54,391 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/Problem10_label05.c[5981,5994] [2021-08-25 21:42:54,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 21:42:54,432 INFO L208 MainTranslator]: Completed translation [2021-08-25 21:42:54,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54 WrapperNode [2021-08-25 21:42:54,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 21:42:54,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 21:42:54,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 21:42:54,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 21:42:54,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 21:42:54,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 21:42:54,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 21:42:54,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 21:42:54,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 21:42:54,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 21:42:54,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 21:42:54,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 21:42:54,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (1/1) ... [2021-08-25 21:42:54,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 21:42:54,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:42:54,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-25 21:42:54,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-25 21:42:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 21:42:54,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 21:42:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 21:42:54,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 21:42:55,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 21:42:55,545 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-25 21:42:55,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:42:55 BoogieIcfgContainer [2021-08-25 21:42:55,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 21:42:55,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 21:42:55,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 21:42:55,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 21:42:55,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:42:54" (1/3) ... [2021-08-25 21:42:55,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d72cd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:42:55, skipping insertion in model container [2021-08-25 21:42:55,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:42:54" (2/3) ... [2021-08-25 21:42:55,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d72cd76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:42:55, skipping insertion in model container [2021-08-25 21:42:55,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:42:55" (3/3) ... [2021-08-25 21:42:55,551 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label05.c [2021-08-25 21:42:55,554 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 21:42:55,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 21:42:55,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 21:42:55,589 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-25 21:42:55,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 21:42:55,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:55,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-25 21:42:55,604 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:55,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:55,605 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:55,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:55,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2021-08-25 21:42:55,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:55,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625852696] [2021-08-25 21:42:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:55,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:55,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:55,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625852696] [2021-08-25 21:42:55,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625852696] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:55,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:55,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:42:55,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446849322] [2021-08-25 21:42:55,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:42:55,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:42:55,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:55,788 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:56,404 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2021-08-25 21:42:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:42:56,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-08-25 21:42:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:56,422 INFO L225 Difference]: With dead ends: 552 [2021-08-25 21:42:56,422 INFO L226 Difference]: Without dead ends: 282 [2021-08-25 21:42:56,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-08-25 21:42:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-08-25 21:42:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2021-08-25 21:42:56,477 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 52 [2021-08-25 21:42:56,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:56,478 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2021-08-25 21:42:56,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:56,479 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2021-08-25 21:42:56,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-08-25 21:42:56,486 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:56,487 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:56,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 21:42:56,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:56,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:56,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1275698798, now seen corresponding path program 1 times [2021-08-25 21:42:56,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:56,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225210951] [2021-08-25 21:42:56,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:56,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:56,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:56,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225210951] [2021-08-25 21:42:56,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225210951] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:56,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:56,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:42:56,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72375127] [2021-08-25 21:42:56,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:42:56,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:56,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:42:56,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:56,652 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:57,071 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-08-25 21:42:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:42:57,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-08-25 21:42:57,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:57,073 INFO L225 Difference]: With dead ends: 701 [2021-08-25 21:42:57,073 INFO L226 Difference]: Without dead ends: 421 [2021-08-25 21:42:57,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:57,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-08-25 21:42:57,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-08-25 21:42:57,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2021-08-25 21:42:57,084 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 118 [2021-08-25 21:42:57,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:57,085 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2021-08-25 21:42:57,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,085 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2021-08-25 21:42:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-08-25 21:42:57,086 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:57,086 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:57,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 21:42:57,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:57,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:57,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1924622465, now seen corresponding path program 1 times [2021-08-25 21:42:57,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:57,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569576354] [2021-08-25 21:42:57,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:57,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:57,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:57,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569576354] [2021-08-25 21:42:57,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569576354] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:57,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:57,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 21:42:57,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528814784] [2021-08-25 21:42:57,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:42:57,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:57,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:42:57,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:57,163 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:57,529 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2021-08-25 21:42:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:42:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-08-25 21:42:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:57,540 INFO L225 Difference]: With dead ends: 979 [2021-08-25 21:42:57,541 INFO L226 Difference]: Without dead ends: 560 [2021-08-25 21:42:57,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:57,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-08-25 21:42:57,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-08-25 21:42:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2021-08-25 21:42:57,553 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 125 [2021-08-25 21:42:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:57,554 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2021-08-25 21:42:57,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2021-08-25 21:42:57,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-08-25 21:42:57,556 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:57,556 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:57,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-25 21:42:57,556 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:57,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:57,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1091712892, now seen corresponding path program 1 times [2021-08-25 21:42:57,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:57,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925664810] [2021-08-25 21:42:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:57,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:57,599 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:57,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:57,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925664810] [2021-08-25 21:42:57,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925664810] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:57,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:57,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:42:57,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613133617] [2021-08-25 21:42:57,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:42:57,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:57,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:42:57,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:57,602 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:58,033 INFO L93 Difference]: Finished difference Result 979 states and 1199 transitions. [2021-08-25 21:42:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:42:58,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-08-25 21:42:58,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:58,037 INFO L225 Difference]: With dead ends: 979 [2021-08-25 21:42:58,037 INFO L226 Difference]: Without dead ends: 977 [2021-08-25 21:42:58,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:58,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-08-25 21:42:58,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 699. [2021-08-25 21:42:58,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2736389684813754) internal successors, (889), 698 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 889 transitions. [2021-08-25 21:42:58,064 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 889 transitions. Word has length 127 [2021-08-25 21:42:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:58,065 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 889 transitions. [2021-08-25 21:42:58,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,065 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 889 transitions. [2021-08-25 21:42:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-08-25 21:42:58,067 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:58,067 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, 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] [2021-08-25 21:42:58,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-25 21:42:58,067 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash -190546644, now seen corresponding path program 1 times [2021-08-25 21:42:58,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:58,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170127281] [2021-08-25 21:42:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:58,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:58,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:58,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170127281] [2021-08-25 21:42:58,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170127281] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:58,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:58,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:42:58,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221818445] [2021-08-25 21:42:58,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-25 21:42:58,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-25 21:42:58,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-25 21:42:58,224 INFO L87 Difference]: Start difference. First operand 699 states and 889 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:58,718 INFO L93 Difference]: Finished difference Result 1271 states and 1641 transitions. [2021-08-25 21:42:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-25 21:42:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 170 [2021-08-25 21:42:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:58,721 INFO L225 Difference]: With dead ends: 1271 [2021-08-25 21:42:58,721 INFO L226 Difference]: Without dead ends: 713 [2021-08-25 21:42:58,722 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-25 21:42:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-08-25 21:42:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 699. [2021-08-25 21:42:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2664756446991403) internal successors, (884), 698 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 884 transitions. [2021-08-25 21:42:58,740 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 884 transitions. Word has length 170 [2021-08-25 21:42:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:58,740 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 884 transitions. [2021-08-25 21:42:58,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 884 transitions. [2021-08-25 21:42:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-08-25 21:42:58,743 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:58,743 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:58,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-25 21:42:58,744 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:58,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1143734122, now seen corresponding path program 1 times [2021-08-25 21:42:58,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:58,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749444447] [2021-08-25 21:42:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:58,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:58,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:58,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749444447] [2021-08-25 21:42:58,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749444447] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:58,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:58,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-25 21:42:58,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893621838] [2021-08-25 21:42:58,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-25 21:42:58,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:58,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-25 21:42:58,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:42:58,922 INFO L87 Difference]: Start difference. First operand 699 states and 884 transitions. Second operand has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:59,375 INFO L93 Difference]: Finished difference Result 1312 states and 1677 transitions. [2021-08-25 21:42:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-25 21:42:59,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 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 205 [2021-08-25 21:42:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:59,378 INFO L225 Difference]: With dead ends: 1312 [2021-08-25 21:42:59,378 INFO L226 Difference]: Without dead ends: 699 [2021-08-25 21:42:59,381 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.4ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:42:59,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-08-25 21:42:59,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 699. [2021-08-25 21:42:59,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.2607449856733524) internal successors, (880), 698 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 880 transitions. [2021-08-25 21:42:59,391 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 880 transitions. Word has length 205 [2021-08-25 21:42:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:59,391 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 880 transitions. [2021-08-25 21:42:59,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.285714285714285) internal successors, (205), 6 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 880 transitions. [2021-08-25 21:42:59,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-08-25 21:42:59,393 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:59,393 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:59,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-25 21:42:59,394 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1025274224, now seen corresponding path program 1 times [2021-08-25 21:42:59,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:59,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673074945] [2021-08-25 21:42:59,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:59,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:59,466 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:59,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:59,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673074945] [2021-08-25 21:42:59,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673074945] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:42:59,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:42:59,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:42:59,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013790278] [2021-08-25 21:42:59,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:42:59,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:42:59,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:42:59,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:59,469 INFO L87 Difference]: Start difference. First operand 699 states and 880 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:42:59,853 INFO L93 Difference]: Finished difference Result 1535 states and 2042 transitions. [2021-08-25 21:42:59,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:42:59,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-08-25 21:42:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:42:59,857 INFO L225 Difference]: With dead ends: 1535 [2021-08-25 21:42:59,857 INFO L226 Difference]: Without dead ends: 977 [2021-08-25 21:42:59,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:42:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-08-25 21:42:59,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2021-08-25 21:42:59,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.2592213114754098) internal successors, (1229), 976 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1229 transitions. [2021-08-25 21:42:59,872 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1229 transitions. Word has length 241 [2021-08-25 21:42:59,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:42:59,873 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1229 transitions. [2021-08-25 21:42:59,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:42:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1229 transitions. [2021-08-25 21:42:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-08-25 21:42:59,875 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:42:59,875 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:42:59,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-25 21:42:59,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:42:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:42:59,876 INFO L82 PathProgramCache]: Analyzing trace with hash -374221687, now seen corresponding path program 1 times [2021-08-25 21:42:59,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:42:59,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22582107] [2021-08-25 21:42:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:59,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:42:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:42:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 114 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:42:59,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:42:59,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22582107] [2021-08-25 21:42:59,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22582107] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:42:59,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633726552] [2021-08-25 21:42:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:42:59,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:42:59,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:42:59,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:42:59,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-25 21:43:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:00,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:43:00,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:43:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-08-25 21:43:01,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633726552] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:43:01,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:43:01,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-08-25 21:43:01,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320277829] [2021-08-25 21:43:01,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:43:01,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:43:01,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:43:01,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:43:01,032 INFO L87 Difference]: Start difference. First operand 977 states and 1229 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:43:01,380 INFO L93 Difference]: Finished difference Result 2091 states and 2645 transitions. [2021-08-25 21:43:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:43:01,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 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 284 [2021-08-25 21:43:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:43:01,384 INFO L225 Difference]: With dead ends: 2091 [2021-08-25 21:43:01,384 INFO L226 Difference]: Without dead ends: 1255 [2021-08-25 21:43:01,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.9ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-25 21:43:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-08-25 21:43:01,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2021-08-25 21:43:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.1650717703349283) internal successors, (1461), 1254 states have internal predecessors, (1461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1461 transitions. [2021-08-25 21:43:01,400 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1461 transitions. Word has length 284 [2021-08-25 21:43:01,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:43:01,400 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1461 transitions. [2021-08-25 21:43:01,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:01,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1461 transitions. [2021-08-25 21:43:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-08-25 21:43:01,403 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:43:01,404 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:43:01,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-25 21:43:01,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:43:01,621 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:43:01,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:43:01,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1812017199, now seen corresponding path program 1 times [2021-08-25 21:43:01,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:43:01,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492185393] [2021-08-25 21:43:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:43:01,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:43:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:01,710 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-08-25 21:43:01,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:43:01,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492185393] [2021-08-25 21:43:01,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492185393] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:43:01,716 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:43:01,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:43:01,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274830706] [2021-08-25 21:43:01,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:43:01,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:43:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:43:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:01,719 INFO L87 Difference]: Start difference. First operand 1255 states and 1461 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:43:02,086 INFO L93 Difference]: Finished difference Result 2647 states and 3154 transitions. [2021-08-25 21:43:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:43:02,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2021-08-25 21:43:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:43:02,090 INFO L225 Difference]: With dead ends: 2647 [2021-08-25 21:43:02,090 INFO L226 Difference]: Without dead ends: 1533 [2021-08-25 21:43:02,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:02,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-08-25 21:43:02,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1394. [2021-08-25 21:43:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.1593682699210337) internal successors, (1615), 1393 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1615 transitions. [2021-08-25 21:43:02,109 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1615 transitions. Word has length 314 [2021-08-25 21:43:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:43:02,109 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1615 transitions. [2021-08-25 21:43:02,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1615 transitions. [2021-08-25 21:43:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-08-25 21:43:02,113 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:43:02,113 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:43:02,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-25 21:43:02,113 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:43:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:43:02,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1741531862, now seen corresponding path program 1 times [2021-08-25 21:43:02,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:43:02,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727449717] [2021-08-25 21:43:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:43:02,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:43:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:02,191 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-08-25 21:43:02,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:43:02,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727449717] [2021-08-25 21:43:02,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727449717] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:43:02,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:43:02,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:43:02,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503330394] [2021-08-25 21:43:02,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:43:02,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:43:02,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:43:02,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:02,194 INFO L87 Difference]: Start difference. First operand 1394 states and 1615 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:43:02,548 INFO L93 Difference]: Finished difference Result 1674 states and 1918 transitions. [2021-08-25 21:43:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:43:02,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2021-08-25 21:43:02,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:43:02,553 INFO L225 Difference]: With dead ends: 1674 [2021-08-25 21:43:02,553 INFO L226 Difference]: Without dead ends: 1672 [2021-08-25 21:43:02,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:02,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-08-25 21:43:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1255. [2021-08-25 21:43:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2021-08-25 21:43:02,571 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 324 [2021-08-25 21:43:02,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:43:02,571 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2021-08-25 21:43:02,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:02,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2021-08-25 21:43:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-08-25 21:43:02,589 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:43:02,590 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:43:02,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-25 21:43:02,590 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:43:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:43:02,590 INFO L82 PathProgramCache]: Analyzing trace with hash -2086864510, now seen corresponding path program 1 times [2021-08-25 21:43:02,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:43:02,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204164145] [2021-08-25 21:43:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:43:02,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:43:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:02,710 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 349 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 21:43:02,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:43:02,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204164145] [2021-08-25 21:43:02,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204164145] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-25 21:43:02,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719486612] [2021-08-25 21:43:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:43:02,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-25 21:43:02,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 21:43:02,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-25 21:43:02,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-25 21:43:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:02,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-25 21:43:02,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 21:43:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-08-25 21:43:03,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719486612] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:43:03,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-25 21:43:03,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-25 21:43:03,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907328270] [2021-08-25 21:43:03,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:43:03,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:43:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:43:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:43:03,674 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:43:04,063 INFO L93 Difference]: Finished difference Result 3203 states and 3742 transitions. [2021-08-25 21:43:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:43:04,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 352 [2021-08-25 21:43:04,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:43:04,069 INFO L225 Difference]: With dead ends: 3203 [2021-08-25 21:43:04,069 INFO L226 Difference]: Without dead ends: 2089 [2021-08-25 21:43:04,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-25 21:43:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-08-25 21:43:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2021-08-25 21:43:04,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 2088 states have (on average 1.1345785440613028) internal successors, (2369), 2088 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2369 transitions. [2021-08-25 21:43:04,095 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2369 transitions. Word has length 352 [2021-08-25 21:43:04,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:43:04,095 INFO L470 AbstractCegarLoop]: Abstraction has 2089 states and 2369 transitions. [2021-08-25 21:43:04,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2369 transitions. [2021-08-25 21:43:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-08-25 21:43:04,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 21:43:04,100 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-25 21:43:04,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-25 21:43:04,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-25 21:43:04,317 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 21:43:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 21:43:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash 512721694, now seen corresponding path program 1 times [2021-08-25 21:43:04,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 21:43:04,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711058184] [2021-08-25 21:43:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 21:43:04,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 21:43:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 21:43:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2021-08-25 21:43:04,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 21:43:04,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711058184] [2021-08-25 21:43:04,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711058184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 21:43:04,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 21:43:04,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-25 21:43:04,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233766496] [2021-08-25 21:43:04,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-25 21:43:04,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 21:43:04,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-25 21:43:04,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:04,412 INFO L87 Difference]: Start difference. First operand 2089 states and 2369 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 21:43:04,775 INFO L93 Difference]: Finished difference Result 4035 states and 4592 transitions. [2021-08-25 21:43:04,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-25 21:43:04,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 365 [2021-08-25 21:43:04,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 21:43:04,776 INFO L225 Difference]: With dead ends: 4035 [2021-08-25 21:43:04,776 INFO L226 Difference]: Without dead ends: 0 [2021-08-25 21:43:04,778 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-25 21:43:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-25 21:43:04,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-25 21:43:04,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-25 21:43:04,779 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 365 [2021-08-25 21:43:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 21:43:04,779 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-25 21:43:04,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-25 21:43:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-25 21:43:04,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-25 21:43:04,782 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 21:43:04,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-25 21:43:04,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-25 21:43:04,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:43:04,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:43:04,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-25 21:43:04,938 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-08-25 21:43:04,938 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-08-25 21:43:04,938 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-08-25 21:43:04,938 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-08-25 21:43:04,938 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,939 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-08-25 21:43:04,940 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-08-25 21:43:04,941 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-08-25 21:43:04,941 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-08-25 21:43:04,942 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-08-25 21:43:04,943 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,944 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,946 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,946 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,946 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-25 21:43:04,947 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,948 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-08-25 21:43:04,949 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,950 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,951 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,951 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,951 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-08-25 21:43:04,951 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-08-25 21:43:04,951 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-08-25 21:43:04,952 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-08-25 21:43:04,953 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse0 (= ~a10~0 3) .cse1 .cse2) (and .cse3 (= ~a10~0 1) .cse1 .cse2))) [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-08-25 21:43:04,954 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-25 21:43:04,955 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,956 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-08-25 21:43:04,957 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,959 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-08-25 21:43:04,960 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-08-25 21:43:04,961 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-08-25 21:43:04,961 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse3 (<= 7 ~a19~0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and .cse0 (= ~a10~0 4) .cse1 .cse2) (and (= ~a10~0 0) .cse1 .cse2) (and .cse0 .cse3 .cse1 (= ~a10~0 2) .cse2) (and .cse0 (= ~a10~0 3) .cse1 .cse2) (and .cse3 (= ~a10~0 1) .cse1 .cse2))) [2021-08-25 21:43:04,961 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-08-25 21:43:04,962 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 170) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-08-25 21:43:04,963 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-08-25 21:43:04,964 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-08-25 21:43:04,965 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-25 21:43:04,968 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 21:43:04,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 09:43:04 BoogieIcfgContainer [2021-08-25 21:43:04,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 21:43:04,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 21:43:04,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 21:43:04,988 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 21:43:04,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:42:55" (3/4) ... [2021-08-25 21:43:04,990 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-25 21:43:05,007 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-25 21:43:05,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-25 21:43:05,008 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:43:05,009 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-25 21:43:05,081 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-25 21:43:05,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 21:43:05,082 INFO L168 Benchmark]: Toolchain (without parser) took 11057.36 ms. Allocated memory was 60.8 MB in the beginning and 337.6 MB in the end (delta: 276.8 MB). Free memory was 43.5 MB in the beginning and 203.4 MB in the end (delta: -160.0 MB). Peak memory consumption was 116.3 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,082 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.2 MB in the beginning and 28.1 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 21:43:05,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.41 ms. Allocated memory is still 60.8 MB. Free memory was 43.3 MB in the beginning and 30.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 60.8 MB. Free memory was 30.5 MB in the beginning and 37.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,083 INFO L168 Benchmark]: Boogie Preprocessor took 41.53 ms. Allocated memory is still 60.8 MB. Free memory was 37.4 MB in the beginning and 32.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,083 INFO L168 Benchmark]: RCFGBuilder took 1005.88 ms. Allocated memory was 60.8 MB in the beginning and 96.5 MB in the end (delta: 35.7 MB). Free memory was 32.5 MB in the beginning and 48.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,084 INFO L168 Benchmark]: TraceAbstraction took 9440.08 ms. Allocated memory was 96.5 MB in the beginning and 337.6 MB in the end (delta: 241.2 MB). Free memory was 47.9 MB in the beginning and 218.1 MB in the end (delta: -170.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,084 INFO L168 Benchmark]: Witness Printer took 93.23 ms. Allocated memory is still 337.6 MB. Free memory was 218.1 MB in the beginning and 203.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-25 21:43:05,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 46.1 MB. Free memory was 28.2 MB in the beginning and 28.1 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 406.41 ms. Allocated memory is still 60.8 MB. Free memory was 43.3 MB in the beginning and 30.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 60.8 MB. Free memory was 30.5 MB in the beginning and 37.4 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.53 ms. Allocated memory is still 60.8 MB. Free memory was 37.4 MB in the beginning and 32.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1005.88 ms. Allocated memory was 60.8 MB in the beginning and 96.5 MB in the end (delta: 35.7 MB). Free memory was 32.5 MB in the beginning and 48.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9440.08 ms. Allocated memory was 96.5 MB in the beginning and 337.6 MB in the end (delta: 241.2 MB). Free memory was 47.9 MB in the beginning and 218.1 MB in the end (delta: -170.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.1 GB. * Witness Printer took 93.23 ms. Allocated memory is still 337.6 MB. Free memory was 218.1 MB in the beginning and 203.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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: 170]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9383.6ms, OverallIterations: 12, TraceHistogramMax: 4, EmptinessCheckTime: 50.8ms, AutomataDifference: 5098.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 155.5ms, InitialAbstractionConstructionTime: 8.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1335 SDtfs, 1135 SDslu, 68 SDs, 0 SdLazy, 4813 SolverSat, 733 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3603.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 675 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 121.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2089occurred in iteration=11, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 205.1ms AutomataMinimizationTime, 12 MinimizatonAttempts, 848 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 133 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1240 FormulaSimplificationTreeSizeReduction, 33.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 102 FormulaSimplificationTreeSizeReductionInter, 116.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 114.3ms SsaConstructionTime, 390.6ms SatisfiabilityAnalysisTime, 2567.9ms InterpolantComputationTime, 3313 NumberOfCodeBlocks, 3313 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3299 ConstructedInterpolants, 0 QuantifiedInterpolants, 12430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 904 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 2788/2928 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: 592]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && 7 <= a19) && 14 == a4) && a10 == 2) && a12 == 0)) || (((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0)) || (((7 <= a19 && a10 == 1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a19 <= 9 && a10 == 4) && 14 == a4) && a12 == 0) || ((a10 == 0 && 14 == a4) && a12 == 0)) || ((((a19 <= 9 && 7 <= a19) && 14 == a4) && a10 == 2) && a12 == 0)) || (((a19 <= 9 && a10 == 3) && 14 == a4) && a12 == 0)) || (((7 <= a19 && a10 == 1) && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-25 21:43:05,102 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...