./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label36.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 9732118990568cf242ce5c36af54daf44dd294d6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 04:54:05,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 04:54:05,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 04:54:05,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 04:54:05,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 04:54:05,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 04:54:05,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 04:54:05,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 04:54:05,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 04:54:05,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 04:54:05,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 04:54:05,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 04:54:05,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 04:54:05,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 04:54:05,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 04:54:05,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 04:54:05,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 04:54:05,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 04:54:05,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 04:54:05,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 04:54:05,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 04:54:05,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 04:54:05,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 04:54:05,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 04:54:05,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 04:54:05,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 04:54:05,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 04:54:05,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 04:54:05,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 04:54:05,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 04:54:05,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 04:54:05,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 04:54:05,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 04:54:05,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 04:54:05,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 04:54:05,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 04:54:05,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 04:54:05,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 04:54:05,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 04:54:05,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 04:54:05,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 04:54:05,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 04:54:05,729 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 04:54:05,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 04:54:05,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 04:54:05,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 04:54:05,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 04:54:05,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 04:54:05,733 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 04:54:05,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 04:54:05,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 04:54:05,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 04:54:05,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 04:54:05,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 04:54:05,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 04:54:05,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 04:54:05,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 04:54:05,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 04:54:05,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 04:54:05,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 04:54:05,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 04:54:05,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 04:54:05,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 04:54:05,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 04:54:05,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:54:05,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 04:54:05,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 04:54:05,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 04:54:05,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 04:54:05,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 04:54:05,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 04:54:05,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 04:54:05,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9732118990568cf242ce5c36af54daf44dd294d6 [2021-08-29 04:54:05,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 04:54:06,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 04:54:06,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 04:54:06,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 04:54:06,014 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 04:54:06,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2021-08-29 04:54:06,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c185d66/66888cc52e654dfc9ec6c8560b51fa3e/FLAGe8dc347c8 [2021-08-29 04:54:06,468 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 04:54:06,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label36.c [2021-08-29 04:54:06,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c185d66/66888cc52e654dfc9ec6c8560b51fa3e/FLAGe8dc347c8 [2021-08-29 04:54:06,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30c185d66/66888cc52e654dfc9ec6c8560b51fa3e [2021-08-29 04:54:06,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 04:54:06,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 04:54:06,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 04:54:06,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 04:54:06,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 04:54:06,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:54:06" (1/1) ... [2021-08-29 04:54:06,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658fb95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:06, skipping insertion in model container [2021-08-29 04:54:06,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:54:06" (1/1) ... [2021-08-29 04:54:06,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 04:54:06,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 04:54:07,015 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label36.c[4997,5010] [2021-08-29 04:54:07,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:54:07,225 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 04:54:07,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label36.c[4997,5010] [2021-08-29 04:54:07,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 04:54:07,316 INFO L208 MainTranslator]: Completed translation [2021-08-29 04:54:07,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07 WrapperNode [2021-08-29 04:54:07,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 04:54:07,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 04:54:07,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 04:54:07,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 04:54:07,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 04:54:07,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 04:54:07,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 04:54:07,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 04:54:07,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 04:54:07,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 04:54:07,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 04:54:07,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 04:54:07,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (1/1) ... [2021-08-29 04:54:07,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 04:54:07,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:07,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 04:54:07,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 04:54:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 04:54:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 04:54:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 04:54:07,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 04:54:07,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 04:54:07,906 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-29 04:54:07,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:07 BoogieIcfgContainer [2021-08-29 04:54:07,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 04:54:07,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 04:54:07,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 04:54:07,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 04:54:07,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:54:06" (1/3) ... [2021-08-29 04:54:07,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f26d4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:54:07, skipping insertion in model container [2021-08-29 04:54:07,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:54:07" (2/3) ... [2021-08-29 04:54:07,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f26d4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:54:07, skipping insertion in model container [2021-08-29 04:54:07,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:07" (3/3) ... [2021-08-29 04:54:07,917 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2021-08-29 04:54:07,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 04:54:07,920 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 04:54:07,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 04:54:07,970 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 04:54:07,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 04:54:07,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-29 04:54:07,996 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:07,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:07,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:08,000 INFO L82 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2021-08-29 04:54:08,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:08,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941731559] [2021-08-29 04:54:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:08,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:54:08,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:08,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941731559] [2021-08-29 04:54:08,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941731559] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:08,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:08,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 04:54:08,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340985936] [2021-08-29 04:54:08,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:08,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:08,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:08,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:08,330 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:09,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:09,306 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2021-08-29 04:54:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:09,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-08-29 04:54:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:09,316 INFO L225 Difference]: With dead ends: 685 [2021-08-29 04:54:09,316 INFO L226 Difference]: Without dead ends: 360 [2021-08-29 04:54:09,318 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:09,322 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 170 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 711.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 909.91ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:09,322 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 0 Invalid, 850 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [176 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 909.91ms Time] [2021-08-29 04:54:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-08-29 04:54:09,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-08-29 04:54:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2021-08-29 04:54:09,358 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 48 [2021-08-29 04:54:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:09,358 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2021-08-29 04:54:09,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2021-08-29 04:54:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-08-29 04:54:09,361 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:09,362 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:09,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 04:54:09,362 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:09,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:09,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1857002779, now seen corresponding path program 1 times [2021-08-29 04:54:09,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:09,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37419145] [2021-08-29 04:54:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:09,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:54:09,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:09,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37419145] [2021-08-29 04:54:09,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37419145] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:09,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:09,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:09,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686269009] [2021-08-29 04:54:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:09,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:09,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:09,546 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 31.75) 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) [2021-08-29 04:54:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:10,282 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2021-08-29 04:54:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) 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 [2021-08-29 04:54:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:10,285 INFO L225 Difference]: With dead ends: 1074 [2021-08-29 04:54:10,286 INFO L226 Difference]: Without dead ends: 716 [2021-08-29 04:54:10,286 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:10,287 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 558.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.82ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 698.03ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:10,288 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 0 Invalid, 1138 Unknown, 0 Unchecked, 4.82ms Time], IncrementalHoareTripleChecker [41 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 698.03ms Time] [2021-08-29 04:54:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-08-29 04:54:10,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-08-29 04:54:10,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:10,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2021-08-29 04:54:10,329 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 127 [2021-08-29 04:54:10,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:10,330 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2021-08-29 04:54:10,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) 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) [2021-08-29 04:54:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2021-08-29 04:54:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-08-29 04:54:10,341 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:10,341 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:10,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 04:54:10,341 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:10,342 INFO L82 PathProgramCache]: Analyzing trace with hash 631398692, now seen corresponding path program 1 times [2021-08-29 04:54:10,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:10,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112228267] [2021-08-29 04:54:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:10,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:54:10,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:10,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112228267] [2021-08-29 04:54:10,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112228267] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:10,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727156046] [2021-08-29 04:54:10,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:10,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:10,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:10,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:10,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-29 04:54:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:10,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:10,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:10,896 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 04:54:10,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:10,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727156046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:10,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:10,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-29 04:54:10,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461114848] [2021-08-29 04:54:10,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:10,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:10,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:10,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:10,902 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:11,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:11,516 INFO L93 Difference]: Finished difference Result 1964 states and 2499 transitions. [2021-08-29 04:54:11,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:11,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2021-08-29 04:54:11,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:11,520 INFO L225 Difference]: With dead ends: 1964 [2021-08-29 04:54:11,520 INFO L226 Difference]: Without dead ends: 1250 [2021-08-29 04:54:11,521 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.51ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:11,522 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 134 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 468.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.41ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 591.35ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:11,522 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 0 Invalid, 713 Unknown, 0 Unchecked, 1.41ms Time], IncrementalHoareTripleChecker [143 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 591.35ms Time] [2021-08-29 04:54:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2021-08-29 04:54:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2021-08-29 04:54:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2021-08-29 04:54:11,542 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 153 [2021-08-29 04:54:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:11,543 INFO L470 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2021-08-29 04:54:11,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2021-08-29 04:54:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-08-29 04:54:11,545 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:11,545 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:11,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:11,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:11,762 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:11,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:11,763 INFO L82 PathProgramCache]: Analyzing trace with hash -481367143, now seen corresponding path program 1 times [2021-08-29 04:54:11,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:11,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851404450] [2021-08-29 04:54:11,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:11,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-29 04:54:11,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:11,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851404450] [2021-08-29 04:54:11,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851404450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:11,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:11,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:11,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966213429] [2021-08-29 04:54:11,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:11,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:11,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:11,915 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:12,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:12,483 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2021-08-29 04:54:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-08-29 04:54:12,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:12,488 INFO L225 Difference]: With dead ends: 2705 [2021-08-29 04:54:12,488 INFO L226 Difference]: Without dead ends: 1606 [2021-08-29 04:54:12,489 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.91ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:12,489 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 437.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.57ms SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 541.96ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:12,489 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 0 Invalid, 890 Unknown, 0 Unchecked, 1.57ms Time], IncrementalHoareTripleChecker [110 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 541.96ms Time] [2021-08-29 04:54:12,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2021-08-29 04:54:12,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2021-08-29 04:54:12,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2021-08-29 04:54:12,515 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 207 [2021-08-29 04:54:12,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:12,516 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2021-08-29 04:54:12,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:12,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2021-08-29 04:54:12,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2021-08-29 04:54:12,520 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:12,521 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-08-29 04:54:12,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 04:54:12,522 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:12,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:12,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1679919992, now seen corresponding path program 1 times [2021-08-29 04:54:12,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:12,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218801626] [2021-08-29 04:54:12,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:12,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 185 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-08-29 04:54:12,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:12,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218801626] [2021-08-29 04:54:12,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218801626] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:12,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645713483] [2021-08-29 04:54:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:12,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:12,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:12,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:12,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-29 04:54:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:12,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:12,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:13,420 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-08-29 04:54:13,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:13,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645713483] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:13,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:13,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-08-29 04:54:13,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805111469] [2021-08-29 04:54:13,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:13,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:13,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:13,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:13,422 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:13,832 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2021-08-29 04:54:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:13,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 334 [2021-08-29 04:54:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:13,838 INFO L225 Difference]: With dead ends: 3388 [2021-08-29 04:54:13,840 INFO L226 Difference]: Without dead ends: 1962 [2021-08-29 04:54:13,841 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.94ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:13,842 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 295.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.05ms SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 386.49ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:13,842 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 573 Unknown, 0 Unchecked, 1.05ms Time], IncrementalHoareTripleChecker [124 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 386.49ms Time] [2021-08-29 04:54:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-08-29 04:54:13,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2021-08-29 04:54:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2021-08-29 04:54:13,865 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 334 [2021-08-29 04:54:13,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:13,869 INFO L470 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2021-08-29 04:54:13,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2021-08-29 04:54:13,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-08-29 04:54:13,872 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:13,872 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-29 04:54:13,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:14,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:14,089 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash -306113282, now seen corresponding path program 1 times [2021-08-29 04:54:14,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:14,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349899095] [2021-08-29 04:54:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:14,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-08-29 04:54:14,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:14,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349899095] [2021-08-29 04:54:14,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349899095] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:14,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:14,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:14,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733060404] [2021-08-29 04:54:14,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:14,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:14,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:14,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:14,176 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:14,573 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2021-08-29 04:54:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:14,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 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 338 [2021-08-29 04:54:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:14,579 INFO L225 Difference]: With dead ends: 3744 [2021-08-29 04:54:14,579 INFO L226 Difference]: Without dead ends: 2140 [2021-08-29 04:54:14,582 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:14,584 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 374.91ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:14,585 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 0 Invalid, 569 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [23 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 374.91ms Time] [2021-08-29 04:54:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-08-29 04:54:14,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-08-29 04:54:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2021-08-29 04:54:14,612 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 338 [2021-08-29 04:54:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:14,613 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2021-08-29 04:54:14,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2021-08-29 04:54:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-08-29 04:54:14,616 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:14,616 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2021-08-29 04:54:14,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-29 04:54:14,617 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:14,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:14,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1610515652, now seen corresponding path program 1 times [2021-08-29 04:54:14,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:14,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139779238] [2021-08-29 04:54:14,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:14,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-29 04:54:14,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:14,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139779238] [2021-08-29 04:54:14,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139779238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:14,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:14,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:14,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467046282] [2021-08-29 04:54:14,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:14,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:14,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:14,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:14,707 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:15,113 INFO L93 Difference]: Finished difference Result 4634 states and 5316 transitions. [2021-08-29 04:54:15,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:15,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 [2021-08-29 04:54:15,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:15,120 INFO L225 Difference]: With dead ends: 4634 [2021-08-29 04:54:15,120 INFO L226 Difference]: Without dead ends: 2674 [2021-08-29 04:54:15,122 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:15,123 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 139 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.11ms SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 380.29ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:15,123 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 0 Invalid, 576 Unknown, 0 Unchecked, 1.11ms Time], IncrementalHoareTripleChecker [75 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 380.29ms Time] [2021-08-29 04:54:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-08-29 04:54:15,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2021-08-29 04:54:15,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.131635735865343) internal successors, (2622), 2317 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2622 transitions. [2021-08-29 04:54:15,168 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2622 transitions. Word has length 365 [2021-08-29 04:54:15,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:15,168 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2622 transitions. [2021-08-29 04:54:15,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2622 transitions. [2021-08-29 04:54:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-08-29 04:54:15,172 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:15,172 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:15,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-29 04:54:15,172 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:15,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1666938601, now seen corresponding path program 1 times [2021-08-29 04:54:15,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:15,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560629813] [2021-08-29 04:54:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:15,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-29 04:54:15,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:15,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560629813] [2021-08-29 04:54:15,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560629813] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:15,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:15,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:15,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161936891] [2021-08-29 04:54:15,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:15,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:15,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:15,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:15,295 INFO L87 Difference]: Start difference. First operand 2318 states and 2622 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:15,726 INFO L93 Difference]: Finished difference Result 5168 states and 5922 transitions. [2021-08-29 04:54:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 372 [2021-08-29 04:54:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:15,735 INFO L225 Difference]: With dead ends: 5168 [2021-08-29 04:54:15,735 INFO L226 Difference]: Without dead ends: 3030 [2021-08-29 04:54:15,737 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 04:54:15,738 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 321.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 405.55ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:15,738 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 0 Invalid, 574 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [76 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 405.55ms Time] [2021-08-29 04:54:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-08-29 04:54:15,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-08-29 04:54:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.132717068339386) internal successors, (3431), 3029 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3431 transitions. [2021-08-29 04:54:15,774 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3431 transitions. Word has length 372 [2021-08-29 04:54:15,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:15,774 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3431 transitions. [2021-08-29 04:54:15,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:15,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3431 transitions. [2021-08-29 04:54:15,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-08-29 04:54:15,798 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:15,799 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:15,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-29 04:54:15,799 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:15,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:15,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1919051157, now seen corresponding path program 1 times [2021-08-29 04:54:15,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:15,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024137384] [2021-08-29 04:54:15,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:15,800 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2021-08-29 04:54:15,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:15,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024137384] [2021-08-29 04:54:15,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024137384] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:15,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 04:54:15,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 04:54:15,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982119712] [2021-08-29 04:54:15,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 04:54:15,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:15,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 04:54:15,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:15,904 INFO L87 Difference]: Start difference. First operand 3030 states and 3431 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:16,332 INFO L93 Difference]: Finished difference Result 6087 states and 6906 transitions. [2021-08-29 04:54:16,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 04:54:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 447 [2021-08-29 04:54:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:16,339 INFO L225 Difference]: With dead ends: 6087 [2021-08-29 04:54:16,339 INFO L226 Difference]: Without dead ends: 3208 [2021-08-29 04:54:16,342 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.67ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 04:54:16,344 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 318.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.37ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 403.08ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:16,344 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 0 Invalid, 748 Unknown, 0 Unchecked, 1.37ms Time], IncrementalHoareTripleChecker [46 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 403.08ms Time] [2021-08-29 04:54:16,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-08-29 04:54:16,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2021-08-29 04:54:16,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.0845163420270716) internal successors, (3285), 3029 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3285 transitions. [2021-08-29 04:54:16,382 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3285 transitions. Word has length 447 [2021-08-29 04:54:16,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:16,394 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3285 transitions. [2021-08-29 04:54:16,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3285 transitions. [2021-08-29 04:54:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-08-29 04:54:16,397 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:16,397 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:16,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-29 04:54:16,397 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:16,398 INFO L82 PathProgramCache]: Analyzing trace with hash -70393334, now seen corresponding path program 1 times [2021-08-29 04:54:16,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:16,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588499987] [2021-08-29 04:54:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:16,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:16,545 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 488 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-29 04:54:16,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:16,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588499987] [2021-08-29 04:54:16,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588499987] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:16,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532711012] [2021-08-29 04:54:16,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:16,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:16,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:16,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:16,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-29 04:54:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:16,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:16,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-08-29 04:54:17,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:17,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532711012] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:17,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:17,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:54:17,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981827578] [2021-08-29 04:54:17,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:17,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:17,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:17,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:17,352 INFO L87 Difference]: Start difference. First operand 3030 states and 3285 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:17,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:17,734 INFO L93 Difference]: Finished difference Result 6414 states and 7031 transitions. [2021-08-29 04:54:17,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2021-08-29 04:54:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:17,742 INFO L225 Difference]: With dead ends: 6414 [2021-08-29 04:54:17,742 INFO L226 Difference]: Without dead ends: 3564 [2021-08-29 04:54:17,744 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.65ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:17,745 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 281.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 358.12ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:17,745 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 0 Invalid, 681 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [52 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 358.12ms Time] [2021-08-29 04:54:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-08-29 04:54:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3564. [2021-08-29 04:54:17,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0937412293011508) internal successors, (3897), 3563 states have internal predecessors, (3897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3897 transitions. [2021-08-29 04:54:17,777 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3897 transitions. Word has length 473 [2021-08-29 04:54:17,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:17,778 INFO L470 AbstractCegarLoop]: Abstraction has 3564 states and 3897 transitions. [2021-08-29 04:54:17,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:17,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3897 transitions. [2021-08-29 04:54:17,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2021-08-29 04:54:17,781 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:17,781 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:17,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:17,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:17,999 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:17,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:17,999 INFO L82 PathProgramCache]: Analyzing trace with hash 355717040, now seen corresponding path program 1 times [2021-08-29 04:54:17,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:17,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126100304] [2021-08-29 04:54:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:18,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 460 proven. 46 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-08-29 04:54:18,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:18,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126100304] [2021-08-29 04:54:18,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126100304] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:18,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593489023] [2021-08-29 04:54:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:18,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:18,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:18,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:18,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-29 04:54:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:18,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:18,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:18,995 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2021-08-29 04:54:18,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:18,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593489023] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:18,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:18,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-08-29 04:54:18,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067364073] [2021-08-29 04:54:18,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:18,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:18,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:18,997 INFO L87 Difference]: Start difference. First operand 3564 states and 3897 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:19,393 INFO L93 Difference]: Finished difference Result 4634 states and 5053 transitions. [2021-08-29 04:54:19,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:19,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 527 [2021-08-29 04:54:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:19,404 INFO L225 Difference]: With dead ends: 4634 [2021-08-29 04:54:19,404 INFO L226 Difference]: Without dead ends: 4632 [2021-08-29 04:54:19,405 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.33ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 04:54:19,405 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 292.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 379.71ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:19,405 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 469 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [17 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 379.71ms Time] [2021-08-29 04:54:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-08-29 04:54:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 3742. [2021-08-29 04:54:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0954290296712108) internal successors, (4098), 3741 states have internal predecessors, (4098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:19,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4098 transitions. [2021-08-29 04:54:19,450 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4098 transitions. Word has length 527 [2021-08-29 04:54:19,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:19,451 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4098 transitions. [2021-08-29 04:54:19,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:19,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4098 transitions. [2021-08-29 04:54:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2021-08-29 04:54:19,455 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:19,455 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:19,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:19,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:19,673 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:19,673 INFO L82 PathProgramCache]: Analyzing trace with hash 49332470, now seen corresponding path program 1 times [2021-08-29 04:54:19,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:19,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349981959] [2021-08-29 04:54:19,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:19,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 891 proven. 11 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2021-08-29 04:54:19,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:19,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349981959] [2021-08-29 04:54:19,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349981959] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:19,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284104628] [2021-08-29 04:54:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:19,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:19,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:19,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:19,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-29 04:54:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:19,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:19,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 1033 trivial. 0 not checked. [2021-08-29 04:54:20,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:20,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284104628] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:20,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:20,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-08-29 04:54:20,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706948379] [2021-08-29 04:54:20,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:20,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:20,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:20,879 INFO L87 Difference]: Start difference. First operand 3742 states and 4098 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:21,238 INFO L93 Difference]: Finished difference Result 5168 states and 5627 transitions. [2021-08-29 04:54:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 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 574 [2021-08-29 04:54:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:21,249 INFO L225 Difference]: With dead ends: 5168 [2021-08-29 04:54:21,249 INFO L226 Difference]: Without dead ends: 5166 [2021-08-29 04:54:21,250 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 12.14ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 04:54:21,251 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 154 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 338.31ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:21,251 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 0 Invalid, 470 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [28 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 338.31ms Time] [2021-08-29 04:54:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2021-08-29 04:54:21,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 3742. [2021-08-29 04:54:21,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0954290296712108) internal successors, (4098), 3741 states have internal predecessors, (4098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:21,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4098 transitions. [2021-08-29 04:54:21,314 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4098 transitions. Word has length 574 [2021-08-29 04:54:21,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:21,314 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4098 transitions. [2021-08-29 04:54:21,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:21,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4098 transitions. [2021-08-29 04:54:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2021-08-29 04:54:21,320 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 04:54:21,320 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 04:54:21,339 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-29 04:54:21,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-29 04:54:21,537 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 04:54:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 04:54:21,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2014653968, now seen corresponding path program 1 times [2021-08-29 04:54:21,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 04:54:21,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654686296] [2021-08-29 04:54:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:21,538 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 04:54:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 872 proven. 195 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-08-29 04:54:21,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 04:54:21,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654686296] [2021-08-29 04:54:21,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654686296] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-29 04:54:21,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796737314] [2021-08-29 04:54:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 04:54:21,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:21,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 04:54:21,737 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-29 04:54:21,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-29 04:54:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 04:54:21,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-29 04:54:21,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 04:54:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2021-08-29 04:54:22,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-29 04:54:22,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796737314] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 04:54:22,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-29 04:54:22,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-08-29 04:54:22,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784689925] [2021-08-29 04:54:22,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 04:54:22,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 04:54:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 04:54:22,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:54:22,540 INFO L87 Difference]: Start difference. First operand 3742 states and 4098 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:22,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 04:54:22,940 INFO L93 Difference]: Finished difference Result 8192 states and 9025 transitions. [2021-08-29 04:54:22,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 04:54:22,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 581 [2021-08-29 04:54:22,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 04:54:22,951 INFO L225 Difference]: With dead ends: 8192 [2021-08-29 04:54:22,952 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 04:54:22,956 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 16.48ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-08-29 04:54:22,957 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 138 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.52ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 377.18ms IncrementalHoareTripleChecker+Time [2021-08-29 04:54:22,958 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 0 Invalid, 534 Unknown, 0 Unchecked, 0.52ms Time], IncrementalHoareTripleChecker [53 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 377.18ms Time] [2021-08-29 04:54:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 04:54:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 04:54:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 04:54:22,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 581 [2021-08-29 04:54:22,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 04:54:22,959 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 04:54:22,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 04:54:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 04:54:22,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 04:54:22,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 04:54:22,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-29 04:54:23,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-29 04:54:23,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 04:54:23,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:54:23,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:54:23,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,313 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,314 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-08-29 04:54:23,315 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-08-29 04:54:23,316 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-08-29 04:54:23,317 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-08-29 04:54:23,318 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-08-29 04:54:23,319 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-08-29 04:54:23,320 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,321 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,322 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-08-29 04:54:23,323 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2021-08-29 04:54:23,324 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-08-29 04:54:23,325 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-08-29 04:54:23,326 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-08-29 04:54:23,327 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,328 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,329 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-08-29 04:54:23,330 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-08-29 04:54:23,331 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-08-29 04:54:23,332 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and (<= (+ ~a12~0 43) 0) (<= ~a15~0 8) .cse1) (and (<= ~a12~0 80) .cse0) (and .cse0 .cse1))) [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-08-29 04:54:23,333 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-08-29 04:54:23,334 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-08-29 04:54:23,335 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-08-29 04:54:23,336 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a21~0 7))) (or (and (<= 7 ~a15~0) .cse0) (and (<= 9 ~a21~0) .cse0) (and (<= (+ ~a12~0 43) 0) (<= ~a15~0 8) .cse1) (and (<= ~a12~0 80) .cse0) (and .cse0 .cse1))) [2021-08-29 04:54:23,336 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,337 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,338 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-08-29 04:54:23,338 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-08-29 04:54:23,338 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-08-29 04:54:23,338 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-08-29 04:54:23,338 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-08-29 04:54:23,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 04:54:23,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:54:23 BoogieIcfgContainer [2021-08-29 04:54:23,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 04:54:23,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 04:54:23,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 04:54:23,353 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 04:54:23,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:54:07" (3/4) ... [2021-08-29 04:54:23,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 04:54:23,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 04:54:23,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 04:54:23,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:54:23,371 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 04:54:23,433 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 04:54:23,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 04:54:23,440 INFO L158 Benchmark]: Toolchain (without parser) took 16643.34ms. Allocated memory was 67.1MB in the beginning and 308.3MB in the end (delta: 241.2MB). Free memory was 45.3MB in the beginning and 153.6MB in the end (delta: -108.3MB). Peak memory consumption was 132.7MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,440 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 04:54:23,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.92ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 45.2MB in the beginning and 72.9MB in the end (delta: -27.7MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.66ms. Allocated memory is still 94.4MB. Free memory was 72.9MB in the beginning and 63.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,441 INFO L158 Benchmark]: Boogie Preprocessor took 55.45ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 57.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,441 INFO L158 Benchmark]: RCFGBuilder took 476.80ms. Allocated memory is still 94.4MB. Free memory was 57.4MB in the beginning and 56.4MB in the end (delta: 1.0MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,441 INFO L158 Benchmark]: TraceAbstraction took 15441.16ms. Allocated memory was 94.4MB in the beginning and 308.3MB in the end (delta: 213.9MB). Free memory was 55.5MB in the beginning and 172.5MB in the end (delta: -116.9MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,442 INFO L158 Benchmark]: Witness Printer took 86.85ms. Allocated memory is still 308.3MB. Free memory was 172.5MB in the beginning and 153.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-08-29 04:54:23,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.92ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 45.2MB in the beginning and 72.9MB in the end (delta: -27.7MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.66ms. Allocated memory is still 94.4MB. Free memory was 72.9MB in the beginning and 63.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.45ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 57.4MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 476.80ms. Allocated memory is still 94.4MB. Free memory was 57.4MB in the beginning and 56.4MB in the end (delta: 1.0MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15441.16ms. Allocated memory was 94.4MB in the beginning and 308.3MB in the end (delta: 213.9MB). Free memory was 55.5MB in the beginning and 172.5MB in the end (delta: -116.9MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. * Witness Printer took 86.85ms. Allocated memory is still 308.3MB. Free memory was 172.5MB in the beginning and 153.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15377.87ms, OverallIterations: 13, TraceHistogramMax: 6, EmptinessCheckTime: 77.17ms, AutomataDifference: 6711.02ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 127.31ms, InitialAbstractionConstructionTime: 13.22ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1918 SdHoareTripleChecker+Valid, 6144.91ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1918 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 4827.98ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 964 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7821 IncrementalHoareTripleChecker+Invalid, 8785 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 964 mSolverCounterUnsat, 0 mSDtfsCounter, 7821 mSolverCounterSat, 21.51ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2681 GetRequests, 2647 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 126.41ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=11, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 416.07ms AutomataMinimizationTime, 13 MinimizatonAttempts, 3026 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 83 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2134 FormulaSimplificationTreeSizeReduction, 40.85ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 198 FormulaSimplificationTreeSizeReductionInter, 80.31ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 170.24ms SsaConstructionTime, 775.76ms SatisfiabilityAnalysisTime, 5323.89ms InterpolantComputationTime, 7188 NumberOfCodeBlocks, 7188 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7169 ConstructedInterpolants, 0 QuantifiedInterpolants, 25076 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3524 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 10908/11346 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || ((a12 + 43 <= 0 && a15 <= 8) && a21 <= 7)) || (a12 <= 80 && a24 == 1)) || (a24 == 1 && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((7 <= a15 && a24 == 1) || (9 <= a21 && a24 == 1)) || ((a12 + 43 <= 0 && a15 <= 8) && a21 <= 7)) || (a12 <= 80 && a24 == 1)) || (a24 == 1 && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-08-29 04:54:23,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...