./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label35.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_label35.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 27f3eb1553a4773d3ad948aa9e62c9fff0038ffd5b126838e211f7b13e5fc516 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:44:39,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:44:39,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:44:39,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:44:39,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:44:39,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:44:39,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:44:39,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:44:39,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:44:39,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:44:39,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:44:39,444 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:44:39,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:44:39,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:44:39,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:44:39,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:44:39,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:44:39,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:44:39,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:44:39,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:44:39,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:44:39,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:44:39,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:44:39,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:44:39,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:44:39,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:44:39,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:44:39,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:44:39,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:44:39,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:44:39,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:44:39,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:44:39,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:44:39,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:44:39,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:44:39,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:44:39,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:44:39,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:44:39,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:44:39,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:44:39,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:44:39,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:44:39,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:44:39,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:44:39,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:44:39,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:44:39,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:44:39,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:44:39,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:44:39,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:44:39,497 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:44:39,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:44:39,497 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:44:39,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:44:39,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:44:39,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:44:39,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:44:39,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:44:39,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:44:39,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:39,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:44:39,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:44:39,500 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:44:39,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:44:39,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27f3eb1553a4773d3ad948aa9e62c9fff0038ffd5b126838e211f7b13e5fc516 [2021-12-17 04:44:39,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:44:39,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:44:39,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:44:39,715 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:44:39,715 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:44:39,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label35.c [2021-12-17 04:44:39,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837fab832/bd189b3299a2431f8fe83f0845cda1a9/FLAG8e9a8f66e [2021-12-17 04:44:40,220 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:44:40,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label35.c [2021-12-17 04:44:40,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837fab832/bd189b3299a2431f8fe83f0845cda1a9/FLAG8e9a8f66e [2021-12-17 04:44:40,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/837fab832/bd189b3299a2431f8fe83f0845cda1a9 [2021-12-17 04:44:40,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:44:40,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:44:40,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:40,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:44:40,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:44:40,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c3bd90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40, skipping insertion in model container [2021-12-17 04:44:40,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:44:40,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:44:40,469 WARN L230 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_label35.c[4618,4631] [2021-12-17 04:44:40,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:40,654 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:44:40,670 WARN L230 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_label35.c[4618,4631] [2021-12-17 04:44:40,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:44:40,729 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:44:40,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40 WrapperNode [2021-12-17 04:44:40,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:44:40,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:40,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:44:40,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:44:40,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,794 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-12-17 04:44:40,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:44:40,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:44:40,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:44:40,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:44:40,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:44:40,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:44:40,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:44:40,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:44:40,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (1/1) ... [2021-12-17 04:44:40,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:44:40,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:40,917 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) [2021-12-17 04:44:40,931 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 [2021-12-17 04:44:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:44:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:44:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:44:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:44:41,010 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:44:41,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:44:41,900 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:44:41,910 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:44:41,910 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:44:41,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:41 BoogieIcfgContainer [2021-12-17 04:44:41,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:44:41,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:44:41,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:44:41,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:44:41,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:44:40" (1/3) ... [2021-12-17 04:44:41,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c115676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:44:41, skipping insertion in model container [2021-12-17 04:44:41,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:44:40" (2/3) ... [2021-12-17 04:44:41,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c115676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:44:41, skipping insertion in model container [2021-12-17 04:44:41,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:41" (3/3) ... [2021-12-17 04:44:41,919 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label35.c [2021-12-17 04:44:41,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:44:41,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:44:41,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:44:41,981 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-17 04:44:41,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:44:42,001 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) [2021-12-17 04:44:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-17 04:44:42,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:42,009 INFO L514 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] [2021-12-17 04:44:42,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash 626000386, now seen corresponding path program 1 times [2021-12-17 04:44:42,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:42,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098572168] [2021-12-17 04:44:42,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:42,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:42,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:42,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098572168] [2021-12-17 04:44:42,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098572168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:42,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:42,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:44:42,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544364665] [2021-12-17 04:44:42,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:42,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:42,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:42,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:42,255 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 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:42,857 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2021-12-17 04:44:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:42,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2021-12-17 04:44:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:42,867 INFO L225 Difference]: With dead ends: 669 [2021-12-17 04:44:42,867 INFO L226 Difference]: Without dead ends: 360 [2021-12-17 04:44:42,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:42,872 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 162 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:42,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 77 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:44:42,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-17 04:44:42,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-12-17 04:44:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.6378830083565459) internal successors, (588), 359 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2021-12-17 04:44:42,926 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 44 [2021-12-17 04:44:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:42,939 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2021-12-17 04:44:42,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2021-12-17 04:44:42,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-17 04:44:42,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:42,942 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:42,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:44:42,943 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:42,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:42,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2110758792, now seen corresponding path program 1 times [2021-12-17 04:44:42,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:42,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009339464] [2021-12-17 04:44:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:42,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:43,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:43,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009339464] [2021-12-17 04:44:43,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009339464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:43,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:43,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:44:43,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773908533] [2021-12-17 04:44:43,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:43,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:43,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:43,017 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:43,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:43,649 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2021-12-17 04:44:43,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:43,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-12-17 04:44:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:43,652 INFO L225 Difference]: With dead ends: 1074 [2021-12-17 04:44:43,652 INFO L226 Difference]: Without dead ends: 716 [2021-12-17 04:44:43,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:43,654 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 117 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:43,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 51 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:44:43,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-17 04:44:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2021-12-17 04:44:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.523076923076923) internal successors, (1089), 715 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:43,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1089 transitions. [2021-12-17 04:44:43,672 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1089 transitions. Word has length 109 [2021-12-17 04:44:43,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:43,672 INFO L470 AbstractCegarLoop]: Abstraction has 716 states and 1089 transitions. [2021-12-17 04:44:43,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:43,673 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1089 transitions. [2021-12-17 04:44:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-17 04:44:43,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:43,674 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:43,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:44:43,675 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:43,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash 2136507473, now seen corresponding path program 1 times [2021-12-17 04:44:43,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:43,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136178917] [2021-12-17 04:44:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:43,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:43,718 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:43,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:43,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136178917] [2021-12-17 04:44:43,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136178917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:43,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:43,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:44:43,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958761062] [2021-12-17 04:44:43,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:43,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:43,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:43,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:43,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:43,721 INFO L87 Difference]: Start difference. First operand 716 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:44,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:44,495 INFO L93 Difference]: Finished difference Result 1786 states and 2718 transitions. [2021-12-17 04:44:44,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2021-12-17 04:44:44,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:44,498 INFO L225 Difference]: With dead ends: 1786 [2021-12-17 04:44:44,498 INFO L226 Difference]: Without dead ends: 1072 [2021-12-17 04:44:44,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:44,500 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:44,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:44:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-12-17 04:44:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2021-12-17 04:44:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.377217553688142) internal successors, (1475), 1071 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:44,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1475 transitions. [2021-12-17 04:44:44,513 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1475 transitions. Word has length 110 [2021-12-17 04:44:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:44,513 INFO L470 AbstractCegarLoop]: Abstraction has 1072 states and 1475 transitions. [2021-12-17 04:44:44,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:44,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1475 transitions. [2021-12-17 04:44:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-17 04:44:44,515 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:44,515 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:44,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 04:44:44,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:44,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:44,516 INFO L85 PathProgramCache]: Analyzing trace with hash 490952556, now seen corresponding path program 1 times [2021-12-17 04:44:44,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:44,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739818329] [2021-12-17 04:44:44,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:44,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:44,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:44,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739818329] [2021-12-17 04:44:44,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739818329] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:44,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:44,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:44:44,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3406104] [2021-12-17 04:44:44,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:44,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:44,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:44,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:44,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:44,561 INFO L87 Difference]: Start difference. First operand 1072 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:45,030 INFO L93 Difference]: Finished difference Result 2854 states and 3878 transitions. [2021-12-17 04:44:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:45,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2021-12-17 04:44:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:45,035 INFO L225 Difference]: With dead ends: 2854 [2021-12-17 04:44:45,035 INFO L226 Difference]: Without dead ends: 1784 [2021-12-17 04:44:45,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:45,037 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:45,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 107 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-12-17 04:44:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1428. [2021-12-17 04:44:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.3125437981779957) internal successors, (1873), 1427 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1873 transitions. [2021-12-17 04:44:45,055 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1873 transitions. Word has length 112 [2021-12-17 04:44:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:45,055 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 1873 transitions. [2021-12-17 04:44:45,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1873 transitions. [2021-12-17 04:44:45,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 04:44:45,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:45,056 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:45,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:44:45,057 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:45,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:45,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1344857515, now seen corresponding path program 1 times [2021-12-17 04:44:45,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:45,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457504762] [2021-12-17 04:44:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:45,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:44:45,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:45,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457504762] [2021-12-17 04:44:45,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457504762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:45,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:45,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:45,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804181982] [2021-12-17 04:44:45,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:45,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:45,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:45,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:45,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:45,129 INFO L87 Difference]: Start difference. First operand 1428 states and 1873 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:45,902 INFO L93 Difference]: Finished difference Result 3388 states and 4338 transitions. [2021-12-17 04:44:45,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:45,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-12-17 04:44:45,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:45,909 INFO L225 Difference]: With dead ends: 3388 [2021-12-17 04:44:45,909 INFO L226 Difference]: Without dead ends: 1962 [2021-12-17 04:44:45,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:44:45,913 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 431 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:45,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 122 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:44:45,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2021-12-17 04:44:45,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2021-12-17 04:44:45,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.245792962774095) internal successors, (2443), 1961 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2443 transitions. [2021-12-17 04:44:45,960 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2443 transitions. Word has length 123 [2021-12-17 04:44:45,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:45,961 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2443 transitions. [2021-12-17 04:44:45,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2443 transitions. [2021-12-17 04:44:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-17 04:44:45,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:45,968 INFO L514 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-17 04:44:45,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 04:44:45,968 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:45,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:45,969 INFO L85 PathProgramCache]: Analyzing trace with hash -870347575, now seen corresponding path program 1 times [2021-12-17 04:44:45,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:45,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421513046] [2021-12-17 04:44:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:45,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-17 04:44:46,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:46,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421513046] [2021-12-17 04:44:46,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421513046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:46,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:46,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:46,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793779009] [2021-12-17 04:44:46,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:46,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:46,046 INFO L87 Difference]: Start difference. First operand 1962 states and 2443 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) [2021-12-17 04:44:46,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:46,641 INFO L93 Difference]: Finished difference Result 3951 states and 4931 transitions. [2021-12-17 04:44:46,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:46,641 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 203 [2021-12-17 04:44:46,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:46,646 INFO L225 Difference]: With dead ends: 3951 [2021-12-17 04:44:46,647 INFO L226 Difference]: Without dead ends: 2140 [2021-12-17 04:44:46,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:46,649 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 103 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:46,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 114 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:44:46,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-17 04:44:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2021-12-17 04:44:46,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.1494135645079042) internal successors, (2254), 1961 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2254 transitions. [2021-12-17 04:44:46,698 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2254 transitions. Word has length 203 [2021-12-17 04:44:46,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:46,698 INFO L470 AbstractCegarLoop]: Abstraction has 1962 states and 2254 transitions. [2021-12-17 04:44:46,699 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) [2021-12-17 04:44:46,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2254 transitions. [2021-12-17 04:44:46,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-12-17 04:44:46,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:46,701 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:46,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 04:44:46,702 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:46,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:46,702 INFO L85 PathProgramCache]: Analyzing trace with hash -960636217, now seen corresponding path program 1 times [2021-12-17 04:44:46,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:46,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142501774] [2021-12-17 04:44:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:46,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-17 04:44:46,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:46,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142501774] [2021-12-17 04:44:46,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142501774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:46,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:46,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:46,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481068605] [2021-12-17 04:44:46,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:46,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:46,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:46,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:46,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:46,785 INFO L87 Difference]: Start difference. First operand 1962 states and 2254 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:47,202 INFO L93 Difference]: Finished difference Result 4278 states and 4956 transitions. [2021-12-17 04:44:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:47,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 324 [2021-12-17 04:44:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:47,208 INFO L225 Difference]: With dead ends: 4278 [2021-12-17 04:44:47,208 INFO L226 Difference]: Without dead ends: 2496 [2021-12-17 04:44:47,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:44:47,210 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:47,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:47,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2021-12-17 04:44:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2021-12-17 04:44:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.1374749498997996) internal successors, (2838), 2495 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2838 transitions. [2021-12-17 04:44:47,238 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2838 transitions. Word has length 324 [2021-12-17 04:44:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:47,239 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2838 transitions. [2021-12-17 04:44:47,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:47,239 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2838 transitions. [2021-12-17 04:44:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-12-17 04:44:47,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:47,260 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:47,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 04:44:47,260 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:47,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:47,261 INFO L85 PathProgramCache]: Analyzing trace with hash -353119723, now seen corresponding path program 1 times [2021-12-17 04:44:47,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:47,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644296513] [2021-12-17 04:44:47,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:47,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:47,348 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-12-17 04:44:47,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:47,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644296513] [2021-12-17 04:44:47,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644296513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:47,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:44:47,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:44:47,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609034365] [2021-12-17 04:44:47,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:47,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:44:47,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:44:47,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:47,351 INFO L87 Difference]: Start difference. First operand 2496 states and 2838 transitions. Second operand has 4 states, 4 states have (on average 38.25) 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) [2021-12-17 04:44:47,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:47,976 INFO L93 Difference]: Finished difference Result 5048 states and 5749 transitions. [2021-12-17 04:44:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:44:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) 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 335 [2021-12-17 04:44:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:47,983 INFO L225 Difference]: With dead ends: 5048 [2021-12-17 04:44:47,983 INFO L226 Difference]: Without dead ends: 2674 [2021-12-17 04:44:47,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:44:47,985 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:47,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:44:47,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-12-17 04:44:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2021-12-17 04:44:48,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0913827655310622) internal successors, (2723), 2495 states have internal predecessors, (2723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2723 transitions. [2021-12-17 04:44:48,041 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2723 transitions. Word has length 335 [2021-12-17 04:44:48,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:48,043 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2723 transitions. [2021-12-17 04:44:48,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) 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) [2021-12-17 04:44:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2723 transitions. [2021-12-17 04:44:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-17 04:44:48,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:48,046 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:48,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 04:44:48,048 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1459987587, now seen corresponding path program 1 times [2021-12-17 04:44:48,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:48,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021367428] [2021-12-17 04:44:48,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:48,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 302 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 04:44:48,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:48,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021367428] [2021-12-17 04:44:48,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021367428] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:48,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759589267] [2021-12-17 04:44:48,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:48,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:48,162 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) [2021-12-17 04:44:48,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:44:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:48,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:48,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-12-17 04:44:48,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:48,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759589267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:48,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:48,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:48,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377454214] [2021-12-17 04:44:48,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:48,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:48,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:48,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:48,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:48,897 INFO L87 Difference]: Start difference. First operand 2496 states and 2723 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:49,407 INFO L93 Difference]: Finished difference Result 5346 states and 5836 transitions. [2021-12-17 04:44:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2021-12-17 04:44:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:49,413 INFO L225 Difference]: With dead ends: 5346 [2021-12-17 04:44:49,414 INFO L226 Difference]: Without dead ends: 2674 [2021-12-17 04:44:49,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:49,417 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 137 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:49,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 247 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:44:49,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-12-17 04:44:49,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2021-12-17 04:44:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0876132930513596) internal successors, (2520), 2317 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2520 transitions. [2021-12-17 04:44:49,449 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2520 transitions. Word has length 348 [2021-12-17 04:44:49,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:49,449 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2520 transitions. [2021-12-17 04:44:49,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:49,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2520 transitions. [2021-12-17 04:44:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-12-17 04:44:49,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:49,453 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:49,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:49,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:49,672 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:49,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2034118614, now seen corresponding path program 1 times [2021-12-17 04:44:49,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:49,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749575424] [2021-12-17 04:44:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:49,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 322 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 04:44:49,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:49,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749575424] [2021-12-17 04:44:49,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749575424] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:49,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22485192] [2021-12-17 04:44:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:49,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:49,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:49,772 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) [2021-12-17 04:44:49,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:44:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:49,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:49,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-12-17 04:44:50,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:50,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22485192] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:50,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:50,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:50,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198072047] [2021-12-17 04:44:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:50,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:50,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:50,314 INFO L87 Difference]: Start difference. First operand 2318 states and 2520 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:50,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:50,681 INFO L93 Difference]: Finished difference Result 5168 states and 5678 transitions. [2021-12-17 04:44:50,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:50,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 358 [2021-12-17 04:44:50,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:50,688 INFO L225 Difference]: With dead ends: 5168 [2021-12-17 04:44:50,688 INFO L226 Difference]: Without dead ends: 3030 [2021-12-17 04:44:50,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:50,691 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 137 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:50,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 233 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:50,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-17 04:44:50,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2021-12-17 04:44:50,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.089038533482978) internal successors, (2911), 2673 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:50,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2911 transitions. [2021-12-17 04:44:50,719 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2911 transitions. Word has length 358 [2021-12-17 04:44:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:50,720 INFO L470 AbstractCegarLoop]: Abstraction has 2674 states and 2911 transitions. [2021-12-17 04:44:50,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2911 transitions. [2021-12-17 04:44:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-17 04:44:50,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:50,723 INFO L514 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:50,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:50,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-17 04:44:50,938 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:50,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2094266508, now seen corresponding path program 1 times [2021-12-17 04:44:50,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:50,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542562564] [2021-12-17 04:44:50,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:50,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 346 proven. 23 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-17 04:44:51,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:51,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542562564] [2021-12-17 04:44:51,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542562564] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:51,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574954049] [2021-12-17 04:44:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:51,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:51,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:51,076 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) [2021-12-17 04:44:51,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:44:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:51,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:51,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-12-17 04:44:51,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:51,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574954049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:51,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:51,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:51,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368848017] [2021-12-17 04:44:51,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:51,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:51,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:51,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:51,669 INFO L87 Difference]: Start difference. First operand 2674 states and 2911 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:52,008 INFO L93 Difference]: Finished difference Result 3210 states and 3497 transitions. [2021-12-17 04:44:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:52,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 370 [2021-12-17 04:44:52,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:52,020 INFO L225 Difference]: With dead ends: 3210 [2021-12-17 04:44:52,020 INFO L226 Difference]: Without dead ends: 3208 [2021-12-17 04:44:52,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:52,021 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 158 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:52,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 11 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:52,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-12-17 04:44:52,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2496. [2021-12-17 04:44:52,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0933867735470941) internal successors, (2728), 2495 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2728 transitions. [2021-12-17 04:44:52,061 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2728 transitions. Word has length 370 [2021-12-17 04:44:52,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:52,061 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 2728 transitions. [2021-12-17 04:44:52,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2728 transitions. [2021-12-17 04:44:52,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-12-17 04:44:52,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:52,067 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:52,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:52,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:52,284 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1908514712, now seen corresponding path program 1 times [2021-12-17 04:44:52,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:52,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060776360] [2021-12-17 04:44:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:52,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 517 proven. 23 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-12-17 04:44:52,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060776360] [2021-12-17 04:44:52,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060776360] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633647925] [2021-12-17 04:44:52,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:52,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:52,387 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) [2021-12-17 04:44:52,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-17 04:44:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:52,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:52,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2021-12-17 04:44:53,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:53,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633647925] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:53,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:53,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:53,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658807503] [2021-12-17 04:44:53,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:53,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:53,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:53,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:53,058 INFO L87 Difference]: Start difference. First operand 2496 states and 2728 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:53,446 INFO L93 Difference]: Finished difference Result 4990 states and 5458 transitions. [2021-12-17 04:44:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 457 [2021-12-17 04:44:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:53,454 INFO L225 Difference]: With dead ends: 4990 [2021-12-17 04:44:53,454 INFO L226 Difference]: Without dead ends: 2674 [2021-12-17 04:44:53,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:53,457 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 137 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:53,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 245 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:44:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2021-12-17 04:44:53,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2021-12-17 04:44:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0889080707811825) internal successors, (2523), 2317 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:53,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2523 transitions. [2021-12-17 04:44:53,486 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2523 transitions. Word has length 457 [2021-12-17 04:44:53,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:53,487 INFO L470 AbstractCegarLoop]: Abstraction has 2318 states and 2523 transitions. [2021-12-17 04:44:53,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:53,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2523 transitions. [2021-12-17 04:44:53,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-12-17 04:44:53,489 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:53,490 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:53,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:53,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:53,719 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1883604009, now seen corresponding path program 1 times [2021-12-17 04:44:53,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:53,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016593561] [2021-12-17 04:44:53,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:53,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 529 proven. 23 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-12-17 04:44:53,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:53,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016593561] [2021-12-17 04:44:53,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016593561] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:53,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833818823] [2021-12-17 04:44:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:53,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:53,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:53,844 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) [2021-12-17 04:44:53,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-17 04:44:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:53,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:53,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2021-12-17 04:44:54,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:54,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833818823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:54,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:54,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:54,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742882524] [2021-12-17 04:44:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:54,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:54,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:54,549 INFO L87 Difference]: Start difference. First operand 2318 states and 2523 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:54,910 INFO L93 Difference]: Finished difference Result 5702 states and 6268 transitions. [2021-12-17 04:44:54,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 463 [2021-12-17 04:44:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:54,918 INFO L225 Difference]: With dead ends: 5702 [2021-12-17 04:44:54,918 INFO L226 Difference]: Without dead ends: 3742 [2021-12-17 04:44:54,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:54,920 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 141 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:54,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 60 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:54,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-12-17 04:44:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2021-12-17 04:44:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0841949778434268) internal successors, (3670), 3385 states have internal predecessors, (3670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3670 transitions. [2021-12-17 04:44:54,952 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3670 transitions. Word has length 463 [2021-12-17 04:44:54,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:54,953 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3670 transitions. [2021-12-17 04:44:54,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3670 transitions. [2021-12-17 04:44:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-12-17 04:44:54,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:54,956 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:54,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:55,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-17 04:44:55,175 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:55,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:55,176 INFO L85 PathProgramCache]: Analyzing trace with hash -406976474, now seen corresponding path program 1 times [2021-12-17 04:44:55,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:55,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083511283] [2021-12-17 04:44:55,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:55,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 557 proven. 23 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-17 04:44:55,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083511283] [2021-12-17 04:44:55,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083511283] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:55,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177523639] [2021-12-17 04:44:55,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:55,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:55,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:55,326 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) [2021-12-17 04:44:55,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-17 04:44:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:55,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:55,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:56,041 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-12-17 04:44:56,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:56,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177523639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:56,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:56,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:56,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870728659] [2021-12-17 04:44:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:56,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:56,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:56,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:56,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:56,043 INFO L87 Difference]: Start difference. First operand 3386 states and 3670 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:56,416 INFO L93 Difference]: Finished difference Result 7482 states and 8170 transitions. [2021-12-17 04:44:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:56,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 477 [2021-12-17 04:44:56,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:56,424 INFO L225 Difference]: With dead ends: 7482 [2021-12-17 04:44:56,424 INFO L226 Difference]: Without dead ends: 4454 [2021-12-17 04:44:56,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:56,427 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 141 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:56,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 60 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:56,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2021-12-17 04:44:56,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3742. [2021-12-17 04:44:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0911520983694198) internal successors, (4082), 3741 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4082 transitions. [2021-12-17 04:44:56,466 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4082 transitions. Word has length 477 [2021-12-17 04:44:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:56,467 INFO L470 AbstractCegarLoop]: Abstraction has 3742 states and 4082 transitions. [2021-12-17 04:44:56,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4082 transitions. [2021-12-17 04:44:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2021-12-17 04:44:56,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:44:56,472 INFO L514 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:56,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:56,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:56,689 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:44:56,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:44:56,690 INFO L85 PathProgramCache]: Analyzing trace with hash 849132718, now seen corresponding path program 1 times [2021-12-17 04:44:56,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:44:56,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409455763] [2021-12-17 04:44:56,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:56,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:44:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 612 proven. 23 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-17 04:44:56,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:44:56,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409455763] [2021-12-17 04:44:56,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409455763] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:44:56,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608846389] [2021-12-17 04:44:56,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:44:56,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:56,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:44:56,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:44:56,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-17 04:44:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:44:56,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:44:56,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:44:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2021-12-17 04:44:57,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:44:57,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608846389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:44:57,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:44:57,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-17 04:44:57,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396592850] [2021-12-17 04:44:57,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:44:57,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:44:57,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:44:57,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:44:57,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:57,600 INFO L87 Difference]: Start difference. First operand 3742 states and 4082 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:44:57,947 INFO L93 Difference]: Finished difference Result 7836 states and 8615 transitions. [2021-12-17 04:44:57,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:44:57,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 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 525 [2021-12-17 04:44:57,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:44:57,948 INFO L225 Difference]: With dead ends: 7836 [2021-12-17 04:44:57,948 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:44:57,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-17 04:44:57,970 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 140 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:44:57,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 202 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:44:57,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:44:57,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:44:57,971 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) [2021-12-17 04:44:57,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:44:57,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 525 [2021-12-17 04:44:57,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:44:57,971 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:44:57,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:44:57,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:44:57,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:44:57,974 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:44:57,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-17 04:44:58,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:44:58,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-12-17 04:44:59,280 INFO L858 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-12-17 04:44:59,281 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-12-17 04:44:59,282 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-12-17 04:44:59,283 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-17 04:44:59,284 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,285 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 146) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-17 04:44:59,286 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-17 04:44:59,287 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-12-17 04:44:59,288 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-12-17 04:44:59,289 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L854 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 5))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse0) (and (<= ~a21~0 6) .cse0) (and .cse0 (<= ~a12~0 80)) (and .cse0 (<= 9 ~a21~0)) (and .cse1 (<= (+ ~a12~0 49) 0) (<= ~a21~0 7)))) [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-12-17 04:44:59,290 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,291 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,291 INFO L861 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-12-17 04:44:59,291 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-12-17 04:44:59,291 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-12-17 04:44:59,291 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-17 04:44:59,291 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-17 04:44:59,307 INFO L858 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-12-17 04:44:59,307 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-12-17 04:44:59,307 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-12-17 04:44:59,308 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L854 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse1 (<= ~a15~0 5))) (or (and (<= 7 ~a15~0) .cse0) (and .cse1 .cse0) (and (<= ~a21~0 6) .cse0) (and .cse0 (<= ~a12~0 80)) (and .cse0 (<= 9 ~a21~0)) (and .cse1 (<= (+ ~a12~0 49) 0) (<= ~a21~0 7)))) [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-12-17 04:44:59,309 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,310 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-12-17 04:44:59,311 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-12-17 04:44:59,311 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-17 04:44:59,311 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-17 04:44:59,311 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-17 04:44:59,314 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:44:59,315 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:44:59,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:44:59 BoogieIcfgContainer [2021-12-17 04:44:59,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:44:59,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:44:59,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:44:59,348 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:44:59,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:44:41" (3/4) ... [2021-12-17 04:44:59,350 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:44:59,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:44:59,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:44:59,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:44:59,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:44:59,520 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:44:59,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:44:59,524 INFO L158 Benchmark]: Toolchain (without parser) took 19275.47ms. Allocated memory was 123.7MB in the beginning and 339.7MB in the end (delta: 216.0MB). Free memory was 94.4MB in the beginning and 224.9MB in the end (delta: -130.4MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,525 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 88.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:44:59,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.81ms. Allocated memory is still 123.7MB. Free memory was 94.0MB in the beginning and 79.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.49ms. Allocated memory is still 123.7MB. Free memory was 79.0MB in the beginning and 69.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,526 INFO L158 Benchmark]: Boogie Preprocessor took 83.23ms. Allocated memory is still 123.7MB. Free memory was 69.5MB in the beginning and 63.7MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,526 INFO L158 Benchmark]: RCFGBuilder took 1033.53ms. Allocated memory is still 123.7MB. Free memory was 63.7MB in the beginning and 85.5MB in the end (delta: -21.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,526 INFO L158 Benchmark]: TraceAbstraction took 17433.21ms. Allocated memory was 123.7MB in the beginning and 339.7MB in the end (delta: 216.0MB). Free memory was 84.8MB in the beginning and 243.8MB in the end (delta: -159.0MB). Peak memory consumption was 207.8MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,527 INFO L158 Benchmark]: Witness Printer took 176.33ms. Allocated memory is still 339.7MB. Free memory was 243.8MB in the beginning and 224.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-17 04:44:59,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 88.1MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.81ms. Allocated memory is still 123.7MB. Free memory was 94.0MB in the beginning and 79.0MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.49ms. Allocated memory is still 123.7MB. Free memory was 79.0MB in the beginning and 69.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.23ms. Allocated memory is still 123.7MB. Free memory was 69.5MB in the beginning and 63.7MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1033.53ms. Allocated memory is still 123.7MB. Free memory was 63.7MB in the beginning and 85.5MB in the end (delta: -21.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * TraceAbstraction took 17433.21ms. Allocated memory was 123.7MB in the beginning and 339.7MB in the end (delta: 216.0MB). Free memory was 84.8MB in the beginning and 243.8MB in the end (delta: -159.0MB). Peak memory consumption was 207.8MB. Max. memory is 16.1GB. * Witness Printer took 176.33ms. Allocated memory is still 339.7MB. Free memory was 243.8MB in the beginning and 224.9MB 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 146]: 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: 17.3s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2306 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2306 mSDsluCounter, 1679 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 973 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7753 IncrementalHoareTripleChecker+Invalid, 8726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 973 mSolverCounterUnsat, 1600 mSDtfsCounter, 7753 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3040 GetRequests, 3000 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3742occurred in iteration=14, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 3560 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 65 NumberOfFragments, 97 HoareAnnotationTreeSize, 3 FomulaSimplifications, 646 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7328 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 7356 NumberOfCodeBlocks, 7356 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 7334 ConstructedInterpolants, 0 QuantifiedInterpolants, 29063 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3962 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 9222/9383 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) || (a15 <= 5 && a24 == 1)) || (a21 <= 6 && a24 == 1)) || (a24 == 1 && a12 <= 80)) || (a24 == 1 && 9 <= a21)) || ((a15 <= 5 && a12 + 49 <= 0) && a21 <= 7) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((7 <= a15 && a24 == 1) || (a15 <= 5 && a24 == 1)) || (a21 <= 6 && a24 == 1)) || (a24 == 1 && a12 <= 80)) || (a24 == 1 && 9 <= a21)) || ((a15 <= 5 && a12 + 49 <= 0) && a21 <= 7) RESULT: Ultimate proved your program to be correct! [2021-12-17 04:44:59,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE