./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label28.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label28.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 8ff48638f08507efa79a38e2e8775c5b4b14feea4f002913b53cd095f4b7874d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 12:20:11,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:20:11,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:20:11,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:20:11,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:20:11,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:20:11,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:20:11,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:20:11,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:20:11,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:20:11,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:20:11,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:20:11,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:20:11,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:20:11,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:20:11,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:20:11,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:20:11,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:20:11,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:20:11,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:20:11,469 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:20:11,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:20:11,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:20:11,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:20:11,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:20:11,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:20:11,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:20:11,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:20:11,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:20:11,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:20:11,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:20:11,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:20:11,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:20:11,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:20:11,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:20:11,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:20:11,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:20:11,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:20:11,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:20:11,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:20:11,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:20:11,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:20:11,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 12:20:11,516 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:20:11,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:20:11,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:20:11,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:20:11,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 12:20:11,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 12:20:11,518 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:20:11,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:20:11,518 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:20:11,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:20:11,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 12:20:11,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:20:11,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:20:11,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:20:11,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 12:20:11,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:20:11,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:20:11,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 12:20:11,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:20:11,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:20:11,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 12:20:11,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 12:20:11,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:20:11,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 12:20:11,523 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:20:11,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 12:20:11,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 12:20:11,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ff48638f08507efa79a38e2e8775c5b4b14feea4f002913b53cd095f4b7874d [2022-07-22 12:20:11,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:20:11,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:20:11,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:20:11,750 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:20:11,750 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:20:11,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2022-07-22 12:20:11,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9a1316/821f8737212a4836a3f385387d3f1a84/FLAG0c4a05b5e [2022-07-22 12:20:12,250 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:20:12,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label28.c [2022-07-22 12:20:12,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9a1316/821f8737212a4836a3f385387d3f1a84/FLAG0c4a05b5e [2022-07-22 12:20:12,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9a1316/821f8737212a4836a3f385387d3f1a84 [2022-07-22 12:20:12,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:20:12,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 12:20:12,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:20:12,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:20:12,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:20:12,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:20:12" (1/1) ... [2022-07-22 12:20:12,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69467a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:12, skipping insertion in model container [2022-07-22 12:20:12,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:20:12" (1/1) ... [2022-07-22 12:20:12,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:20:12,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:20:13,056 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/Problem11_label28.c[6999,7012] [2022-07-22 12:20:13,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:20:13,242 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:20:13,256 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/Problem11_label28.c[6999,7012] [2022-07-22 12:20:13,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:20:13,370 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:20:13,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13 WrapperNode [2022-07-22 12:20:13,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:20:13,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:20:13,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:20:13,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:20:13,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,489 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2022-07-22 12:20:13,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:20:13,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:20:13,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:20:13,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:20:13,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:20:13,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:20:13,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:20:13,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:20:13,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (1/1) ... [2022-07-22 12:20:13,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:20:13,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:13,624 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) [2022-07-22 12:20:13,640 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 [2022-07-22 12:20:13,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:20:13,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:20:13,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:20:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:20:13,704 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:20:13,705 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:20:14,741 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:20:14,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:20:14,748 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 12:20:14,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:20:14 BoogieIcfgContainer [2022-07-22 12:20:14,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:20:14,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 12:20:14,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 12:20:14,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 12:20:14,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:20:12" (1/3) ... [2022-07-22 12:20:14,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c8f179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:20:14, skipping insertion in model container [2022-07-22 12:20:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:20:13" (2/3) ... [2022-07-22 12:20:14,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c8f179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:20:14, skipping insertion in model container [2022-07-22 12:20:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:20:14" (3/3) ... [2022-07-22 12:20:14,755 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label28.c [2022-07-22 12:20:14,765 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 12:20:14,765 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 12:20:14,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 12:20:14,805 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@59c7c307, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30c8c9fb [2022-07-22 12:20:14,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 12:20:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 12:20:14,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:14,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:14,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 563919826, now seen corresponding path program 1 times [2022-07-22 12:20:14,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:14,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035597915] [2022-07-22 12:20:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:15,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:15,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035597915] [2022-07-22 12:20:15,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035597915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:15,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:15,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:20:15,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931214808] [2022-07-22 12:20:15,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:15,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:15,047 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:15,879 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2022-07-22 12:20:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:15,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-07-22 12:20:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:15,889 INFO L225 Difference]: With dead ends: 776 [2022-07-22 12:20:15,889 INFO L226 Difference]: Without dead ends: 413 [2022-07-22 12:20:15,892 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:15,894 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 179 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:15,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 12:20:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-07-22 12:20:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2022-07-22 12:20:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2022-07-22 12:20:15,937 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 48 [2022-07-22 12:20:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:15,937 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2022-07-22 12:20:15,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2022-07-22 12:20:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-22 12:20:15,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:15,940 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:15,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 12:20:15,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2122398730, now seen corresponding path program 1 times [2022-07-22 12:20:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061178316] [2022-07-22 12:20:15,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:15,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:16,076 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:16,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:16,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061178316] [2022-07-22 12:20:16,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061178316] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:16,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:16,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:20:16,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890958067] [2022-07-22 12:20:16,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:16,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:16,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:16,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:16,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:16,079 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:16,681 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2022-07-22 12:20:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:16,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-07-22 12:20:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:16,684 INFO L225 Difference]: With dead ends: 1209 [2022-07-22 12:20:16,684 INFO L226 Difference]: Without dead ends: 800 [2022-07-22 12:20:16,685 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:16,686 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:16,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 122 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:20:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-07-22 12:20:16,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2022-07-22 12:20:16,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3842239185750635) internal successors, (1088), 786 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1088 transitions. [2022-07-22 12:20:16,720 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1088 transitions. Word has length 116 [2022-07-22 12:20:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:16,722 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1088 transitions. [2022-07-22 12:20:16,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1088 transitions. [2022-07-22 12:20:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-22 12:20:16,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:16,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:16,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 12:20:16,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash 151352741, now seen corresponding path program 1 times [2022-07-22 12:20:16,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:16,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902155790] [2022-07-22 12:20:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:16,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:16,814 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:16,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:16,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902155790] [2022-07-22 12:20:16,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902155790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:16,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:16,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:20:16,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585121456] [2022-07-22 12:20:16,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:16,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:16,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:16,817 INFO L87 Difference]: Start difference. First operand 787 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:17,369 INFO L93 Difference]: Finished difference Result 1942 states and 2629 transitions. [2022-07-22 12:20:17,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:17,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-22 12:20:17,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:17,372 INFO L225 Difference]: With dead ends: 1942 [2022-07-22 12:20:17,372 INFO L226 Difference]: Without dead ends: 1157 [2022-07-22 12:20:17,373 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:17,374 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:17,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:17,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-07-22 12:20:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2022-07-22 12:20:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277056277056277) internal successors, (1475), 1155 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) [2022-07-22 12:20:17,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1475 transitions. [2022-07-22 12:20:17,391 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1475 transitions. Word has length 118 [2022-07-22 12:20:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:17,391 INFO L495 AbstractCegarLoop]: Abstraction has 1156 states and 1475 transitions. [2022-07-22 12:20:17,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1475 transitions. [2022-07-22 12:20:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-22 12:20:17,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:17,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:17,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 12:20:17,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1565625650, now seen corresponding path program 1 times [2022-07-22 12:20:17,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:17,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953683769] [2022-07-22 12:20:17,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:17,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:17,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953683769] [2022-07-22 12:20:17,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953683769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622607201] [2022-07-22 12:20:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:17,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:17,472 INFO L87 Difference]: Start difference. First operand 1156 states and 1475 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:18,029 INFO L93 Difference]: Finished difference Result 2691 states and 3513 transitions. [2022-07-22 12:20:18,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:18,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2022-07-22 12:20:18,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:18,034 INFO L225 Difference]: With dead ends: 2691 [2022-07-22 12:20:18,034 INFO L226 Difference]: Without dead ends: 1721 [2022-07-22 12:20:18,036 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:18,037 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 158 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:18,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 336 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2022-07-22 12:20:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1528. [2022-07-22 12:20:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 1527 states have (on average 1.260641781270465) internal successors, (1925), 1527 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1925 transitions. [2022-07-22 12:20:18,074 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1925 transitions. Word has length 160 [2022-07-22 12:20:18,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:18,075 INFO L495 AbstractCegarLoop]: Abstraction has 1528 states and 1925 transitions. [2022-07-22 12:20:18,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,075 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1925 transitions. [2022-07-22 12:20:18,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 12:20:18,077 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:18,078 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:18,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 12:20:18,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:18,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:18,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1640701857, now seen corresponding path program 1 times [2022-07-22 12:20:18,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:18,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247365463] [2022-07-22 12:20:18,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:18,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-07-22 12:20:18,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:18,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247365463] [2022-07-22 12:20:18,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247365463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:18,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:18,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122974170] [2022-07-22 12:20:18,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:18,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:18,172 INFO L87 Difference]: Start difference. First operand 1528 states and 1925 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:18,756 INFO L93 Difference]: Finished difference Result 3613 states and 4595 transitions. [2022-07-22 12:20:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-07-22 12:20:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:18,762 INFO L225 Difference]: With dead ends: 3613 [2022-07-22 12:20:18,762 INFO L226 Difference]: Without dead ends: 2087 [2022-07-22 12:20:18,764 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:18,764 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 149 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:18,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 387 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:20:18,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2022-07-22 12:20:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 1896. [2022-07-22 12:20:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1895 states have (on average 1.2480211081794195) internal successors, (2365), 1895 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2365 transitions. [2022-07-22 12:20:18,806 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2365 transitions. Word has length 230 [2022-07-22 12:20:18,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:18,807 INFO L495 AbstractCegarLoop]: Abstraction has 1896 states and 2365 transitions. [2022-07-22 12:20:18,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:18,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2365 transitions. [2022-07-22 12:20:18,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-22 12:20:18,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:18,810 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:18,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 12:20:18,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:18,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:18,811 INFO L85 PathProgramCache]: Analyzing trace with hash 302674822, now seen corresponding path program 1 times [2022-07-22 12:20:18,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:18,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887794165] [2022-07-22 12:20:18,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:18,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:18,874 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-22 12:20:18,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:18,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887794165] [2022-07-22 12:20:18,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887794165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:18,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:18,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:20:18,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029856309] [2022-07-22 12:20:18,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:18,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:18,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:18,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:18,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:18,877 INFO L87 Difference]: Start difference. First operand 1896 states and 2365 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:19,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:19,392 INFO L93 Difference]: Finished difference Result 4894 states and 6199 transitions. [2022-07-22 12:20:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:19,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-07-22 12:20:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:19,400 INFO L225 Difference]: With dead ends: 4894 [2022-07-22 12:20:19,400 INFO L226 Difference]: Without dead ends: 3000 [2022-07-22 12:20:19,403 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:19,404 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:19,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 155 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:19,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2022-07-22 12:20:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2816. [2022-07-22 12:20:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2815 states have (on average 1.205328596802842) internal successors, (3393), 2815 states have internal predecessors, (3393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3393 transitions. [2022-07-22 12:20:19,458 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3393 transitions. Word has length 241 [2022-07-22 12:20:19,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:19,459 INFO L495 AbstractCegarLoop]: Abstraction has 2816 states and 3393 transitions. [2022-07-22 12:20:19,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 2 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3393 transitions. [2022-07-22 12:20:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-22 12:20:19,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:19,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:19,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 12:20:19,462 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1319455466, now seen corresponding path program 1 times [2022-07-22 12:20:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:19,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604158596] [2022-07-22 12:20:19,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:19,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:19,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604158596] [2022-07-22 12:20:19,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604158596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:19,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:19,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:19,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022102825] [2022-07-22 12:20:19,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:19,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:19,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:19,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:19,549 INFO L87 Difference]: Start difference. First operand 2816 states and 3393 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:20,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:20,141 INFO L93 Difference]: Finished difference Result 6931 states and 8403 transitions. [2022-07-22 12:20:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:20,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2022-07-22 12:20:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:20,152 INFO L225 Difference]: With dead ends: 6931 [2022-07-22 12:20:20,153 INFO L226 Difference]: Without dead ends: 4117 [2022-07-22 12:20:20,156 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:20,157 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 123 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:20,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 156 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:20,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2022-07-22 12:20:20,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 4113. [2022-07-22 12:20:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4113 states, 4112 states have (on average 1.1943093385214008) internal successors, (4911), 4112 states have internal predecessors, (4911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 4911 transitions. [2022-07-22 12:20:20,223 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 4911 transitions. Word has length 257 [2022-07-22 12:20:20,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:20,223 INFO L495 AbstractCegarLoop]: Abstraction has 4113 states and 4911 transitions. [2022-07-22 12:20:20,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 4911 transitions. [2022-07-22 12:20:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-22 12:20:20,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:20,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:20,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 12:20:20,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:20,227 INFO L85 PathProgramCache]: Analyzing trace with hash 886178797, now seen corresponding path program 1 times [2022-07-22 12:20:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:20,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654500364] [2022-07-22 12:20:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654500364] [2022-07-22 12:20:20,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654500364] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:20,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:20,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:20,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258303415] [2022-07-22 12:20:20,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:20,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:20:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:20,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:20:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:20:20,355 INFO L87 Difference]: Start difference. First operand 4113 states and 4911 transitions. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:21,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:21,393 INFO L93 Difference]: Finished difference Result 12101 states and 14579 transitions. [2022-07-22 12:20:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:20:21,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2022-07-22 12:20:21,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:21,413 INFO L225 Difference]: With dead ends: 12101 [2022-07-22 12:20:21,414 INFO L226 Difference]: Without dead ends: 7990 [2022-07-22 12:20:21,419 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:21,420 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 230 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:21,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 140 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 12:20:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-07-22 12:20:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7985. [2022-07-22 12:20:21,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7985 states, 7984 states have (on average 1.18937875751503) internal successors, (9496), 7984 states have internal predecessors, (9496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:21,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 9496 transitions. [2022-07-22 12:20:21,533 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 9496 transitions. Word has length 263 [2022-07-22 12:20:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:21,534 INFO L495 AbstractCegarLoop]: Abstraction has 7985 states and 9496 transitions. [2022-07-22 12:20:21,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 9496 transitions. [2022-07-22 12:20:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-22 12:20:21,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:21,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:21,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 12:20:21,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:21,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:21,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1947751424, now seen corresponding path program 1 times [2022-07-22 12:20:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:21,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489752474] [2022-07-22 12:20:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 144 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:21,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489752474] [2022-07-22 12:20:21,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489752474] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:21,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530579451] [2022-07-22 12:20:21,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:21,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:21,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:21,751 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) [2022-07-22 12:20:21,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 12:20:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:21,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:20:21,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-22 12:20:22,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:22,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530579451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:22,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:22,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:20:22,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709293441] [2022-07-22 12:20:22,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:22,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:20:22,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:22,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:20:22,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-22 12:20:22,217 INFO L87 Difference]: Start difference. First operand 7985 states and 9496 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:23,111 INFO L93 Difference]: Finished difference Result 20956 states and 24756 transitions. [2022-07-22 12:20:23,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:20:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-07-22 12:20:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:23,139 INFO L225 Difference]: With dead ends: 20956 [2022-07-22 12:20:23,139 INFO L226 Difference]: Without dead ends: 13341 [2022-07-22 12:20:23,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-22 12:20:23,148 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 275 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:23,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 203 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 12:20:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13341 states. [2022-07-22 12:20:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13341 to 10753. [2022-07-22 12:20:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10753 states, 10752 states have (on average 1.177641369047619) internal successors, (12662), 10752 states have internal predecessors, (12662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:23,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10753 states to 10753 states and 12662 transitions. [2022-07-22 12:20:23,284 INFO L78 Accepts]: Start accepts. Automaton has 10753 states and 12662 transitions. Word has length 266 [2022-07-22 12:20:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:23,285 INFO L495 AbstractCegarLoop]: Abstraction has 10753 states and 12662 transitions. [2022-07-22 12:20:23,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 10753 states and 12662 transitions. [2022-07-22 12:20:23,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-22 12:20:23,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:23,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:23,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:23,504 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:23,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1546626242, now seen corresponding path program 1 times [2022-07-22 12:20:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:23,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701154819] [2022-07-22 12:20:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:23,616 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2022-07-22 12:20:23,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:23,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701154819] [2022-07-22 12:20:23,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701154819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:23,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:23,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:23,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127505114] [2022-07-22 12:20:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:23,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:23,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:23,619 INFO L87 Difference]: Start difference. First operand 10753 states and 12662 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) [2022-07-22 12:20:24,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:24,173 INFO L93 Difference]: Finished difference Result 21134 states and 24934 transitions. [2022-07-22 12:20:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:24,173 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 278 [2022-07-22 12:20:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:24,188 INFO L225 Difference]: With dead ends: 21134 [2022-07-22 12:20:24,188 INFO L226 Difference]: Without dead ends: 10751 [2022-07-22 12:20:24,197 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:24,198 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 187 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:24,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 304 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10751 states. [2022-07-22 12:20:24,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10751 to 10751. [2022-07-22 12:20:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10750 states have (on average 1.1469767441860466) internal successors, (12330), 10750 states have internal predecessors, (12330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:24,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 12330 transitions. [2022-07-22 12:20:24,331 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 12330 transitions. Word has length 278 [2022-07-22 12:20:24,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:24,331 INFO L495 AbstractCegarLoop]: Abstraction has 10751 states and 12330 transitions. [2022-07-22 12:20:24,332 INFO L496 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) [2022-07-22 12:20:24,332 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 12330 transitions. [2022-07-22 12:20:24,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-22 12:20:24,336 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:24,336 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:24,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 12:20:24,337 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:24,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:24,337 INFO L85 PathProgramCache]: Analyzing trace with hash 627435673, now seen corresponding path program 1 times [2022-07-22 12:20:24,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:24,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756928324] [2022-07-22 12:20:24,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:24,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 91 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:24,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:24,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756928324] [2022-07-22 12:20:24,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756928324] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:24,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436794799] [2022-07-22 12:20:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:24,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:24,441 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) [2022-07-22 12:20:24,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 12:20:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:24,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:20:24,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:24,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:24,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436794799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:24,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:24,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:20:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994302402] [2022-07-22 12:20:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:24,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:24,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:24,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:24,792 INFO L87 Difference]: Start difference. First operand 10751 states and 12330 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:25,363 INFO L93 Difference]: Finished difference Result 22626 states and 26090 transitions. [2022-07-22 12:20:25,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 281 [2022-07-22 12:20:25,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:25,381 INFO L225 Difference]: With dead ends: 22626 [2022-07-22 12:20:25,381 INFO L226 Difference]: Without dead ends: 12245 [2022-07-22 12:20:25,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:25,391 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 99 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:25,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 326 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12245 states. [2022-07-22 12:20:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12245 to 12234. [2022-07-22 12:20:25,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12234 states, 12233 states have (on average 1.147224720019619) internal successors, (14034), 12233 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12234 states to 12234 states and 14034 transitions. [2022-07-22 12:20:25,540 INFO L78 Accepts]: Start accepts. Automaton has 12234 states and 14034 transitions. Word has length 281 [2022-07-22 12:20:25,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:25,540 INFO L495 AbstractCegarLoop]: Abstraction has 12234 states and 14034 transitions. [2022-07-22 12:20:25,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:25,541 INFO L276 IsEmpty]: Start isEmpty. Operand 12234 states and 14034 transitions. [2022-07-22 12:20:25,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-22 12:20:25,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:25,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:25,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:25,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 12:20:25,750 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:25,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:25,751 INFO L85 PathProgramCache]: Analyzing trace with hash 510288335, now seen corresponding path program 1 times [2022-07-22 12:20:25,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:25,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841974702] [2022-07-22 12:20:25,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:25,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-22 12:20:25,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:25,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841974702] [2022-07-22 12:20:25,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841974702] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:25,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:25,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:25,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67942322] [2022-07-22 12:20:25,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:25,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:25,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:25,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:25,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:25,881 INFO L87 Difference]: Start difference. First operand 12234 states and 14034 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:26,552 INFO L93 Difference]: Finished difference Result 27225 states and 31313 transitions. [2022-07-22 12:20:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 310 [2022-07-22 12:20:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:26,573 INFO L225 Difference]: With dead ends: 27225 [2022-07-22 12:20:26,574 INFO L226 Difference]: Without dead ends: 15361 [2022-07-22 12:20:26,585 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:26,585 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 152 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:26,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 363 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:20:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15361 states. [2022-07-22 12:20:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15361 to 14257. [2022-07-22 12:20:26,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14257 states, 14256 states have (on average 1.137135241301908) internal successors, (16211), 14256 states have internal predecessors, (16211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14257 states to 14257 states and 16211 transitions. [2022-07-22 12:20:26,781 INFO L78 Accepts]: Start accepts. Automaton has 14257 states and 16211 transitions. Word has length 310 [2022-07-22 12:20:26,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:26,781 INFO L495 AbstractCegarLoop]: Abstraction has 14257 states and 16211 transitions. [2022-07-22 12:20:26,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:26,782 INFO L276 IsEmpty]: Start isEmpty. Operand 14257 states and 16211 transitions. [2022-07-22 12:20:26,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-07-22 12:20:26,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:26,789 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:26,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 12:20:26,789 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:26,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:26,790 INFO L85 PathProgramCache]: Analyzing trace with hash 2040805826, now seen corresponding path program 1 times [2022-07-22 12:20:26,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:26,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946755687] [2022-07-22 12:20:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:26,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:26,998 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 242 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:26,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:26,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946755687] [2022-07-22 12:20:26,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946755687] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:26,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92832141] [2022-07-22 12:20:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:26,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:26,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:27,000 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) [2022-07-22 12:20:27,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 12:20:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:27,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:20:27,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-07-22 12:20:27,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:27,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92832141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:27,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:27,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:20:27,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682493860] [2022-07-22 12:20:27,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:27,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:27,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:27,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:27,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:20:27,293 INFO L87 Difference]: Start difference. First operand 14257 states and 16211 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:27,830 INFO L93 Difference]: Finished difference Result 29625 states and 33706 transitions. [2022-07-22 12:20:27,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:27,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 [2022-07-22 12:20:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:27,848 INFO L225 Difference]: With dead ends: 29625 [2022-07-22 12:20:27,849 INFO L226 Difference]: Without dead ends: 15554 [2022-07-22 12:20:27,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:20:27,861 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 84 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:27,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 369 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:20:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15554 states. [2022-07-22 12:20:27,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15554 to 15183. [2022-07-22 12:20:27,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15183 states, 15182 states have (on average 1.1325253589777369) internal successors, (17194), 15182 states have internal predecessors, (17194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 17194 transitions. [2022-07-22 12:20:28,064 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 17194 transitions. Word has length 335 [2022-07-22 12:20:28,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:28,065 INFO L495 AbstractCegarLoop]: Abstraction has 15183 states and 17194 transitions. [2022-07-22 12:20:28,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:28,065 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 17194 transitions. [2022-07-22 12:20:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-07-22 12:20:28,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:28,072 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-22 12:20:28,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:28,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:28,292 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:28,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:28,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1448916129, now seen corresponding path program 1 times [2022-07-22 12:20:28,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:28,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456305705] [2022-07-22 12:20:28,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:28,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-07-22 12:20:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:28,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456305705] [2022-07-22 12:20:28,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456305705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:28,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:28,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:28,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422631355] [2022-07-22 12:20:28,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:28,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:28,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:28,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:28,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:28,426 INFO L87 Difference]: Start difference. First operand 15183 states and 17194 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:28,955 INFO L93 Difference]: Finished difference Result 17761 states and 20103 transitions. [2022-07-22 12:20:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2022-07-22 12:20:28,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:28,979 INFO L225 Difference]: With dead ends: 17761 [2022-07-22 12:20:28,980 INFO L226 Difference]: Without dead ends: 17759 [2022-07-22 12:20:28,985 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:28,986 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 171 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:28,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 150 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17759 states. [2022-07-22 12:20:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17759 to 16839. [2022-07-22 12:20:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16839 states, 16838 states have (on average 1.1343389951300629) internal successors, (19100), 16838 states have internal predecessors, (19100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16839 states to 16839 states and 19100 transitions. [2022-07-22 12:20:29,178 INFO L78 Accepts]: Start accepts. Automaton has 16839 states and 19100 transitions. Word has length 344 [2022-07-22 12:20:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:29,179 INFO L495 AbstractCegarLoop]: Abstraction has 16839 states and 19100 transitions. [2022-07-22 12:20:29,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 16839 states and 19100 transitions. [2022-07-22 12:20:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-07-22 12:20:29,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:29,186 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 12:20:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 12:20:29,186 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:29,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1133150815, now seen corresponding path program 1 times [2022-07-22 12:20:29,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:29,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618995184] [2022-07-22 12:20:29,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:29,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 252 proven. 51 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2022-07-22 12:20:29,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618995184] [2022-07-22 12:20:29,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618995184] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:29,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329353765] [2022-07-22 12:20:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:29,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:29,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:29,359 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) [2022-07-22 12:20:29,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 12:20:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:29,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:20:29,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:29,651 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-22 12:20:29,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:29,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329353765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:29,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:29,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:20:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115251248] [2022-07-22 12:20:29,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:29,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:29,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:29,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:29,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:29,654 INFO L87 Difference]: Start difference. First operand 16839 states and 19100 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:30,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:30,171 INFO L93 Difference]: Finished difference Result 33862 states and 38390 transitions. [2022-07-22 12:20:30,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:30,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 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 356 [2022-07-22 12:20:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:30,187 INFO L225 Difference]: With dead ends: 33862 [2022-07-22 12:20:30,187 INFO L226 Difference]: Without dead ends: 17025 [2022-07-22 12:20:30,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:30,199 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 91 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:30,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 169 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:20:30,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17025 states. [2022-07-22 12:20:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17025 to 15919. [2022-07-22 12:20:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15919 states, 15918 states have (on average 1.1276542279180801) internal successors, (17950), 15918 states have internal predecessors, (17950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15919 states to 15919 states and 17950 transitions. [2022-07-22 12:20:30,409 INFO L78 Accepts]: Start accepts. Automaton has 15919 states and 17950 transitions. Word has length 356 [2022-07-22 12:20:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:30,409 INFO L495 AbstractCegarLoop]: Abstraction has 15919 states and 17950 transitions. [2022-07-22 12:20:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 15919 states and 17950 transitions. [2022-07-22 12:20:30,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-07-22 12:20:30,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:30,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 12:20:30,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:30,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-22 12:20:30,635 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:30,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash -84443467, now seen corresponding path program 1 times [2022-07-22 12:20:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:30,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984065982] [2022-07-22 12:20:30,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:30,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 281 proven. 58 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-22 12:20:30,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:30,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984065982] [2022-07-22 12:20:30,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984065982] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:30,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602017830] [2022-07-22 12:20:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:30,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:30,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:30,848 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) [2022-07-22 12:20:30,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 12:20:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:30,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 12:20:30,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 202 proven. 137 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-22 12:20:31,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 12:20:31,769 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 293 proven. 46 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-22 12:20:31,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602017830] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 12:20:31,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 12:20:31,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2022-07-22 12:20:31,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145927598] [2022-07-22 12:20:31,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 12:20:31,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 12:20:31,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:31,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 12:20:31,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-22 12:20:31,772 INFO L87 Difference]: Start difference. First operand 15919 states and 17950 transitions. Second operand has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:36,811 INFO L93 Difference]: Finished difference Result 41783 states and 47212 transitions. [2022-07-22 12:20:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 12:20:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 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 373 [2022-07-22 12:20:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:36,841 INFO L225 Difference]: With dead ends: 41783 [2022-07-22 12:20:36,842 INFO L226 Difference]: Without dead ends: 25498 [2022-07-22 12:20:36,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 779 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=205, Invalid=445, Unknown=0, NotChecked=0, Total=650 [2022-07-22 12:20:36,856 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 2446 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 7548 mSolverCounterSat, 948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 8496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 948 IncrementalHoareTripleChecker+Valid, 7548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:36,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 222 Invalid, 8496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [948 Valid, 7548 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-22 12:20:36,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25498 states. [2022-07-22 12:20:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25498 to 17562. [2022-07-22 12:20:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17562 states, 17561 states have (on average 1.1097317920391778) internal successors, (19488), 17561 states have internal predecessors, (19488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17562 states to 17562 states and 19488 transitions. [2022-07-22 12:20:37,106 INFO L78 Accepts]: Start accepts. Automaton has 17562 states and 19488 transitions. Word has length 373 [2022-07-22 12:20:37,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:37,107 INFO L495 AbstractCegarLoop]: Abstraction has 17562 states and 19488 transitions. [2022-07-22 12:20:37,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.63636363636364) internal successors, (832), 11 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17562 states and 19488 transitions. [2022-07-22 12:20:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-07-22 12:20:37,117 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:37,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-22 12:20:37,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:37,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 12:20:37,335 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:37,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:37,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1802628130, now seen corresponding path program 1 times [2022-07-22 12:20:37,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:37,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380044640] [2022-07-22 12:20:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 137 proven. 229 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-07-22 12:20:37,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380044640] [2022-07-22 12:20:37,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380044640] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196591825] [2022-07-22 12:20:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:37,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:37,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:37,478 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) [2022-07-22 12:20:37,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 12:20:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:37,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 12:20:37,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:38,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 12:20:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 242 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:20:40,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196591825] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 12:20:40,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 12:20:40,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 11 [2022-07-22 12:20:40,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426592337] [2022-07-22 12:20:40,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 12:20:40,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 12:20:40,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:40,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 12:20:40,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-22 12:20:40,583 INFO L87 Difference]: Start difference. First operand 17562 states and 19488 transitions. Second operand has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:46,114 INFO L93 Difference]: Finished difference Result 50319 states and 55556 transitions. [2022-07-22 12:20:46,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-22 12:20:46,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 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 415 [2022-07-22 12:20:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:46,144 INFO L225 Difference]: With dead ends: 50319 [2022-07-22 12:20:46,144 INFO L226 Difference]: Without dead ends: 32943 [2022-07-22 12:20:46,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=395, Invalid=1011, Unknown=0, NotChecked=0, Total=1406 [2022-07-22 12:20:46,160 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 5061 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 7001 mSolverCounterSat, 1954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5061 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 8955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 7001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:46,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5061 Valid, 201 Invalid, 8955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1954 Valid, 7001 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-22 12:20:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32943 states. [2022-07-22 12:20:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32943 to 20320. [2022-07-22 12:20:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20320 states, 20319 states have (on average 1.0838131797824697) internal successors, (22022), 20319 states have internal predecessors, (22022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:46,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20320 states to 20320 states and 22022 transitions. [2022-07-22 12:20:46,438 INFO L78 Accepts]: Start accepts. Automaton has 20320 states and 22022 transitions. Word has length 415 [2022-07-22 12:20:46,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:46,439 INFO L495 AbstractCegarLoop]: Abstraction has 20320 states and 22022 transitions. [2022-07-22 12:20:46,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.5) internal successors, (966), 11 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:46,439 INFO L276 IsEmpty]: Start isEmpty. Operand 20320 states and 22022 transitions. [2022-07-22 12:20:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-22 12:20:46,456 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:46,457 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:46,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:46,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-22 12:20:46,658 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:46,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:46,658 INFO L85 PathProgramCache]: Analyzing trace with hash -580259533, now seen corresponding path program 1 times [2022-07-22 12:20:46,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:46,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258097674] [2022-07-22 12:20:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:46,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:46,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 229 proven. 516 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-07-22 12:20:46,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:46,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258097674] [2022-07-22 12:20:46,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258097674] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:46,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684444941] [2022-07-22 12:20:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:46,850 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) [2022-07-22 12:20:46,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 12:20:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:46,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 12:20:47,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-22 12:20:47,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:47,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684444941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:47,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:47,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:20:47,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317652471] [2022-07-22 12:20:47,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:47,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:20:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:47,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:20:47,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:20:47,293 INFO L87 Difference]: Start difference. First operand 20320 states and 22022 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:48,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:48,188 INFO L93 Difference]: Finished difference Result 41376 states and 44833 transitions. [2022-07-22 12:20:48,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:20:48,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 552 [2022-07-22 12:20:48,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:48,207 INFO L225 Difference]: With dead ends: 41376 [2022-07-22 12:20:48,207 INFO L226 Difference]: Without dead ends: 21242 [2022-07-22 12:20:48,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:20:48,220 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 204 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:48,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 109 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 12:20:48,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21242 states. [2022-07-22 12:20:48,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21242 to 21056. [2022-07-22 12:20:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21056 states, 21055 states have (on average 1.0819757777250059) internal successors, (22781), 21055 states have internal predecessors, (22781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21056 states to 21056 states and 22781 transitions. [2022-07-22 12:20:48,404 INFO L78 Accepts]: Start accepts. Automaton has 21056 states and 22781 transitions. Word has length 552 [2022-07-22 12:20:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:48,404 INFO L495 AbstractCegarLoop]: Abstraction has 21056 states and 22781 transitions. [2022-07-22 12:20:48,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 21056 states and 22781 transitions. [2022-07-22 12:20:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2022-07-22 12:20:48,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:48,421 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:48,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:48,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:48,622 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:48,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:48,623 INFO L85 PathProgramCache]: Analyzing trace with hash 762866496, now seen corresponding path program 1 times [2022-07-22 12:20:48,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:48,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16039234] [2022-07-22 12:20:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:48,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-22 12:20:48,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:48,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16039234] [2022-07-22 12:20:48,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16039234] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:48,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353508721] [2022-07-22 12:20:48,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:48,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:48,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:48,897 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:20:48,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 12:20:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:49,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 12:20:49,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 235 proven. 452 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-07-22 12:20:49,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 12:20:50,811 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 183 proven. 406 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-07-22 12:20:50,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353508721] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 12:20:50,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 12:20:50,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 4] total 9 [2022-07-22 12:20:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154164704] [2022-07-22 12:20:50,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 12:20:50,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 12:20:50,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:50,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 12:20:50,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2022-07-22 12:20:50,814 INFO L87 Difference]: Start difference. First operand 21056 states and 22781 transitions. Second operand has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:53,267 INFO L93 Difference]: Finished difference Result 64429 states and 69461 transitions. [2022-07-22 12:20:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 12:20:53,267 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 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 570 [2022-07-22 12:20:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:53,308 INFO L225 Difference]: With dead ends: 64429 [2022-07-22 12:20:53,309 INFO L226 Difference]: Without dead ends: 43743 [2022-07-22 12:20:53,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1142 GetRequests, 1134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=49, Unknown=0, NotChecked=0, Total=90 [2022-07-22 12:20:53,327 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1118 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 3705 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 4264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 3705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:53,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 153 Invalid, 4264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 3705 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-22 12:20:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43743 states. [2022-07-22 12:20:53,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43743 to 23648. [2022-07-22 12:20:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23648 states, 23647 states have (on average 1.0820822937370491) internal successors, (25588), 23647 states have internal predecessors, (25588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:53,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23648 states to 23648 states and 25588 transitions. [2022-07-22 12:20:53,643 INFO L78 Accepts]: Start accepts. Automaton has 23648 states and 25588 transitions. Word has length 570 [2022-07-22 12:20:53,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:53,644 INFO L495 AbstractCegarLoop]: Abstraction has 23648 states and 25588 transitions. [2022-07-22 12:20:53,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.0) internal successors, (800), 9 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:53,644 INFO L276 IsEmpty]: Start isEmpty. Operand 23648 states and 25588 transitions. [2022-07-22 12:20:53,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-07-22 12:20:53,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:53,656 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:53,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:53,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:53,862 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:53,863 INFO L85 PathProgramCache]: Analyzing trace with hash 745598085, now seen corresponding path program 1 times [2022-07-22 12:20:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:53,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037650968] [2022-07-22 12:20:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:53,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-07-22 12:20:54,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:54,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037650968] [2022-07-22 12:20:54,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037650968] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:54,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:54,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:54,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967137622] [2022-07-22 12:20:54,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:54,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:20:54,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:54,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:20:54,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:20:54,007 INFO L87 Difference]: Start difference. First operand 23648 states and 25588 transitions. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:54,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:54,948 INFO L93 Difference]: Finished difference Result 57811 states and 62455 transitions. [2022-07-22 12:20:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:20:54,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 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 584 [2022-07-22 12:20:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:54,980 INFO L225 Difference]: With dead ends: 57811 [2022-07-22 12:20:54,980 INFO L226 Difference]: Without dead ends: 33425 [2022-07-22 12:20:54,996 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:54,998 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 219 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:54,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 56 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 12:20:55,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33425 states. [2022-07-22 12:20:55,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33425 to 28434. [2022-07-22 12:20:55,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28434 states, 28433 states have (on average 1.0777265853058067) internal successors, (30643), 28433 states have internal predecessors, (30643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28434 states to 28434 states and 30643 transitions. [2022-07-22 12:20:55,302 INFO L78 Accepts]: Start accepts. Automaton has 28434 states and 30643 transitions. Word has length 584 [2022-07-22 12:20:55,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:55,302 INFO L495 AbstractCegarLoop]: Abstraction has 28434 states and 30643 transitions. [2022-07-22 12:20:55,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 28434 states and 30643 transitions. [2022-07-22 12:20:55,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-07-22 12:20:55,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:55,318 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:55,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 12:20:55,318 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:55,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:55,318 INFO L85 PathProgramCache]: Analyzing trace with hash 270747069, now seen corresponding path program 1 times [2022-07-22 12:20:55,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:55,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265143987] [2022-07-22 12:20:55,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:55,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 895 proven. 150 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-07-22 12:20:55,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:55,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265143987] [2022-07-22 12:20:55,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265143987] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:55,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278726814] [2022-07-22 12:20:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:55,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:55,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:20:55,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 12:20:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:55,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:20:55,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-07-22 12:20:55,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:55,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278726814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:55,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:55,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-07-22 12:20:55,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120152229] [2022-07-22 12:20:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:55,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:55,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:55,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:55,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:20:55,831 INFO L87 Difference]: Start difference. First operand 28434 states and 30643 transitions. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:56,430 INFO L93 Difference]: Finished difference Result 54661 states and 58965 transitions. [2022-07-22 12:20:56,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 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 610 [2022-07-22 12:20:56,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:56,455 INFO L225 Difference]: With dead ends: 54661 [2022-07-22 12:20:56,455 INFO L226 Difference]: Without dead ends: 28439 [2022-07-22 12:20:56,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:20:56,471 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:56,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 328 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:20:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28439 states. [2022-07-22 12:20:56,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28439 to 28434. [2022-07-22 12:20:56,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28434 states, 28433 states have (on average 1.074772271656174) internal successors, (30559), 28433 states have internal predecessors, (30559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28434 states to 28434 states and 30559 transitions. [2022-07-22 12:20:56,735 INFO L78 Accepts]: Start accepts. Automaton has 28434 states and 30559 transitions. Word has length 610 [2022-07-22 12:20:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:56,736 INFO L495 AbstractCegarLoop]: Abstraction has 28434 states and 30559 transitions. [2022-07-22 12:20:56,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 28434 states and 30559 transitions. [2022-07-22 12:20:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-07-22 12:20:56,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:56,751 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:56,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 12:20:56,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:56,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:56,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1983796039, now seen corresponding path program 1 times [2022-07-22 12:20:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:56,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013731959] [2022-07-22 12:20:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 844 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2022-07-22 12:20:57,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:57,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013731959] [2022-07-22 12:20:57,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013731959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:57,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:20:57,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:20:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994105177] [2022-07-22 12:20:57,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:57,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:57,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:57,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:57,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:20:57,099 INFO L87 Difference]: Start difference. First operand 28434 states and 30559 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:57,787 INFO L93 Difference]: Finished difference Result 58345 states and 62715 transitions. [2022-07-22 12:20:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 626 [2022-07-22 12:20:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:57,821 INFO L225 Difference]: With dead ends: 58345 [2022-07-22 12:20:57,821 INFO L226 Difference]: Without dead ends: 32123 [2022-07-22 12:20:57,838 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:20:57,838 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 106 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:57,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 66 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:20:57,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32123 states. [2022-07-22 12:20:58,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32123 to 27690. [2022-07-22 12:20:58,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27690 states, 27689 states have (on average 1.0722308497959478) internal successors, (29689), 27689 states have internal predecessors, (29689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27690 states to 27690 states and 29689 transitions. [2022-07-22 12:20:58,125 INFO L78 Accepts]: Start accepts. Automaton has 27690 states and 29689 transitions. Word has length 626 [2022-07-22 12:20:58,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:20:58,125 INFO L495 AbstractCegarLoop]: Abstraction has 27690 states and 29689 transitions. [2022-07-22 12:20:58,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:58,125 INFO L276 IsEmpty]: Start isEmpty. Operand 27690 states and 29689 transitions. [2022-07-22 12:20:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-07-22 12:20:58,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:20:58,141 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:20:58,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 12:20:58,141 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:20:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:20:58,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1939556016, now seen corresponding path program 1 times [2022-07-22 12:20:58,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:20:58,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9936944] [2022-07-22 12:20:58,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:58,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:20:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 1195 proven. 96 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2022-07-22 12:20:58,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:20:58,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9936944] [2022-07-22 12:20:58,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9936944] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:20:58,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686036432] [2022-07-22 12:20:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:20:58,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:20:58,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:20:58,338 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:20:58,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 12:20:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:20:58,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:20:58,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:20:58,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2123 backedges. 1465 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2022-07-22 12:20:58,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:20:58,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686036432] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:20:58,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:20:58,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-07-22 12:20:58,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604616631] [2022-07-22 12:20:58,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:20:58,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:20:58,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:20:58,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:20:58,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:58,631 INFO L87 Difference]: Start difference. First operand 27690 states and 29689 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:20:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:20:59,779 INFO L93 Difference]: Finished difference Result 60537 states and 64803 transitions. [2022-07-22 12:20:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:20:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 743 [2022-07-22 12:20:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:20:59,810 INFO L225 Difference]: With dead ends: 60537 [2022-07-22 12:20:59,810 INFO L226 Difference]: Without dead ends: 33217 [2022-07-22 12:20:59,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:20:59,828 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 73 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 12:20:59,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 330 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 12:20:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33217 states. [2022-07-22 12:21:00,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33217 to 26038. [2022-07-22 12:21:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26038 states, 26037 states have (on average 1.0715520221223642) internal successors, (27900), 26037 states have internal predecessors, (27900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26038 states to 26038 states and 27900 transitions. [2022-07-22 12:21:00,115 INFO L78 Accepts]: Start accepts. Automaton has 26038 states and 27900 transitions. Word has length 743 [2022-07-22 12:21:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:21:00,115 INFO L495 AbstractCegarLoop]: Abstraction has 26038 states and 27900 transitions. [2022-07-22 12:21:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 26038 states and 27900 transitions. [2022-07-22 12:21:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-07-22 12:21:00,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:21:00,131 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:21:00,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 12:21:00,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-22 12:21:00,332 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:21:00,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:21:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1592903774, now seen corresponding path program 1 times [2022-07-22 12:21:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:21:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503262219] [2022-07-22 12:21:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:21:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:00,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1273 proven. 64 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-07-22 12:21:00,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:21:00,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503262219] [2022-07-22 12:21:00,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503262219] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:21:00,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373680763] [2022-07-22 12:21:00,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:00,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:21:00,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:21:00,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:21:00,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 12:21:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:00,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:21:00,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:21:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1337 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-07-22 12:21:00,824 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:21:00,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373680763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:21:00,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:21:00,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:21:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427439418] [2022-07-22 12:21:00,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:21:00,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:21:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:21:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:21:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:21:00,825 INFO L87 Difference]: Start difference. First operand 26038 states and 27900 transitions. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:01,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:21:01,420 INFO L93 Difference]: Finished difference Result 51348 states and 55000 transitions. [2022-07-22 12:21:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:21:01,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 760 [2022-07-22 12:21:01,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:21:01,445 INFO L225 Difference]: With dead ends: 51348 [2022-07-22 12:21:01,445 INFO L226 Difference]: Without dead ends: 27152 [2022-07-22 12:21:01,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 763 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:21:01,459 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 77 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:21:01,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 342 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:21:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27152 states. [2022-07-22 12:21:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27152 to 24192. [2022-07-22 12:21:01,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24192 states, 24191 states have (on average 1.0707701211194245) internal successors, (25903), 24191 states have internal predecessors, (25903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24192 states to 24192 states and 25903 transitions. [2022-07-22 12:21:01,705 INFO L78 Accepts]: Start accepts. Automaton has 24192 states and 25903 transitions. Word has length 760 [2022-07-22 12:21:01,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:21:01,705 INFO L495 AbstractCegarLoop]: Abstraction has 24192 states and 25903 transitions. [2022-07-22 12:21:01,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:01,705 INFO L276 IsEmpty]: Start isEmpty. Operand 24192 states and 25903 transitions. [2022-07-22 12:21:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2022-07-22 12:21:01,719 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:21:01,719 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:21:01,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 12:21:01,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-22 12:21:01,920 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:21:01,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:21:01,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1793022811, now seen corresponding path program 1 times [2022-07-22 12:21:01,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:21:01,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863471721] [2022-07-22 12:21:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:01,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:21:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:02,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2134 backedges. 1427 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2022-07-22 12:21:02,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:21:02,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863471721] [2022-07-22 12:21:02,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863471721] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:21:02,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:21:02,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:21:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577378741] [2022-07-22 12:21:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:21:02,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:21:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:21:02,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:21:02,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:21:02,101 INFO L87 Difference]: Start difference. First operand 24192 states and 25903 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:02,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:21:02,779 INFO L93 Difference]: Finished difference Result 48757 states and 52137 transitions. [2022-07-22 12:21:02,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:21:02,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 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 785 [2022-07-22 12:21:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:21:02,811 INFO L225 Difference]: With dead ends: 48757 [2022-07-22 12:21:02,811 INFO L226 Difference]: Without dead ends: 26407 [2022-07-22 12:21:02,823 INFO L412 NwaCegarLoop]: 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 [2022-07-22 12:21:02,823 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:21:02,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 52 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:21:02,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26407 states. [2022-07-22 12:21:03,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26407 to 23088. [2022-07-22 12:21:03,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23088 states, 23087 states have (on average 1.0691731277342227) internal successors, (24684), 23087 states have internal predecessors, (24684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23088 states to 23088 states and 24684 transitions. [2022-07-22 12:21:03,044 INFO L78 Accepts]: Start accepts. Automaton has 23088 states and 24684 transitions. Word has length 785 [2022-07-22 12:21:03,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:21:03,044 INFO L495 AbstractCegarLoop]: Abstraction has 23088 states and 24684 transitions. [2022-07-22 12:21:03,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 23088 states and 24684 transitions. [2022-07-22 12:21:03,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2022-07-22 12:21:03,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:21:03,058 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-07-22 12:21:03,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 12:21:03,058 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:21:03,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:21:03,058 INFO L85 PathProgramCache]: Analyzing trace with hash 704676005, now seen corresponding path program 1 times [2022-07-22 12:21:03,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:21:03,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624989109] [2022-07-22 12:21:03,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:03,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:21:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 1325 proven. 750 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-22 12:21:03,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:21:03,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624989109] [2022-07-22 12:21:03,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624989109] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:21:03,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311050918] [2022-07-22 12:21:03,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:03,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:21:03,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:21:03,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:21:03,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 12:21:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:03,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:21:03,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:21:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 1526 proven. 0 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2022-07-22 12:21:03,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:21:03,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311050918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:21:03,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:21:03,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-07-22 12:21:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831134687] [2022-07-22 12:21:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:21:03,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:21:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:21:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:21:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-22 12:21:03,816 INFO L87 Difference]: Start difference. First operand 23088 states and 24684 transitions. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:04,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:21:04,362 INFO L93 Difference]: Finished difference Result 46015 states and 49195 transitions. [2022-07-22 12:21:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:21:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 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 807 [2022-07-22 12:21:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:21:04,383 INFO L225 Difference]: With dead ends: 46015 [2022-07-22 12:21:04,383 INFO L226 Difference]: Without dead ends: 24769 [2022-07-22 12:21:04,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 808 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-22 12:21:04,397 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 94 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:21:04,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 303 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:21:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24769 states. [2022-07-22 12:21:04,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24769 to 22536. [2022-07-22 12:21:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22536 states, 22535 states have (on average 1.0695806523186155) internal successors, (24103), 22535 states have internal predecessors, (24103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:04,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22536 states to 22536 states and 24103 transitions. [2022-07-22 12:21:04,608 INFO L78 Accepts]: Start accepts. Automaton has 22536 states and 24103 transitions. Word has length 807 [2022-07-22 12:21:04,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:21:04,608 INFO L495 AbstractCegarLoop]: Abstraction has 22536 states and 24103 transitions. [2022-07-22 12:21:04,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:04,608 INFO L276 IsEmpty]: Start isEmpty. Operand 22536 states and 24103 transitions. [2022-07-22 12:21:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2022-07-22 12:21:04,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:21:04,621 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:21:04,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 12:21:04,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-22 12:21:04,822 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:21:04,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:21:04,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1760541586, now seen corresponding path program 1 times [2022-07-22 12:21:04,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:21:04,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753051591] [2022-07-22 12:21:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:04,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:21:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2022-07-22 12:21:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:21:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753051591] [2022-07-22 12:21:05,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753051591] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:21:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442473547] [2022-07-22 12:21:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:21:05,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:21:05,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:21:05,034 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 12:21:05,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 12:21:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:21:05,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 12:21:05,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:21:05,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2022-07-22 12:21:05,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 12:21:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 1250 proven. 96 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2022-07-22 12:21:06,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442473547] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 12:21:06,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 12:21:06,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-07-22 12:21:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494940253] [2022-07-22 12:21:06,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 12:21:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 12:21:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:21:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 12:21:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:21:06,003 INFO L87 Difference]: Start difference. First operand 22536 states and 24103 transitions. Second operand has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:21:07,759 INFO L93 Difference]: Finished difference Result 50793 states and 54223 transitions. [2022-07-22 12:21:07,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 12:21:07,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 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 823 [2022-07-22 12:21:07,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:21:07,760 INFO L225 Difference]: With dead ends: 50793 [2022-07-22 12:21:07,760 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 12:21:07,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1649 GetRequests, 1640 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:21:07,774 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1231 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1845 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:21:07,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 81 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1845 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 12:21:07,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 12:21:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 12:21:07,775 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) [2022-07-22 12:21:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 12:21:07,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 823 [2022-07-22 12:21:07,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:21:07,775 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 12:21:07,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 77.77777777777777) internal successors, (700), 9 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:21:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 12:21:07,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 12:21:07,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 12:21:07,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 12:21:07,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-22 12:21:07,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 12:21:52,888 WARN L233 SmtUtils]: Spent 44.90s on a formula simplification. DAG size of input: 1137 DAG size of output: 1110 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-22 12:22:37,691 WARN L233 SmtUtils]: Spent 44.80s on a formula simplification. DAG size of input: 1137 DAG size of output: 1110 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-07-22 12:22:45,689 WARN L233 SmtUtils]: Spent 7.99s on a formula simplification. DAG size of input: 1104 DAG size of output: 175 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-07-22 12:22:53,583 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 1104 DAG size of output: 175 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,587 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,588 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2022-07-22 12:22:53,589 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,590 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L895 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse31 (+ ~a23~0 43)) (.cse16 (<= ~a25~0 10)) (.cse9 (<= ~a29~0 130)) (.cse19 (= ~a25~0 11)) (.cse1 (= ~a25~0 12)) (.cse20 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse17 (= ~a4~0 1)) (.cse5 (= ~a8~0 15))) (let ((.cse10 (or (and .cse19 .cse3 .cse17 .cse5) (and .cse1 .cse20 (or (not (< 306 ~a23~0)) (not (< 277 ~a29~0))) .cse3 .cse17 .cse5))) (.cse12 (<= 130 ~a29~0)) (.cse28 (not (<= ~a23~0 138))) (.cse13 (<= 260 ~a29~0)) (.cse26 (<= 0 (+ ~a23~0 577842))) (.cse11 (<= (+ 119992 ~a23~0) 0)) (.cse23 (<= 0 (+ ~a23~0 437803))) (.cse6 (<= 247 ~a29~0)) (.cse27 (= ~a25~0 13)) (.cse21 (or (and .cse16 .cse9) (and .cse1 .cse9))) (.cse8 (<= ~a25~0 9)) (.cse0 (<= .cse31 0)) (.cse4 (not .cse17)) (.cse7 (<= 0 (+ (div (+ (- 600221) ~a23~0) 5) 370992))) (.cse25 (< 140 ~a29~0)) (.cse2 (<= ~a29~0 274)) (.cse14 (<= ~a4~0 0)) (.cse24 (<= ~a29~0 220)) (.cse22 (<= ~a23~0 312)) (.cse15 (<= 0 (+ ~a23~0 42))) (.cse30 (< 138 ~a23~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse3 .cse8 .cse5 .cse9) (and .cse10 .cse11 .cse12) (and .cse13 (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse14) (and .cse10 .cse6 .cse15 .cse12) (and .cse16 .cse3 .cse17 .cse5) (and .cse7 (<= 10 ~a25~0) .cse16 .cse3 .cse5 .cse14 .cse9) (and .cse2 (let ((.cse18 (<= 312 ~a23~0))) (or (and .cse1 .cse3 .cse17 .cse18 .cse5) (and .cse19 .cse3 .cse17 .cse18 .cse5))) .cse12) (and .cse20 .cse3 .cse21 .cse17 .cse22 .cse5) (and .cse0 (<= 10250 ~a29~0) .cse3 .cse8 .cse5) (and .cse23 .cse19 .cse3 .cse24 .cse11 .cse5 .cse12) (and .cse0 .cse1 (or (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse25) .cse26 .cse3 .cse4 .cse5) (and .cse27 .cse0 .cse3 .cse17 .cse5 .cse12) (and .cse27 .cse28 .cse2 .cse3 .cse22 .cse5 .cse12) (and .cse27 .cse28 (<= ~a23~0 262) .cse3 .cse5) (and .cse13 .cse26 .cse19 .cse3 .cse11 .cse5) (and .cse23 .cse19 .cse2 .cse3 .cse4 .cse22 .cse5 .cse6) (and .cse0 .cse1 .cse25 (<= 0 (+ ~a23~0 599908)) .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse3 .cse17 .cse5 (< 437899 ~a23~0) .cse9) (and .cse27 (<= 306 ~a23~0) .cse3 .cse17 .cse5) (and .cse27 .cse3 .cse4 .cse22 .cse5 .cse15) (and .cse21 .cse17 .cse8) (let ((.cse29 (div ~a23~0 5))) (and .cse0 (< 0 (+ .cse29 553331)) .cse19 .cse3 .cse4 .cse5 (or (not (= (mod ~a23~0 5) 0)) (< 0 (+ .cse29 553330))) .cse9)) (and .cse0 .cse16 .cse17) (and .cse1 .cse3 .cse4 .cse22 .cse5 .cse15) (and .cse22 (or (and .cse30 .cse19 .cse3 .cse17 .cse5) (and .cse1 .cse30 (<= ~a29~0 277) .cse3 .cse5))) (and .cse7 (or .cse25 (< 0 .cse31)) .cse1 .cse2 .cse3 .cse5 .cse14) (and .cse16 .cse3 .cse24 .cse22 .cse5 .cse15 (or .cse30 (<= ~a29~0 140)))))) [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,591 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L902 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,592 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-07-22 12:22:53,593 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2022-07-22 12:22:53,594 INFO L899 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse31 (+ ~a23~0 43)) (.cse16 (<= ~a25~0 10)) (.cse9 (<= ~a29~0 130)) (.cse19 (= ~a25~0 11)) (.cse1 (= ~a25~0 12)) (.cse20 (<= 0 (+ ~a23~0 599772))) (.cse3 (= ~a3~0 1)) (.cse17 (= ~a4~0 1)) (.cse5 (= ~a8~0 15))) (let ((.cse10 (or (and .cse19 .cse3 .cse17 .cse5) (and .cse1 .cse20 (or (not (< 306 ~a23~0)) (not (< 277 ~a29~0))) .cse3 .cse17 .cse5))) (.cse12 (<= 130 ~a29~0)) (.cse28 (not (<= ~a23~0 138))) (.cse13 (<= 260 ~a29~0)) (.cse26 (<= 0 (+ ~a23~0 577842))) (.cse11 (<= (+ 119992 ~a23~0) 0)) (.cse23 (<= 0 (+ ~a23~0 437803))) (.cse6 (<= 247 ~a29~0)) (.cse27 (= ~a25~0 13)) (.cse21 (or (and .cse16 .cse9) (and .cse1 .cse9))) (.cse8 (<= ~a25~0 9)) (.cse0 (<= .cse31 0)) (.cse4 (not .cse17)) (.cse7 (<= 0 (+ (div (+ (- 600221) ~a23~0) 5) 370992))) (.cse25 (< 140 ~a29~0)) (.cse2 (<= ~a29~0 274)) (.cse14 (<= ~a4~0 0)) (.cse24 (<= ~a29~0 220)) (.cse22 (<= ~a23~0 312)) (.cse15 (<= 0 (+ ~a23~0 42))) (.cse30 (< 138 ~a23~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse3 .cse8 .cse5 .cse9) (and .cse10 .cse11 .cse12) (and .cse13 (<= ~a29~0 275) .cse1 .cse3 .cse5 .cse14) (and .cse10 .cse6 .cse15 .cse12) (and .cse16 .cse3 .cse17 .cse5) (and .cse7 (<= 10 ~a25~0) .cse16 .cse3 .cse5 .cse14 .cse9) (and .cse2 (let ((.cse18 (<= 312 ~a23~0))) (or (and .cse1 .cse3 .cse17 .cse18 .cse5) (and .cse19 .cse3 .cse17 .cse18 .cse5))) .cse12) (and .cse20 .cse3 .cse21 .cse17 .cse22 .cse5) (and .cse0 (<= 10250 ~a29~0) .cse3 .cse8 .cse5) (and .cse23 .cse19 .cse3 .cse24 .cse11 .cse5 .cse12) (and .cse0 .cse1 (or (not (= |ULTIMATE.start_calculate_output_~input#1| 3)) .cse25) .cse26 .cse3 .cse4 .cse5) (and .cse27 .cse0 .cse3 .cse17 .cse5 .cse12) (and .cse27 .cse28 .cse2 .cse3 .cse22 .cse5 .cse12) (and .cse27 .cse28 (<= ~a23~0 262) .cse3 .cse5) (and .cse13 .cse26 .cse19 .cse3 .cse11 .cse5) (and .cse23 .cse19 .cse2 .cse3 .cse4 .cse22 .cse5 .cse6) (and .cse0 .cse1 .cse25 (<= 0 (+ ~a23~0 599908)) .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse3 .cse17 .cse5 (< 437899 ~a23~0) .cse9) (and .cse27 (<= 306 ~a23~0) .cse3 .cse17 .cse5) (and .cse27 .cse3 .cse4 .cse22 .cse5 .cse15) (and .cse21 .cse17 .cse8) (let ((.cse29 (div ~a23~0 5))) (and .cse0 (< 0 (+ .cse29 553331)) .cse19 .cse3 .cse4 .cse5 (or (not (= (mod ~a23~0 5) 0)) (< 0 (+ .cse29 553330))) .cse9)) (and .cse0 .cse16 .cse17) (and .cse1 .cse3 .cse4 .cse22 .cse5 .cse15) (and .cse22 (or (and .cse30 .cse19 .cse3 .cse17 .cse5) (and .cse1 .cse30 (<= ~a29~0 277) .cse3 .cse5))) (and .cse7 (or .cse25 (< 0 .cse31)) .cse1 .cse2 .cse3 .cse5 .cse14) (and .cse16 .cse3 .cse24 .cse22 .cse5 .cse15 (or .cse30 (<= ~a29~0 140)))))) [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,595 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2022-07-22 12:22:53,596 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,597 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2022-07-22 12:22:53,598 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2022-07-22 12:22:53,599 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,600 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2022-07-22 12:22:53,601 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,602 INFO L899 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,603 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2022-07-22 12:22:53,604 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2022-07-22 12:22:53,605 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2022-07-22 12:22:53,606 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,607 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,608 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,609 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2022-07-22 12:22:53,610 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,611 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,612 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,613 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,613 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,613 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,613 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2022-07-22 12:22:53,613 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,614 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,615 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,615 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,615 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 12:22:53,616 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,617 INFO L899 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-07-22 12:22:53,618 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-07-22 12:22:53,619 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2022-07-22 12:22:53,621 INFO L356 BasicCegarLoop]: Path program 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] [2022-07-22 12:22:53,623 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 12:22:53,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:22:53 BoogieIcfgContainer [2022-07-22 12:22:53,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 12:22:53,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 12:22:53,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 12:22:53,659 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 12:22:53,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:20:14" (3/4) ... [2022-07-22 12:22:53,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 12:22:53,679 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 12:22:53,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 12:22:53,680 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 12:22:53,681 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 12:22:53,751 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 12:22:53,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 12:22:53,751 INFO L158 Benchmark]: Toolchain (without parser) took 160968.09ms. Allocated memory was 102.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 67.7MB in the beginning and 606.2MB in the end (delta: -538.5MB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2022-07-22 12:22:53,751 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.85ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 67.4MB in the beginning and 108.9MB in the end (delta: -41.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.97ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 91.4MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: Boogie Preprocessor took 88.26ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 82.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: RCFGBuilder took 1169.90ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 82.1MB in the beginning and 146.2MB in the end (delta: -64.0MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: TraceAbstraction took 158907.84ms. Allocated memory was 197.1MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 145.1MB in the beginning and 621.6MB in the end (delta: -476.5MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-07-22 12:22:53,752 INFO L158 Benchmark]: Witness Printer took 91.94ms. Allocated memory is still 2.1GB. Free memory was 621.6MB in the beginning and 606.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 12:22:53,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.85ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 67.4MB in the beginning and 108.9MB in the end (delta: -41.5MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.97ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 91.4MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.26ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 82.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1169.90ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 82.1MB in the beginning and 146.2MB in the end (delta: -64.0MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 158907.84ms. Allocated memory was 197.1MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 145.1MB in the beginning and 621.6MB in the end (delta: -476.5MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 91.94ms. Allocated memory is still 2.1GB. Free memory was 621.6MB in the beginning and 606.2MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. 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: 160]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 158.8s, OverallIterations: 27, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 31.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 105.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13118 SdHoareTripleChecker+Valid, 26.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13118 mSDsluCounter, 5809 SdHoareTripleChecker+Invalid, 21.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1040 mSDsCounter, 5889 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34469 IncrementalHoareTripleChecker+Invalid, 40358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5889 mSolverCounterUnsat, 4769 mSDtfsCounter, 34469 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9216 GetRequests, 9078 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28434occurred in iteration=20, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 72653 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 359 NumberOfFragments, 1525 HoareAnnotationTreeSize, 3 FomulaSimplifications, 279190 FormulaSimplificationTreeSizeReduction, 89.7s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1528380 FormulaSimplificationTreeSizeReductionInter, 15.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 18142 NumberOfCodeBlocks, 18142 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 20279 ConstructedInterpolants, 0 QuantifiedInterpolants, 88799 SizeOfPredicates, 11 NumberOfNonLiveVariables, 9331 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 44 InterpolantComputations, 23 PerfectInterpolantSequences, 33686/38089 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a23 + 43 <= 0 && a25 == 12) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a8 == 15) && 247 <= a29) || (((((0 <= (-600221 + a23) / 5 + 370992 && a23 + 43 <= 0) && a3 == 1) && a25 <= 9) && a8 == 15) && a29 <= 130)) || ((((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 0 <= a23 + 599772) && (!(306 < a23) || !(277 < a29))) && a3 == 1) && a4 == 1) && a8 == 15)) && 119992 + a23 <= 0) && 130 <= a29)) || (((((260 <= a29 && a29 <= 275) && a25 == 12) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 0 <= a23 + 599772) && (!(306 < a23) || !(277 < a29))) && a3 == 1) && a4 == 1) && a8 == 15)) && 247 <= a29) && 0 <= a23 + 42) && 130 <= a29)) || (((a25 <= 10 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 <= (-600221 + a23) / 5 + 370992 && 10 <= a25) && a25 <= 10) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || ((a29 <= 274 && (((((a25 == 12 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) || ((((a25 == 11 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15))) && 130 <= a29)) || (((((0 <= a23 + 599772 && a3 == 1) && ((a25 <= 10 && a29 <= 130) || (a25 == 12 && a29 <= 130))) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 437803 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15) && 130 <= a29)) || ((((((a23 + 43 <= 0 && a25 == 12) && (!(input == 3) || 140 < a29)) && 0 <= a23 + 577842) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((a25 == 13 && a23 + 43 <= 0) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((a25 == 13 && !(a23 <= 138)) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15) && 130 <= a29)) || ((((a25 == 13 && !(a23 <= 138)) && a23 <= 262) && a3 == 1) && a8 == 15)) || (((((260 <= a29 && 0 <= a23 + 577842) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || (((((((0 <= a23 + 437803 && a25 == 11) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 247 <= a29)) || (((((((a23 + 43 <= 0 && a25 == 12) && 140 < a29) && 0 <= a23 + 599908) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 437899 < a23) && a29 <= 130)) || ((((a25 == 13 && 306 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42)) || ((((a25 <= 10 && a29 <= 130) || (a25 == 12 && a29 <= 130)) && a4 == 1) && a25 <= 9)) || (((((((a23 + 43 <= 0 && 0 < a23 / 5 + 553331) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15) && (!(a23 % 5 == 0) || 0 < a23 / 5 + 553330)) && a29 <= 130)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || (((((a25 == 12 && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42)) || (a23 <= 312 && (((((138 < a23 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) || ((((a25 == 12 && 138 < a23) && a29 <= 277) && a3 == 1) && a8 == 15)))) || ((((((0 <= (-600221 + a23) / 5 + 370992 && (140 < a29 || 0 < a23 + 43)) && a25 == 12) && a29 <= 274) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((((a25 <= 10 && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42) && (138 < a23 || a29 <= 140)) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a23 + 43 <= 0 && a25 == 12) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a8 == 15) && 247 <= a29) || (((((0 <= (-600221 + a23) / 5 + 370992 && a23 + 43 <= 0) && a3 == 1) && a25 <= 9) && a8 == 15) && a29 <= 130)) || ((((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 0 <= a23 + 599772) && (!(306 < a23) || !(277 < a29))) && a3 == 1) && a4 == 1) && a8 == 15)) && 119992 + a23 <= 0) && 130 <= a29)) || (((((260 <= a29 && a29 <= 275) && a25 == 12) && a3 == 1) && a8 == 15) && a4 <= 0)) || (((((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) || (((((a25 == 12 && 0 <= a23 + 599772) && (!(306 < a23) || !(277 < a29))) && a3 == 1) && a4 == 1) && a8 == 15)) && 247 <= a29) && 0 <= a23 + 42) && 130 <= a29)) || (((a25 <= 10 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((0 <= (-600221 + a23) / 5 + 370992 && 10 <= a25) && a25 <= 10) && a3 == 1) && a8 == 15) && a4 <= 0) && a29 <= 130)) || ((a29 <= 274 && (((((a25 == 12 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15) || ((((a25 == 11 && a3 == 1) && a4 == 1) && 312 <= a23) && a8 == 15))) && 130 <= a29)) || (((((0 <= a23 + 599772 && a3 == 1) && ((a25 <= 10 && a29 <= 130) || (a25 == 12 && a29 <= 130))) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((a23 + 43 <= 0 && 10250 <= a29) && a3 == 1) && a25 <= 9) && a8 == 15)) || ((((((0 <= a23 + 437803 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15) && 130 <= a29)) || ((((((a23 + 43 <= 0 && a25 == 12) && (!(input == 3) || 140 < a29)) && 0 <= a23 + 577842) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((a25 == 13 && a23 + 43 <= 0) && a3 == 1) && a4 == 1) && a8 == 15) && 130 <= a29)) || ((((((a25 == 13 && !(a23 <= 138)) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15) && 130 <= a29)) || ((((a25 == 13 && !(a23 <= 138)) && a23 <= 262) && a3 == 1) && a8 == 15)) || (((((260 <= a29 && 0 <= a23 + 577842) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || (((((((0 <= a23 + 437803 && a25 == 11) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 247 <= a29)) || (((((((a23 + 43 <= 0 && a25 == 12) && 140 < a29) && 0 <= a23 + 599908) && a29 <= 274) && a3 == 1) && !(a4 == 1)) && a8 == 15)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 437899 < a23) && a29 <= 130)) || ((((a25 == 13 && 306 <= a23) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 == 13 && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42)) || ((((a25 <= 10 && a29 <= 130) || (a25 == 12 && a29 <= 130)) && a4 == 1) && a25 <= 9)) || (((((((a23 + 43 <= 0 && 0 < a23 / 5 + 553331) && a25 == 11) && a3 == 1) && !(a4 == 1)) && a8 == 15) && (!(a23 % 5 == 0) || 0 < a23 / 5 + 553330)) && a29 <= 130)) || ((a23 + 43 <= 0 && a25 <= 10) && a4 == 1)) || (((((a25 == 12 && a3 == 1) && !(a4 == 1)) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42)) || (a23 <= 312 && (((((138 < a23 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) || ((((a25 == 12 && 138 < a23) && a29 <= 277) && a3 == 1) && a8 == 15)))) || ((((((0 <= (-600221 + a23) / 5 + 370992 && (140 < a29 || 0 < a23 + 43)) && a25 == 12) && a29 <= 274) && a3 == 1) && a8 == 15) && a4 <= 0)) || ((((((a25 <= 10 && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) && 0 <= a23 + 42) && (138 < a23 || a29 <= 140)) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 12:22:53,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE