./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/Problem01_label31.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 e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-11 23:57:58,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-11 23:57:58,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-11 23:57:58,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-11 23:57:58,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-11 23:57:58,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-11 23:57:58,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-11 23:57:58,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-11 23:57:58,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-11 23:57:58,504 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-11 23:57:58,505 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-11 23:57:58,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-11 23:57:58,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-11 23:57:58,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-11 23:57:58,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-11 23:57:58,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-11 23:57:58,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-11 23:57:58,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-11 23:57:58,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-11 23:57:58,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-11 23:57:58,524 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-11 23:57:58,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-11 23:57:58,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-11 23:57:58,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-11 23:57:58,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-11 23:57:58,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-11 23:57:58,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-11 23:57:58,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-11 23:57:58,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-11 23:57:58,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-11 23:57:58,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-11 23:57:58,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-11 23:57:58,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-11 23:57:58,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-11 23:57:58,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-11 23:57:58,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-11 23:57:58,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-11 23:57:58,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-11 23:57:58,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-11 23:57:58,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-11 23:57:58,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-11 23:57:58,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-11 23:57:58,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-11 23:57:58,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-11 23:57:58,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-11 23:57:58,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-11 23:57:58,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-11 23:57:58,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-11 23:57:58,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-11 23:57:58,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-11 23:57:58,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-11 23:57:58,570 INFO L138 SettingsManager]: * Use SBE=true [2022-07-11 23:57:58,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-11 23:57:58,571 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-11 23:57:58,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-11 23:57:58,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-11 23:57:58,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-11 23:57:58,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-11 23:57:58,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-11 23:57:58,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-11 23:57:58,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-11 23:57:58,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-11 23:57:58,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 23:57:58,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-11 23:57:58,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-11 23:57:58,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-11 23:57:58,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-11 23:57:58,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-11 23:57:58,576 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-11 23:57:58,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-11 23:57:58,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-11 23:57:58,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4dd87ffa8279e5be73819f1eecf23f4704317559faef100e8eb60d719eb066b [2022-07-11 23:57:58,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-11 23:57:58,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-11 23:57:58,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-11 23:57:58,782 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-11 23:57:58,782 INFO L275 PluginConnector]: CDTParser initialized [2022-07-11 23:57:58,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2022-07-11 23:57:58,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20a991a4/d2a445dee93b4b729688dc3279e360ec/FLAGe6ec45a2a [2022-07-11 23:57:59,397 INFO L306 CDTParser]: Found 1 translation units. [2022-07-11 23:57:59,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2022-07-11 23:57:59,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20a991a4/d2a445dee93b4b729688dc3279e360ec/FLAGe6ec45a2a [2022-07-11 23:57:59,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f20a991a4/d2a445dee93b4b729688dc3279e360ec [2022-07-11 23:57:59,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-11 23:57:59,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-11 23:57:59,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-11 23:57:59,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-11 23:57:59,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-11 23:57:59,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 11:57:59" (1/1) ... [2022-07-11 23:57:59,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d185c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:57:59, skipping insertion in model container [2022-07-11 23:57:59,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 11:57:59" (1/1) ... [2022-07-11 23:57:59,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-11 23:57:59,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-11 23:58:00,036 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/Problem01_label31.c[16993,17006] [2022-07-11 23:58:00,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 23:58:00,074 INFO L203 MainTranslator]: Completed pre-run [2022-07-11 23:58:00,145 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/Problem01_label31.c[16993,17006] [2022-07-11 23:58:00,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 23:58:00,195 INFO L208 MainTranslator]: Completed translation [2022-07-11 23:58:00,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00 WrapperNode [2022-07-11 23:58:00,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-11 23:58:00,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-11 23:58:00,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-11 23:58:00,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-11 23:58:00,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,282 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-07-11 23:58:00,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-11 23:58:00,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-11 23:58:00,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-11 23:58:00,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-11 23:58:00,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-11 23:58:00,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-11 23:58:00,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-11 23:58:00,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-11 23:58:00,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (1/1) ... [2022-07-11 23:58:00,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 23:58:00,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:00,381 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) [2022-07-11 23:58:00,406 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 [2022-07-11 23:58:00,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-11 23:58:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-11 23:58:00,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-11 23:58:00,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-11 23:58:00,516 INFO L234 CfgBuilder]: Building ICFG [2022-07-11 23:58:00,517 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-11 23:58:01,298 INFO L275 CfgBuilder]: Performing block encoding [2022-07-11 23:58:01,312 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-11 23:58:01,312 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-11 23:58:01,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:58:01 BoogieIcfgContainer [2022-07-11 23:58:01,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-11 23:58:01,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-11 23:58:01,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-11 23:58:01,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-11 23:58:01,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 11:57:59" (1/3) ... [2022-07-11 23:58:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309e4e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 11:58:01, skipping insertion in model container [2022-07-11 23:58:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 11:58:00" (2/3) ... [2022-07-11 23:58:01,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309e4e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 11:58:01, skipping insertion in model container [2022-07-11 23:58:01,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:58:01" (3/3) ... [2022-07-11 23:58:01,326 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2022-07-11 23:58:01,337 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-11 23:58:01,337 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-11 23:58:01,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-11 23:58:01,418 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@359c3734, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@32314604 [2022-07-11 23:58:01,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-11 23:58:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 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) [2022-07-11 23:58:01,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-11 23:58:01,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:01,448 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:01,449 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:01,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:01,456 INFO L85 PathProgramCache]: Analyzing trace with hash 779606815, now seen corresponding path program 1 times [2022-07-11 23:58:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:01,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362206633] [2022-07-11 23:58:01,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:01,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:01,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362206633] [2022-07-11 23:58:01,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362206633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:01,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:01,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 23:58:01,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080317768] [2022-07-11 23:58:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:01,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:01,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:01,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 23:58:01,828 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 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) Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:02,571 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-07-11 23:58:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-11 23:58:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:02,584 INFO L225 Difference]: With dead ends: 528 [2022-07-11 23:58:02,585 INFO L226 Difference]: Without dead ends: 266 [2022-07-11 23:58:02,588 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 [2022-07-11 23:58:02,592 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 103 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:02,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-11 23:58:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-11 23:58:02,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-07-11 23:58:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2022-07-11 23:58:02,640 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 92 [2022-07-11 23:58:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:02,641 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2022-07-11 23:58:02,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2022-07-11 23:58:02,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-11 23:58:02,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:02,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:02,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-11 23:58:02,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:02,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:02,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1838806263, now seen corresponding path program 1 times [2022-07-11 23:58:02,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:02,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899296484] [2022-07-11 23:58:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:02,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:02,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:02,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:02,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899296484] [2022-07-11 23:58:02,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899296484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:02,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:02,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 23:58:02,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253830019] [2022-07-11 23:58:02,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:02,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:02,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:02,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:02,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 23:58:02,701 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:03,121 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2022-07-11 23:58:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-07-11 23:58:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:03,125 INFO L225 Difference]: With dead ends: 792 [2022-07-11 23:58:03,126 INFO L226 Difference]: Without dead ends: 528 [2022-07-11 23:58:03,129 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 [2022-07-11 23:58:03,132 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:03,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-11 23:58:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-11 23:58:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-07-11 23:58:03,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2022-07-11 23:58:03,189 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 97 [2022-07-11 23:58:03,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:03,191 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2022-07-11 23:58:03,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,192 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2022-07-11 23:58:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-11 23:58:03,201 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:03,202 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:03,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-11 23:58:03,203 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:03,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:03,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1448509982, now seen corresponding path program 1 times [2022-07-11 23:58:03,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:03,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629165210] [2022-07-11 23:58:03,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:03,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:03,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:03,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629165210] [2022-07-11 23:58:03,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629165210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:03,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:03,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 23:58:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186870876] [2022-07-11 23:58:03,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:03,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:03,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:03,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:03,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 23:58:03,321 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:03,681 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2022-07-11 23:58:03,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:03,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-07-11 23:58:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:03,685 INFO L225 Difference]: With dead ends: 1447 [2022-07-11 23:58:03,685 INFO L226 Difference]: Without dead ends: 921 [2022-07-11 23:58:03,685 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 [2022-07-11 23:58:03,686 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 122 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:03,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 56 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-11 23:58:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2022-07-11 23:58:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.3219264892268694) internal successors, (1043), 789 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2022-07-11 23:58:03,706 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 107 [2022-07-11 23:58:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:03,707 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2022-07-11 23:58:03,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2022-07-11 23:58:03,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-11 23:58:03,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:03,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:03,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-11 23:58:03,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:03,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:03,710 INFO L85 PathProgramCache]: Analyzing trace with hash -172560370, now seen corresponding path program 1 times [2022-07-11 23:58:03,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:03,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904089427] [2022-07-11 23:58:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:03,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-11 23:58:03,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:03,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904089427] [2022-07-11 23:58:03,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904089427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:03,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:03,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 23:58:03,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123490234] [2022-07-11 23:58:03,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:03,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:03,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:03,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:03,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 23:58:03,754 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:04,105 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2022-07-11 23:58:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:04,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 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 108 [2022-07-11 23:58:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:04,110 INFO L225 Difference]: With dead ends: 1840 [2022-07-11 23:58:04,110 INFO L226 Difference]: Without dead ends: 1052 [2022-07-11 23:58:04,111 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 [2022-07-11 23:58:04,112 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:04,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 60 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2022-07-11 23:58:04,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1052. [2022-07-11 23:58:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1051 states have (on average 1.2768791627021885) internal successors, (1342), 1051 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1342 transitions. [2022-07-11 23:58:04,134 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1342 transitions. Word has length 108 [2022-07-11 23:58:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:04,135 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1342 transitions. [2022-07-11 23:58:04,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1342 transitions. [2022-07-11 23:58:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-11 23:58:04,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:04,137 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:04,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-11 23:58:04,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:04,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:04,138 INFO L85 PathProgramCache]: Analyzing trace with hash 957692134, now seen corresponding path program 1 times [2022-07-11 23:58:04,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:04,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755062435] [2022-07-11 23:58:04,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:04,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:04,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:04,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:04,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755062435] [2022-07-11 23:58:04,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755062435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:04,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:04,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-11 23:58:04,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267570711] [2022-07-11 23:58:04,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:04,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-11 23:58:04,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-11 23:58:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-11 23:58:04,195 INFO L87 Difference]: Start difference. First operand 1052 states and 1342 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:04,746 INFO L93 Difference]: Finished difference Result 2626 states and 3314 transitions. [2022-07-11 23:58:04,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-11 23:58:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-07-11 23:58:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:04,753 INFO L225 Difference]: With dead ends: 2626 [2022-07-11 23:58:04,753 INFO L226 Difference]: Without dead ends: 1576 [2022-07-11 23:58:04,755 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 [2022-07-11 23:58:04,756 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 388 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:04,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 58 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-11 23:58:04,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-07-11 23:58:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1445. [2022-07-11 23:58:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.247229916897507) internal successors, (1801), 1444 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1801 transitions. [2022-07-11 23:58:04,787 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1801 transitions. Word has length 111 [2022-07-11 23:58:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:04,788 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1801 transitions. [2022-07-11 23:58:04,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1801 transitions. [2022-07-11 23:58:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-11 23:58:04,793 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:04,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:04,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-11 23:58:04,793 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:04,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:04,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1450875047, now seen corresponding path program 1 times [2022-07-11 23:58:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004745469] [2022-07-11 23:58:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:04,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004745469] [2022-07-11 23:58:04,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004745469] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:04,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348446849] [2022-07-11 23:58:04,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:04,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:04,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:04,939 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) [2022-07-11 23:58:04,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-11 23:58:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:05,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:05,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-07-11 23:58:05,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:05,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348446849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:05,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:05,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-11 23:58:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270399341] [2022-07-11 23:58:05,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:05,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:05,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:05,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:05,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:05,276 INFO L87 Difference]: Start difference. First operand 1445 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:05,645 INFO L93 Difference]: Finished difference Result 2233 states and 2734 transitions. [2022-07-11 23:58:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 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 129 [2022-07-11 23:58:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:05,654 INFO L225 Difference]: With dead ends: 2233 [2022-07-11 23:58:05,654 INFO L226 Difference]: Without dead ends: 2231 [2022-07-11 23:58:05,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:05,656 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 63 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:05,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 31 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-11 23:58:05,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2231. [2022-07-11 23:58:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.2246636771300448) internal successors, (2731), 2230 states have internal predecessors, (2731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2731 transitions. [2022-07-11 23:58:05,700 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2731 transitions. Word has length 129 [2022-07-11 23:58:05,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:05,701 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 2731 transitions. [2022-07-11 23:58:05,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:05,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2731 transitions. [2022-07-11 23:58:05,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-11 23:58:05,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:05,705 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:05,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:05,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-11 23:58:05,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:05,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2027754892, now seen corresponding path program 1 times [2022-07-11 23:58:05,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:05,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844677020] [2022-07-11 23:58:05,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:05,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 23:58:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:06,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844677020] [2022-07-11 23:58:06,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844677020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:06,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 23:58:06,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-11 23:58:06,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970414057] [2022-07-11 23:58:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:06,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:06,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 23:58:06,004 INFO L87 Difference]: Start difference. First operand 2231 states and 2731 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:06,416 INFO L93 Difference]: Finished difference Result 4853 states and 5943 transitions. [2022-07-11 23:58:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:06,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-07-11 23:58:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:06,425 INFO L225 Difference]: With dead ends: 4853 [2022-07-11 23:58:06,426 INFO L226 Difference]: Without dead ends: 2362 [2022-07-11 23:58:06,429 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 [2022-07-11 23:58:06,429 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 102 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:06,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 193 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-11 23:58:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-07-11 23:58:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 1969. [2022-07-11 23:58:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1102642276422765) internal successors, (2185), 1968 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2185 transitions. [2022-07-11 23:58:06,467 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2185 transitions. Word has length 136 [2022-07-11 23:58:06,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:06,467 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2185 transitions. [2022-07-11 23:58:06,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2185 transitions. [2022-07-11 23:58:06,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-07-11 23:58:06,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:06,472 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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] [2022-07-11 23:58:06,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-11 23:58:06,472 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash -575420573, now seen corresponding path program 1 times [2022-07-11 23:58:06,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:06,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296312098] [2022-07-11 23:58:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:06,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 10 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-11 23:58:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296312098] [2022-07-11 23:58:06,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296312098] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:06,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30374181] [2022-07-11 23:58:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:06,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:06,539 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) [2022-07-11 23:58:06,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-11 23:58:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:06,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:06,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-11 23:58:06,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:06,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30374181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:06,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:06,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:06,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643899095] [2022-07-11 23:58:06,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:06,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:06,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:06,833 INFO L87 Difference]: Start difference. First operand 1969 states and 2185 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:07,151 INFO L93 Difference]: Finished difference Result 4067 states and 4521 transitions. [2022-07-11 23:58:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 171 [2022-07-11 23:58:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:07,163 INFO L225 Difference]: With dead ends: 4067 [2022-07-11 23:58:07,163 INFO L226 Difference]: Without dead ends: 2100 [2022-07-11 23:58:07,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:07,167 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 46 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:07,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 164 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:07,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-11 23:58:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2022-07-11 23:58:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.089820359281437) internal successors, (2002), 1837 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2002 transitions. [2022-07-11 23:58:07,203 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2002 transitions. Word has length 171 [2022-07-11 23:58:07,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:07,203 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2002 transitions. [2022-07-11 23:58:07,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:07,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2002 transitions. [2022-07-11 23:58:07,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-11 23:58:07,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:07,208 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-11 23:58:07,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:07,431 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,SelfDestructingSolverStorable7 [2022-07-11 23:58:07,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:07,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1648645907, now seen corresponding path program 1 times [2022-07-11 23:58:07,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:07,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349290398] [2022-07-11 23:58:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:07,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 120 proven. 10 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-11 23:58:07,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:07,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349290398] [2022-07-11 23:58:07,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349290398] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:07,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015179155] [2022-07-11 23:58:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:07,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:07,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:07,504 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) [2022-07-11 23:58:07,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-11 23:58:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:07,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:07,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:07,693 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-11 23:58:07,693 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:07,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015179155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:07,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:07,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:07,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453002990] [2022-07-11 23:58:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:07,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:07,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:07,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:07,694 INFO L87 Difference]: Start difference. First operand 1838 states and 2002 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:08,036 INFO L93 Difference]: Finished difference Result 4198 states and 4584 transitions. [2022-07-11 23:58:08,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:08,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-07-11 23:58:08,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:08,044 INFO L225 Difference]: With dead ends: 4198 [2022-07-11 23:58:08,045 INFO L226 Difference]: Without dead ends: 2362 [2022-07-11 23:58:08,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:08,048 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:08,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 22 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-07-11 23:58:08,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2100. [2022-07-11 23:58:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.0919485469271082) internal successors, (2292), 2099 states have internal predecessors, (2292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2292 transitions. [2022-07-11 23:58:08,086 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2292 transitions. Word has length 203 [2022-07-11 23:58:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:08,086 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2292 transitions. [2022-07-11 23:58:08,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2292 transitions. [2022-07-11 23:58:08,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-11 23:58:08,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:08,091 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 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] [2022-07-11 23:58:08,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-11 23:58:08,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:08,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash 372646815, now seen corresponding path program 1 times [2022-07-11 23:58:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:08,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615181415] [2022-07-11 23:58:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 125 proven. 10 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-07-11 23:58:08,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615181415] [2022-07-11 23:58:08,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615181415] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:08,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719850873] [2022-07-11 23:58:08,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:08,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:08,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:08,388 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) [2022-07-11 23:58:08,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-11 23:58:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:08,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:08,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:08,550 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-11 23:58:08,550 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:08,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719850873] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:08,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:08,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:08,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565646267] [2022-07-11 23:58:08,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:08,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:08,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:08,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:08,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:08,553 INFO L87 Difference]: Start difference. First operand 2100 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:08,854 INFO L93 Difference]: Finished difference Result 5377 states and 5868 transitions. [2022-07-11 23:58:08,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:08,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 208 [2022-07-11 23:58:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:08,864 INFO L225 Difference]: With dead ends: 5377 [2022-07-11 23:58:08,865 INFO L226 Difference]: Without dead ends: 3279 [2022-07-11 23:58:08,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:08,870 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 99 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:08,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 181 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:08,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-07-11 23:58:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 3148. [2022-07-11 23:58:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.0838894184938037) internal successors, (3411), 3147 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3411 transitions. [2022-07-11 23:58:08,926 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3411 transitions. Word has length 208 [2022-07-11 23:58:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:08,927 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 3411 transitions. [2022-07-11 23:58:08,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3411 transitions. [2022-07-11 23:58:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-11 23:58:08,934 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:08,934 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-11 23:58:08,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:09,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:09,147 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:09,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash -252793177, now seen corresponding path program 1 times [2022-07-11 23:58:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:09,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108630123] [2022-07-11 23:58:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:09,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:09,246 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 241 proven. 29 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-07-11 23:58:09,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:09,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108630123] [2022-07-11 23:58:09,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108630123] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:09,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879415183] [2022-07-11 23:58:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:09,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:09,249 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) [2022-07-11 23:58:09,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-11 23:58:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:09,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:09,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-07-11 23:58:09,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:09,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879415183] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:09,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:09,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:09,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544602555] [2022-07-11 23:58:09,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:09,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:09,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:09,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:09,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:09,425 INFO L87 Difference]: Start difference. First operand 3148 states and 3411 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:09,759 INFO L93 Difference]: Finished difference Result 7211 states and 7837 transitions. [2022-07-11 23:58:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:09,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 287 [2022-07-11 23:58:09,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:09,772 INFO L225 Difference]: With dead ends: 7211 [2022-07-11 23:58:09,772 INFO L226 Difference]: Without dead ends: 3934 [2022-07-11 23:58:09,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:09,778 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 116 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:09,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 172 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:09,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2022-07-11 23:58:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3148. [2022-07-11 23:58:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 1.082936129647283) internal successors, (3408), 3147 states have internal predecessors, (3408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 3408 transitions. [2022-07-11 23:58:09,836 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 3408 transitions. Word has length 287 [2022-07-11 23:58:09,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 3408 transitions. [2022-07-11 23:58:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 3408 transitions. [2022-07-11 23:58:09,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-11 23:58:09,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:09,844 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 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, 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] [2022-07-11 23:58:09,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:10,059 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,SelfDestructingSolverStorable10 [2022-07-11 23:58:10,060 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1327867404, now seen corresponding path program 1 times [2022-07-11 23:58:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:10,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046042850] [2022-07-11 23:58:10,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:10,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 224 proven. 10 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-07-11 23:58:10,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:10,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046042850] [2022-07-11 23:58:10,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046042850] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:10,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127470364] [2022-07-11 23:58:10,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:10,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:10,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:10,150 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) [2022-07-11 23:58:10,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-11 23:58:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:10,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-11 23:58:10,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-07-11 23:58:10,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:10,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127470364] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:10,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:10,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:10,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316747459] [2022-07-11 23:58:10,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:10,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 23:58:10,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:10,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 23:58:10,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:10,327 INFO L87 Difference]: Start difference. First operand 3148 states and 3408 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:10,668 INFO L93 Difference]: Finished difference Result 6818 states and 7407 transitions. [2022-07-11 23:58:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 23:58:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2022-07-11 23:58:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:10,681 INFO L225 Difference]: With dead ends: 6818 [2022-07-11 23:58:10,681 INFO L226 Difference]: Without dead ends: 3803 [2022-07-11 23:58:10,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-11 23:58:10,685 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:10,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 176 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-11 23:58:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2022-07-11 23:58:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3410. [2022-07-11 23:58:10,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 1.0794954532120857) internal successors, (3680), 3409 states have internal predecessors, (3680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 3680 transitions. [2022-07-11 23:58:10,741 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 3680 transitions. Word has length 299 [2022-07-11 23:58:10,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:10,741 INFO L495 AbstractCegarLoop]: Abstraction has 3410 states and 3680 transitions. [2022-07-11 23:58:10,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:10,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 3680 transitions. [2022-07-11 23:58:10,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-11 23:58:10,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 23:58:10,749 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 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, 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] [2022-07-11 23:58:10,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:10,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:10,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 23:58:10,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 23:58:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1445198165, now seen corresponding path program 1 times [2022-07-11 23:58:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 23:58:10,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181683974] [2022-07-11 23:58:10,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:10,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 23:58:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 241 proven. 10 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2022-07-11 23:58:11,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 23:58:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181683974] [2022-07-11 23:58:11,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181683974] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 23:58:11,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909375885] [2022-07-11 23:58:11,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 23:58:11,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:11,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 23:58:11,066 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) [2022-07-11 23:58:11,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-11 23:58:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 23:58:11,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-11 23:58:11,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 23:58:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2022-07-11 23:58:11,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 23:58:11,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909375885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 23:58:11,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-11 23:58:11,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-11 23:58:11,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289710871] [2022-07-11 23:58:11,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 23:58:11,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-11 23:58:11,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 23:58:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-11 23:58:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-11 23:58:11,328 INFO L87 Difference]: Start difference. First operand 3410 states and 3680 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:11,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 23:58:11,770 INFO L93 Difference]: Finished difference Result 6292 states and 6792 transitions. [2022-07-11 23:58:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-11 23:58:11,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 316 [2022-07-11 23:58:11,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 23:58:11,772 INFO L225 Difference]: With dead ends: 6292 [2022-07-11 23:58:11,772 INFO L226 Difference]: Without dead ends: 0 [2022-07-11 23:58:11,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-11 23:58:11,778 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 318 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-11 23:58:11,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 34 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-11 23:58:11,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-11 23:58:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-11 23:58:11,783 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) [2022-07-11 23:58:11,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-11 23:58:11,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 316 [2022-07-11 23:58:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 23:58:11,784 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-11 23:58:11,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-11 23:58:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-11 23:58:11,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-11 23:58:11,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-11 23:58:11,813 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-11 23:58:12,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 23:58:12,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-11 23:58:13,057 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-07-11 23:58:13,057 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-07-11 23:58:13,057 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-07-11 23:58:13,057 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-07-11 23:58:13,057 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-07-11 23:58:13,058 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,059 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-07-11 23:58:13,060 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-07-11 23:58:13,061 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,062 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,063 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-07-11 23:58:13,064 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-07-11 23:58:13,065 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-07-11 23:58:13,066 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 14)) (.cse5 (<= 5 ~a16~0)) (.cse6 (<= ~a17~0 0)) (.cse4 (<= ~a16~0 5)) (.cse0 (<= ~a7~0 0)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a17~0 1)) (.cse9 (= ~a20~0 1)) (.cse1 (<= ~a20~0 0)) (.cse8 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse2) (and .cse0 (<= 6 ~a16~0) .cse6 .cse2) (and .cse8 .cse6 .cse2) (and .cse8 .cse6 .cse9) (and .cse8 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse7 .cse2) (and .cse1 .cse6 .cse2) (and .cse0 .cse6 .cse2 .cse9) (and .cse5 (not (= ~a7~0 1)) .cse6 .cse2 .cse9) (and .cse8 .cse3 .cse4 .cse9) (and .cse0 .cse2 .cse3 .cse9) (and .cse1 .cse8))) [2022-07-11 23:58:13,067 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,067 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,067 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,067 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-07-11 23:58:13,069 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-07-11 23:58:13,070 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,071 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-07-11 23:58:13,072 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,073 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-07-11 23:58:13,074 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-07-11 23:58:13,075 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-07-11 23:58:13,076 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-07-11 23:58:13,076 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-07-11 23:58:13,076 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,076 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse7 (<= ~a8~0 14)) (.cse5 (<= 5 ~a16~0)) (.cse6 (<= ~a17~0 0)) (.cse4 (<= ~a16~0 5)) (.cse0 (<= ~a7~0 0)) (.cse2 (= ~a21~0 1)) (.cse3 (= ~a17~0 1)) (.cse9 (= ~a20~0 1)) (.cse1 (<= ~a20~0 0)) (.cse8 (<= ~a8~0 13))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse7 .cse2) (and .cse0 (<= 6 ~a16~0) .cse6 .cse2) (and .cse8 .cse6 .cse2) (and .cse8 .cse6 .cse9) (and .cse8 .cse2 .cse3 .cse9) (and .cse0 .cse6 .cse7 .cse2) (and .cse1 .cse6 .cse2) (and .cse0 .cse6 .cse2 .cse9) (and .cse5 (not (= ~a7~0 1)) .cse6 .cse2 .cse9) (and .cse8 .cse3 .cse4 .cse9) (and .cse0 .cse2 .cse3 .cse9) (and .cse1 .cse8))) [2022-07-11 23:58:13,076 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,076 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 462) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-07-11 23:58:13,077 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,078 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-07-11 23:58:13,079 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-07-11 23:58:13,082 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 23:58:13,084 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-11 23:58:13,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 11:58:13 BoogieIcfgContainer [2022-07-11 23:58:13,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-11 23:58:13,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-11 23:58:13,105 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-11 23:58:13,105 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-11 23:58:13,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 11:58:01" (3/4) ... [2022-07-11 23:58:13,108 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-11 23:58:13,124 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-11 23:58:13,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-11 23:58:13,125 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-11 23:58:13,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-11 23:58:13,216 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-11 23:58:13,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-11 23:58:13,217 INFO L158 Benchmark]: Toolchain (without parser) took 13507.81ms. Allocated memory was 94.4MB in the beginning and 272.6MB in the end (delta: 178.3MB). Free memory was 64.3MB in the beginning and 218.7MB in the end (delta: -154.3MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,217 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-11 23:58:13,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.91ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 79.1MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.34ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 73.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,218 INFO L158 Benchmark]: Boogie Preprocessor took 67.29ms. Allocated memory is still 119.5MB. Free memory was 73.2MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,219 INFO L158 Benchmark]: RCFGBuilder took 962.45ms. Allocated memory is still 119.5MB. Free memory was 69.0MB in the beginning and 85.0MB in the end (delta: -16.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,220 INFO L158 Benchmark]: TraceAbstraction took 11785.58ms. Allocated memory was 119.5MB in the beginning and 272.6MB in the end (delta: 153.1MB). Free memory was 85.0MB in the beginning and 229.2MB in the end (delta: -144.1MB). Peak memory consumption was 134.9MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,220 INFO L158 Benchmark]: Witness Printer took 111.73ms. Allocated memory is still 272.6MB. Free memory was 229.2MB in the beginning and 218.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-11 23:58:13,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 94.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.91ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 79.1MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.34ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 73.2MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.29ms. Allocated memory is still 119.5MB. Free memory was 73.2MB in the beginning and 69.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 962.45ms. Allocated memory is still 119.5MB. Free memory was 69.0MB in the beginning and 85.0MB in the end (delta: -16.0MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11785.58ms. Allocated memory was 119.5MB in the beginning and 272.6MB in the end (delta: 153.1MB). Free memory was 85.0MB in the beginning and 229.2MB in the end (delta: -144.1MB). Peak memory consumption was 134.9MB. Max. memory is 16.1GB. * Witness Printer took 111.73ms. Allocated memory is still 272.6MB. Free memory was 229.2MB in the beginning and 218.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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: 462]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 13, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1871 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1871 mSDsluCounter, 1220 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 74 mSDsCounter, 739 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4519 IncrementalHoareTripleChecker+Invalid, 5258 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 739 mSolverCounterUnsat, 1146 mSDtfsCounter, 4519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1641 GetRequests, 1612 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3410occurred in iteration=12, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 2489 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 57 NumberOfFragments, 345 HoareAnnotationTreeSize, 3 FomulaSimplifications, 240 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 3088 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 3877 NumberOfCodeBlocks, 3877 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3857 ConstructedInterpolants, 0 QuantifiedInterpolants, 7539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3134 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 20 InterpolantComputations, 13 PerfectInterpolantSequences, 4736/4851 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: 593]: Loop Invariant Derived loop invariant: (((((((((((((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) || (((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5)) || (((5 <= a16 && a17 <= 0) && a8 <= 14) && a21 == 1)) || (((a7 <= 0 && 6 <= a16) && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a17 <= 0) && a8 <= 14) && a21 == 1)) || ((a20 <= 0 && a17 <= 0) && a21 == 1)) || (((a7 <= 0 && a17 <= 0) && a21 == 1) && a20 == 1)) || ((((5 <= a16 && !(a7 == 1)) && a17 <= 0) && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a17 == 1) && a16 <= 5) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || (a20 <= 0 && a8 <= 13) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((((a7 <= 0 && a20 <= 0) && a21 == 1) && a17 == 1) || (((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5)) || (((5 <= a16 && a17 <= 0) && a8 <= 14) && a21 == 1)) || (((a7 <= 0 && 6 <= a16) && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a21 == 1)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a17 == 1) && a20 == 1)) || (((a7 <= 0 && a17 <= 0) && a8 <= 14) && a21 == 1)) || ((a20 <= 0 && a17 <= 0) && a21 == 1)) || (((a7 <= 0 && a17 <= 0) && a21 == 1) && a20 == 1)) || ((((5 <= a16 && !(a7 == 1)) && a17 <= 0) && a21 == 1) && a20 == 1)) || (((a8 <= 13 && a17 == 1) && a16 <= 5) && a20 == 1)) || (((a7 <= 0 && a21 == 1) && a17 == 1) && a20 == 1)) || (a20 <= 0 && a8 <= 13) RESULT: Ultimate proved your program to be correct! [2022-07-11 23:58:13,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE