./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label55.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 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 12:26:24,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 12:26:24,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 12:26:24,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 12:26:24,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 12:26:24,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 12:26:24,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 12:26:24,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 12:26:24,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 12:26:24,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 12:26:24,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 12:26:24,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 12:26:24,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 12:26:24,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 12:26:24,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 12:26:24,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 12:26:24,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 12:26:24,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 12:26:24,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 12:26:24,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 12:26:24,413 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 12:26:24,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 12:26:24,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 12:26:24,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 12:26:24,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 12:26:24,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 12:26:24,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 12:26:24,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 12:26:24,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 12:26:24,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 12:26:24,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 12:26:24,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 12:26:24,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 12:26:24,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 12:26:24,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 12:26:24,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 12:26:24,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 12:26:24,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 12:26:24,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 12:26:24,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 12:26:24,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 12:26:24,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 12:26:24,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 12:26:24,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 12:26:24,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 12:26:24,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 12:26:24,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 12:26:24,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 12:26:24,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 12:26:24,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 12:26:24,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 12:26:24,469 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 12:26:24,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 12:26:24,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 12:26:24,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 12:26:24,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 12:26:24,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 12:26:24,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 12:26:24,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 12:26:24,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 12:26:24,472 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 12:26:24,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 12:26:24,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 12:26:24,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 12:26:24,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 12:26:24,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 12:26:24,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 12:26:24,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 12:26:24,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 12:26:24,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 12:26:24,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 12:26:24,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 12:26:24,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 12:26:24,475 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 12:26:24,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 12:26:24,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 12:26:24,476 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 [2022-07-19 12:26:24,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 12:26:24,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 12:26:24,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 12:26:24,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 12:26:24,739 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 12:26:24,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2022-07-19 12:26:24,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92207e009/870ad156becb4290ad6772bbb427373f/FLAG98e5cdd9b [2022-07-19 12:26:25,347 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 12:26:25,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2022-07-19 12:26:25,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92207e009/870ad156becb4290ad6772bbb427373f/FLAG98e5cdd9b [2022-07-19 12:26:25,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92207e009/870ad156becb4290ad6772bbb427373f [2022-07-19 12:26:25,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 12:26:25,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 12:26:25,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 12:26:25,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 12:26:25,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 12:26:25,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 12:26:25" (1/1) ... [2022-07-19 12:26:25,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a265fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:25, skipping insertion in model container [2022-07-19 12:26:25,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 12:26:25" (1/1) ... [2022-07-19 12:26:25,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 12:26:25,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 12:26:25,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2022-07-19 12:26:26,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 12:26:26,073 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 12:26:26,096 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2022-07-19 12:26:26,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 12:26:26,189 INFO L208 MainTranslator]: Completed translation [2022-07-19 12:26:26,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26 WrapperNode [2022-07-19 12:26:26,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 12:26:26,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 12:26:26,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 12:26:26,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 12:26:26,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,339 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-07-19 12:26:26,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 12:26:26,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 12:26:26,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 12:26:26,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 12:26:26,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 12:26:26,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 12:26:26,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 12:26:26,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 12:26:26,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (1/1) ... [2022-07-19 12:26:26,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 12:26:26,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:26,513 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) [2022-07-19 12:26:26,534 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 [2022-07-19 12:26:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 12:26:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 12:26:26,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 12:26:26,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 12:26:26,629 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 12:26:26,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 12:26:27,836 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 12:26:27,849 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 12:26:27,849 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 12:26:27,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 12:26:27 BoogieIcfgContainer [2022-07-19 12:26:27,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 12:26:27,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 12:26:27,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 12:26:27,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 12:26:27,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 12:26:25" (1/3) ... [2022-07-19 12:26:27,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50472464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 12:26:27, skipping insertion in model container [2022-07-19 12:26:27,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 12:26:26" (2/3) ... [2022-07-19 12:26:27,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50472464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 12:26:27, skipping insertion in model container [2022-07-19 12:26:27,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 12:26:27" (3/3) ... [2022-07-19 12:26:27,860 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label55.c [2022-07-19 12:26:27,871 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 12:26:27,871 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 12:26:27,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 12:26:27,925 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@318b2cc6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4334dccd [2022-07-19 12:26:27,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 12:26:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-19 12:26:27,939 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:27,940 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] [2022-07-19 12:26:27,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:27,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:27,945 INFO L85 PathProgramCache]: Analyzing trace with hash -66916295, now seen corresponding path program 1 times [2022-07-19 12:26:27,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:27,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220383903] [2022-07-19 12:26:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 12:26:28,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:28,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220383903] [2022-07-19 12:26:28,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220383903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:28,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:28,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 12:26:28,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599132172] [2022-07-19 12:26:28,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:28,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:28,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:28,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:28,273 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:29,118 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2022-07-19 12:26:29,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:29,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-07-19 12:26:29,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:29,132 INFO L225 Difference]: With dead ends: 685 [2022-07-19 12:26:29,133 INFO L226 Difference]: Without dead ends: 360 [2022-07-19 12:26:29,136 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 [2022-07-19 12:26:29,142 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 161 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:29,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 139 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-19 12:26:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-19 12:26:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-07-19 12:26:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2022-07-19 12:26:29,226 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 57 [2022-07-19 12:26:29,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:29,229 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2022-07-19 12:26:29,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2022-07-19 12:26:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-19 12:26:29,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:29,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:29,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 12:26:29,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:29,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:29,242 INFO L85 PathProgramCache]: Analyzing trace with hash -2108066841, now seen corresponding path program 1 times [2022-07-19 12:26:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:29,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226348702] [2022-07-19 12:26:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 12:26:29,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:29,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226348702] [2022-07-19 12:26:29,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226348702] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:29,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:29,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:29,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933671780] [2022-07-19 12:26:29,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:29,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 12:26:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 12:26:29,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 12:26:29,438 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 34.0) 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) [2022-07-19 12:26:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:30,411 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2022-07-19 12:26:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 12:26:30,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) 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 [2022-07-19 12:26:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:30,414 INFO L225 Difference]: With dead ends: 1074 [2022-07-19 12:26:30,415 INFO L226 Difference]: Without dead ends: 716 [2022-07-19 12:26:30,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:30,417 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:30,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 121 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-19 12:26:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-19 12:26:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-19 12:26:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:30,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2022-07-19 12:26:30,440 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 136 [2022-07-19 12:26:30,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:30,440 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2022-07-19 12:26:30,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) 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) [2022-07-19 12:26:30,441 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2022-07-19 12:26:30,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-19 12:26:30,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:30,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 12:26:30,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 12:26:30,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:30,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:30,444 INFO L85 PathProgramCache]: Analyzing trace with hash -525654712, now seen corresponding path program 1 times [2022-07-19 12:26:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:30,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313196091] [2022-07-19 12:26:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:30,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-07-19 12:26:30,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:30,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313196091] [2022-07-19 12:26:30,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313196091] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:30,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474662391] [2022-07-19 12:26:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:30,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:30,639 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) [2022-07-19 12:26:30,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 12:26:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:30,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:30,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-19 12:26:31,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:31,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474662391] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:31,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:31,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-07-19 12:26:31,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962517401] [2022-07-19 12:26:31,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:31,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:31,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:31,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:31,056 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:31,633 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2022-07-19 12:26:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:31,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2022-07-19 12:26:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:31,639 INFO L225 Difference]: With dead ends: 1252 [2022-07-19 12:26:31,640 INFO L226 Difference]: Without dead ends: 1250 [2022-07-19 12:26:31,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:31,642 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:31,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 12:26:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-07-19 12:26:31,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2022-07-19 12:26:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2022-07-19 12:26:31,665 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 162 [2022-07-19 12:26:31,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2022-07-19 12:26:31,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:31,666 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2022-07-19 12:26:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-07-19 12:26:31,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:31,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:31,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:31,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:31,884 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:31,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2083123476, now seen corresponding path program 1 times [2022-07-19 12:26:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:31,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424661312] [2022-07-19 12:26:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 12:26:32,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:32,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424661312] [2022-07-19 12:26:32,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424661312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:32,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:32,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:32,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444917760] [2022-07-19 12:26:32,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:32,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 12:26:32,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 12:26:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 12:26:32,062 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:32,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:32,739 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2022-07-19 12:26:32,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 12:26:32,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2022-07-19 12:26:32,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:32,743 INFO L225 Difference]: With dead ends: 1993 [2022-07-19 12:26:32,744 INFO L226 Difference]: Without dead ends: 1072 [2022-07-19 12:26:32,745 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 [2022-07-19 12:26:32,746 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:32,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 12:26:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-07-19 12:26:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2022-07-19 12:26:32,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2022-07-19 12:26:32,768 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 216 [2022-07-19 12:26:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:32,769 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2022-07-19 12:26:32,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:32,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2022-07-19 12:26:32,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-19 12:26:32,772 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:32,772 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2022-07-19 12:26:32,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 12:26:32,772 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:32,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:32,773 INFO L85 PathProgramCache]: Analyzing trace with hash -971236136, now seen corresponding path program 1 times [2022-07-19 12:26:32,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:32,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401902588] [2022-07-19 12:26:32,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:32,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 12:26:32,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401902588] [2022-07-19 12:26:32,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401902588] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:32,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243181275] [2022-07-19 12:26:32,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:32,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:32,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:32,892 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) [2022-07-19 12:26:32,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 12:26:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:33,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:33,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-07-19 12:26:33,206 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:33,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243181275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:33,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:33,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-19 12:26:33,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369316026] [2022-07-19 12:26:33,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:33,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:33,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:33,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:33,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:33,209 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:33,697 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2022-07-19 12:26:33,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:33,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2022-07-19 12:26:33,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:33,705 INFO L225 Difference]: With dead ends: 2320 [2022-07-19 12:26:33,705 INFO L226 Difference]: Without dead ends: 1250 [2022-07-19 12:26:33,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:33,707 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:33,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 12:26:33,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-07-19 12:26:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2022-07-19 12:26:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2022-07-19 12:26:33,726 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 228 [2022-07-19 12:26:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:33,727 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2022-07-19 12:26:33,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2022-07-19 12:26:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-07-19 12:26:33,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:33,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:33,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:33,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:33,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash -39272449, now seen corresponding path program 1 times [2022-07-19 12:26:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:33,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490836201] [2022-07-19 12:26:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 12:26:34,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:34,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490836201] [2022-07-19 12:26:34,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490836201] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:34,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:34,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:34,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710429621] [2022-07-19 12:26:34,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:34,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:34,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:34,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:34,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:34,075 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:34,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:34,567 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2022-07-19 12:26:34,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:34,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 231 [2022-07-19 12:26:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:34,574 INFO L225 Difference]: With dead ends: 2854 [2022-07-19 12:26:34,575 INFO L226 Difference]: Without dead ends: 1784 [2022-07-19 12:26:34,577 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 [2022-07-19 12:26:34,581 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:34,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 12:26:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2022-07-19 12:26:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2022-07-19 12:26:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1289960740325296) internal successors, (2013), 1783 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2022-07-19 12:26:34,617 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 231 [2022-07-19 12:26:34,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:34,618 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2022-07-19 12:26:34,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2022-07-19 12:26:34,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-07-19 12:26:34,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:34,623 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2022-07-19 12:26:34,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 12:26:34,623 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:34,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1928919929, now seen corresponding path program 1 times [2022-07-19 12:26:34,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:34,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402560587] [2022-07-19 12:26:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:34,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-19 12:26:34,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:34,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402560587] [2022-07-19 12:26:34,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402560587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:34,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:34,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:34,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361815935] [2022-07-19 12:26:34,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:34,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 12:26:34,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:34,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 12:26:34,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 12:26:34,811 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:35,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:35,395 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2022-07-19 12:26:35,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 12:26:35,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2022-07-19 12:26:35,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:35,402 INFO L225 Difference]: With dead ends: 3624 [2022-07-19 12:26:35,403 INFO L226 Difference]: Without dead ends: 1962 [2022-07-19 12:26:35,405 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 [2022-07-19 12:26:35,406 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:35,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 12:26:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-07-19 12:26:35,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-07-19 12:26:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.0846887268648346) internal successors, (1934), 1783 states have internal predecessors, (1934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2022-07-19 12:26:35,441 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 348 [2022-07-19 12:26:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:35,442 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2022-07-19 12:26:35,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:35,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2022-07-19 12:26:35,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-07-19 12:26:35,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:35,449 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:35,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 12:26:35,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:35,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:35,450 INFO L85 PathProgramCache]: Analyzing trace with hash 577845055, now seen corresponding path program 1 times [2022-07-19 12:26:35,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:35,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776977914] [2022-07-19 12:26:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:35,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-19 12:26:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776977914] [2022-07-19 12:26:35,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776977914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:35,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:35,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:35,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734595922] [2022-07-19 12:26:35,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:35,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:35,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:35,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:35,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:35,669 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:36,142 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2022-07-19 12:26:36,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:36,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 443 [2022-07-19 12:26:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:36,152 INFO L225 Difference]: With dead ends: 4278 [2022-07-19 12:26:36,152 INFO L226 Difference]: Without dead ends: 2674 [2022-07-19 12:26:36,155 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 [2022-07-19 12:26:36,156 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:36,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:36,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-07-19 12:26:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2022-07-19 12:26:36,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.071996259934549) internal successors, (2293), 2139 states have internal predecessors, (2293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2022-07-19 12:26:36,232 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 443 [2022-07-19 12:26:36,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:36,233 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2022-07-19 12:26:36,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2022-07-19 12:26:36,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2022-07-19 12:26:36,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:36,240 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:36,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 12:26:36,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:36,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1408157574, now seen corresponding path program 1 times [2022-07-19 12:26:36,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:36,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751247457] [2022-07-19 12:26:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:36,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-19 12:26:36,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:36,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751247457] [2022-07-19 12:26:36,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751247457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:36,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:36,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:36,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141597746] [2022-07-19 12:26:36,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:36,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:36,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:36,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:36,415 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:36,918 INFO L93 Difference]: Finished difference Result 4812 states and 5228 transitions. [2022-07-19 12:26:36,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:36,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 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 450 [2022-07-19 12:26:36,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:36,928 INFO L225 Difference]: With dead ends: 4812 [2022-07-19 12:26:36,929 INFO L226 Difference]: Without dead ends: 2852 [2022-07-19 12:26:36,931 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 [2022-07-19 12:26:36,931 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:36,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:36,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-07-19 12:26:36,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2022-07-19 12:26:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.0785689231848474) internal successors, (3075), 2851 states have internal predecessors, (3075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3075 transitions. [2022-07-19 12:26:36,982 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3075 transitions. Word has length 450 [2022-07-19 12:26:36,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:36,983 INFO L495 AbstractCegarLoop]: Abstraction has 2852 states and 3075 transitions. [2022-07-19 12:26:36,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3075 transitions. [2022-07-19 12:26:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-07-19 12:26:36,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:36,992 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:36,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 12:26:36,993 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash -614119137, now seen corresponding path program 1 times [2022-07-19 12:26:36,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:36,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965934555] [2022-07-19 12:26:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-19 12:26:37,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:37,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965934555] [2022-07-19 12:26:37,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965934555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:37,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:37,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:37,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686814949] [2022-07-19 12:26:37,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:37,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:37,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:37,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:37,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:37,192 INFO L87 Difference]: Start difference. First operand 2852 states and 3075 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:37,676 INFO L93 Difference]: Finished difference Result 6592 states and 7212 transitions. [2022-07-19 12:26:37,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:37,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 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 491 [2022-07-19 12:26:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:37,689 INFO L225 Difference]: With dead ends: 6592 [2022-07-19 12:26:37,690 INFO L226 Difference]: Without dead ends: 3920 [2022-07-19 12:26:37,693 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 [2022-07-19 12:26:37,694 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:37,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:37,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-07-19 12:26:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2022-07-19 12:26:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0783047993264103) internal successors, (3842), 3563 states have internal predecessors, (3842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3842 transitions. [2022-07-19 12:26:37,768 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3842 transitions. Word has length 491 [2022-07-19 12:26:37,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:37,769 INFO L495 AbstractCegarLoop]: Abstraction has 3564 states and 3842 transitions. [2022-07-19 12:26:37,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:37,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3842 transitions. [2022-07-19 12:26:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 637 [2022-07-19 12:26:37,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:37,775 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:37,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 12:26:37,776 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash -596499667, now seen corresponding path program 1 times [2022-07-19 12:26:37,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:37,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328612564] [2022-07-19 12:26:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:37,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 1144 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-19 12:26:38,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:38,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328612564] [2022-07-19 12:26:38,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328612564] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:38,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379157145] [2022-07-19 12:26:38,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:38,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:38,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:38,108 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) [2022-07-19 12:26:38,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 12:26:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:38,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:38,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-07-19 12:26:38,382 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:38,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379157145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:38,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:38,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-19 12:26:38,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633339319] [2022-07-19 12:26:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:38,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:38,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:38,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:38,385 INFO L87 Difference]: Start difference. First operand 3564 states and 3842 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:38,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:38,878 INFO L93 Difference]: Finished difference Result 8016 states and 8685 transitions. [2022-07-19 12:26:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:38,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 636 [2022-07-19 12:26:38,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:38,899 INFO L225 Difference]: With dead ends: 8016 [2022-07-19 12:26:38,900 INFO L226 Difference]: Without dead ends: 4632 [2022-07-19 12:26:38,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:38,905 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 124 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:38,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 247 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-19 12:26:38,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4454. [2022-07-19 12:26:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.072086233999551) internal successors, (4774), 4453 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4774 transitions. [2022-07-19 12:26:38,992 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4774 transitions. Word has length 636 [2022-07-19 12:26:38,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:38,993 INFO L495 AbstractCegarLoop]: Abstraction has 4454 states and 4774 transitions. [2022-07-19 12:26:38,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4774 transitions. [2022-07-19 12:26:38,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2022-07-19 12:26:39,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:39,000 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:39,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:39,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:39,223 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:39,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:39,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1688245835, now seen corresponding path program 1 times [2022-07-19 12:26:39,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:39,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946664251] [2022-07-19 12:26:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:39,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1199 proven. 104 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-19 12:26:39,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:39,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946664251] [2022-07-19 12:26:39,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946664251] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:39,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980924728] [2022-07-19 12:26:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:39,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:39,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:39,575 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) [2022-07-19 12:26:39,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 12:26:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:39,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 12:26:39,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1672 backedges. 1226 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-07-19 12:26:40,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:40,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980924728] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:40,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:40,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-19 12:26:40,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294700151] [2022-07-19 12:26:40,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:40,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:40,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:40,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:40,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:40,288 INFO L87 Difference]: Start difference. First operand 4454 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:40,747 INFO L93 Difference]: Finished difference Result 8906 states and 9561 transitions. [2022-07-19 12:26:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:40,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 648 [2022-07-19 12:26:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:40,763 INFO L225 Difference]: With dead ends: 8906 [2022-07-19 12:26:40,763 INFO L226 Difference]: Without dead ends: 4632 [2022-07-19 12:26:40,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 647 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:40,770 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:40,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:40,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-19 12:26:40,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4276. [2022-07-19 12:26:40,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.0692397660818713) internal successors, (4571), 4275 states have internal predecessors, (4571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:40,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4571 transitions. [2022-07-19 12:26:40,852 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4571 transitions. Word has length 648 [2022-07-19 12:26:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:40,853 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4571 transitions. [2022-07-19 12:26:40,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4571 transitions. [2022-07-19 12:26:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2022-07-19 12:26:40,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:40,875 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:40,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:41,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:41,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1823211339, now seen corresponding path program 1 times [2022-07-19 12:26:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:41,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781790295] [2022-07-19 12:26:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 1329 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-19 12:26:41,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:41,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781790295] [2022-07-19 12:26:41,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781790295] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360474223] [2022-07-19 12:26:41,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:41,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:41,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:41,389 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) [2022-07-19 12:26:41,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 12:26:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:41,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:41,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:41,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1853 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2022-07-19 12:26:41,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:41,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360474223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:41,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:41,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-19 12:26:41,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738775220] [2022-07-19 12:26:41,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:41,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:41,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:41,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:41,693 INFO L87 Difference]: Start difference. First operand 4276 states and 4571 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:42,159 INFO L93 Difference]: Finished difference Result 9084 states and 9771 transitions. [2022-07-19 12:26:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:42,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 793 [2022-07-19 12:26:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:42,180 INFO L225 Difference]: With dead ends: 9084 [2022-07-19 12:26:42,181 INFO L226 Difference]: Without dead ends: 4988 [2022-07-19 12:26:42,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 793 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:42,187 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 124 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:42,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 245 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-19 12:26:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2022-07-19 12:26:42,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0665419006030359) internal successors, (5129), 4809 states have internal predecessors, (5129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:42,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5129 transitions. [2022-07-19 12:26:42,266 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5129 transitions. Word has length 793 [2022-07-19 12:26:42,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:42,268 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 5129 transitions. [2022-07-19 12:26:42,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5129 transitions. [2022-07-19 12:26:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2022-07-19 12:26:42,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:42,284 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:42,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:42,503 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,SelfDestructingSolverStorable12 [2022-07-19 12:26:42,504 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash 334147935, now seen corresponding path program 1 times [2022-07-19 12:26:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:42,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683595435] [2022-07-19 12:26:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 1369 proven. 155 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-07-19 12:26:42,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:42,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683595435] [2022-07-19 12:26:42,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683595435] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334617735] [2022-07-19 12:26:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:42,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:42,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:42,798 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) [2022-07-19 12:26:42,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 12:26:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:42,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:43,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2022-07-19 12:26:43,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:43,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334617735] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:43,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:43,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-19 12:26:43,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215773298] [2022-07-19 12:26:43,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:43,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:43,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:43,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:43,075 INFO L87 Difference]: Start difference. First operand 4810 states and 5129 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:43,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:43,537 INFO L93 Difference]: Finished difference Result 10686 states and 11426 transitions. [2022-07-19 12:26:43,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:43,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 801 [2022-07-19 12:26:43,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:43,550 INFO L225 Difference]: With dead ends: 10686 [2022-07-19 12:26:43,550 INFO L226 Difference]: Without dead ends: 6056 [2022-07-19 12:26:43,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-19 12:26:43,557 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 128 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:43,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 59 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:43,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-19 12:26:43,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5344. [2022-07-19 12:26:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0668163952835485) internal successors, (5700), 5343 states have internal predecessors, (5700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:43,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5700 transitions. [2022-07-19 12:26:43,640 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5700 transitions. Word has length 801 [2022-07-19 12:26:43,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:43,641 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5700 transitions. [2022-07-19 12:26:43,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5700 transitions. [2022-07-19 12:26:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2022-07-19 12:26:43,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:43,652 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:43,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:43,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:43,868 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:43,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:43,868 INFO L85 PathProgramCache]: Analyzing trace with hash 224722179, now seen corresponding path program 1 times [2022-07-19 12:26:43,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:43,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519425039] [2022-07-19 12:26:43,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:43,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2434 backedges. 1586 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2022-07-19 12:26:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:44,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519425039] [2022-07-19 12:26:44,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519425039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:44,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:44,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027094172] [2022-07-19 12:26:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:44,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:44,181 INFO L87 Difference]: Start difference. First operand 5344 states and 5700 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:44,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:44,628 INFO L93 Difference]: Finished difference Result 11042 states and 11817 transitions. [2022-07-19 12:26:44,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:44,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 884 [2022-07-19 12:26:44,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:44,642 INFO L225 Difference]: With dead ends: 11042 [2022-07-19 12:26:44,642 INFO L226 Difference]: Without dead ends: 5878 [2022-07-19 12:26:44,648 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 [2022-07-19 12:26:44,649 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:44,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-07-19 12:26:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2022-07-19 12:26:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.061596052407691) internal successors, (6239), 5877 states have internal predecessors, (6239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6239 transitions. [2022-07-19 12:26:44,730 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6239 transitions. Word has length 884 [2022-07-19 12:26:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:44,731 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6239 transitions. [2022-07-19 12:26:44,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6239 transitions. [2022-07-19 12:26:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2022-07-19 12:26:44,742 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:44,743 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 12:26:44,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 12:26:44,743 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:44,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:44,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1279771883, now seen corresponding path program 1 times [2022-07-19 12:26:44,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:44,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893884207] [2022-07-19 12:26:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2638 backedges. 1790 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2022-07-19 12:26:45,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:45,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893884207] [2022-07-19 12:26:45,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893884207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:45,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:45,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:45,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124612160] [2022-07-19 12:26:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:45,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:45,052 INFO L87 Difference]: Start difference. First operand 5878 states and 6239 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:45,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:45,461 INFO L93 Difference]: Finished difference Result 11398 states and 12115 transitions. [2022-07-19 12:26:45,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:45,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 903 [2022-07-19 12:26:45,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:45,472 INFO L225 Difference]: With dead ends: 11398 [2022-07-19 12:26:45,472 INFO L226 Difference]: Without dead ends: 5700 [2022-07-19 12:26:45,479 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 [2022-07-19 12:26:45,480 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:45,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:45,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-19 12:26:45,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5522. [2022-07-19 12:26:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0525267161746061) internal successors, (5811), 5521 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:45,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5811 transitions. [2022-07-19 12:26:45,561 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5811 transitions. Word has length 903 [2022-07-19 12:26:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:45,561 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5811 transitions. [2022-07-19 12:26:45,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5811 transitions. [2022-07-19 12:26:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2022-07-19 12:26:45,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:45,574 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 12:26:45,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-19 12:26:45,575 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:45,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:45,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1603463533, now seen corresponding path program 1 times [2022-07-19 12:26:45,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:45,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996930550] [2022-07-19 12:26:45,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:45,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 1780 proven. 93 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-07-19 12:26:45,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:45,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996930550] [2022-07-19 12:26:45,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996930550] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:45,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108043334] [2022-07-19 12:26:45,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:45,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:45,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:45,900 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) [2022-07-19 12:26:45,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 12:26:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:46,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 12:26:46,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2674 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 2290 trivial. 0 not checked. [2022-07-19 12:26:46,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:46,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108043334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:46,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:46,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-19 12:26:46,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059188645] [2022-07-19 12:26:46,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:46,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:46,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:46,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:46,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:46,237 INFO L87 Difference]: Start difference. First operand 5522 states and 5811 transitions. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:46,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:46,642 INFO L93 Difference]: Finished difference Result 10864 states and 11441 transitions. [2022-07-19 12:26:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:46,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 927 [2022-07-19 12:26:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:46,652 INFO L225 Difference]: With dead ends: 10864 [2022-07-19 12:26:46,653 INFO L226 Difference]: Without dead ends: 5522 [2022-07-19 12:26:46,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:46,659 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 127 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:46,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 211 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-19 12:26:46,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2022-07-19 12:26:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0495976043421298) internal successors, (5608), 5343 states have internal predecessors, (5608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5608 transitions. [2022-07-19 12:26:46,736 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5608 transitions. Word has length 927 [2022-07-19 12:26:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:46,736 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5608 transitions. [2022-07-19 12:26:46,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5608 transitions. [2022-07-19 12:26:46,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 936 [2022-07-19 12:26:46,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:46,749 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 12:26:46,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:46,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:46,964 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:46,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:46,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1365813249, now seen corresponding path program 1 times [2022-07-19 12:26:46,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:46,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790579532] [2022-07-19 12:26:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1794 proven. 93 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-07-19 12:26:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:47,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790579532] [2022-07-19 12:26:47,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790579532] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:47,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504461374] [2022-07-19 12:26:47,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:47,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:47,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:47,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 12:26:47,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 12:26:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:47,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 12:26:47,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:48,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 990 proven. 0 refuted. 0 times theorem prover too weak. 1707 trivial. 0 not checked. [2022-07-19 12:26:48,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:48,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504461374] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:48,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:48,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-19 12:26:48,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549822733] [2022-07-19 12:26:48,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:48,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:48,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:48,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:48,281 INFO L87 Difference]: Start difference. First operand 5344 states and 5608 transitions. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:48,671 INFO L93 Difference]: Finished difference Result 11932 states and 12494 transitions. [2022-07-19 12:26:48,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:48,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 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 935 [2022-07-19 12:26:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:48,683 INFO L225 Difference]: With dead ends: 11932 [2022-07-19 12:26:48,683 INFO L226 Difference]: Without dead ends: 6768 [2022-07-19 12:26:48,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 934 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:48,689 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:48,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 12:26:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2022-07-19 12:26:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 5522. [2022-07-19 12:26:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0492664372396305) internal successors, (5793), 5521 states have internal predecessors, (5793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5793 transitions. [2022-07-19 12:26:48,819 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5793 transitions. Word has length 935 [2022-07-19 12:26:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:48,819 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5793 transitions. [2022-07-19 12:26:48,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5793 transitions. [2022-07-19 12:26:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2022-07-19 12:26:48,831 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:48,833 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:48,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:49,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-19 12:26:49,060 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1363246470, now seen corresponding path program 1 times [2022-07-19 12:26:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:49,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095373169] [2022-07-19 12:26:49,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:49,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 2030 proven. 93 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2022-07-19 12:26:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:49,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095373169] [2022-07-19 12:26:49,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095373169] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:49,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523969449] [2022-07-19 12:26:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:49,360 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 12:26:49,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 12:26:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:49,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 12:26:49,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3199 backedges. 2123 proven. 0 refuted. 0 times theorem prover too weak. 1076 trivial. 0 not checked. [2022-07-19 12:26:50,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:50,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523969449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:50,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:50,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-19 12:26:50,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691417500] [2022-07-19 12:26:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:50,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:50,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:50,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:50,077 INFO L87 Difference]: Start difference. First operand 5522 states and 5793 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:50,467 INFO L93 Difference]: Finished difference Result 11042 states and 11584 transitions. [2022-07-19 12:26:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:50,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 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 959 [2022-07-19 12:26:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:50,474 INFO L225 Difference]: With dead ends: 11042 [2022-07-19 12:26:50,474 INFO L226 Difference]: Without dead ends: 5700 [2022-07-19 12:26:50,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 962 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 12:26:50,480 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:50,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:50,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-19 12:26:50,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5344. [2022-07-19 12:26:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0499719258843347) internal successors, (5610), 5343 states have internal predecessors, (5610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5610 transitions. [2022-07-19 12:26:50,545 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5610 transitions. Word has length 959 [2022-07-19 12:26:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:50,546 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5610 transitions. [2022-07-19 12:26:50,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5610 transitions. [2022-07-19 12:26:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-07-19 12:26:50,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:50,559 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:50,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:50,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:50,780 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:50,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1431125773, now seen corresponding path program 1 times [2022-07-19 12:26:50,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:50,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588925339] [2022-07-19 12:26:50,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:50,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:51,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3864 backedges. 1864 proven. 0 refuted. 0 times theorem prover too weak. 2000 trivial. 0 not checked. [2022-07-19 12:26:51,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:51,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588925339] [2022-07-19 12:26:51,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588925339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:51,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:51,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 12:26:51,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618223978] [2022-07-19 12:26:51,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:51,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 12:26:51,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:51,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 12:26:51,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:51,227 INFO L87 Difference]: Start difference. First operand 5344 states and 5610 transitions. Second operand has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:51,843 INFO L93 Difference]: Finished difference Result 10352 states and 10859 transitions. [2022-07-19 12:26:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 12:26:51,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 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 1036 [2022-07-19 12:26:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:51,848 INFO L225 Difference]: With dead ends: 10352 [2022-07-19 12:26:51,848 INFO L226 Difference]: Without dead ends: 4988 [2022-07-19 12:26:51,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:51,853 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 86 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:51,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 25 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 12:26:51,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-19 12:26:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2022-07-19 12:26:51,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.040304792460397) internal successors, (5188), 4987 states have internal predecessors, (5188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:51,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5188 transitions. [2022-07-19 12:26:51,909 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5188 transitions. Word has length 1036 [2022-07-19 12:26:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:51,910 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5188 transitions. [2022-07-19 12:26:51,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.857142857142854) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5188 transitions. [2022-07-19 12:26:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1069 [2022-07-19 12:26:51,922 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:51,923 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 12:26:51,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-19 12:26:51,923 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2022978308, now seen corresponding path program 1 times [2022-07-19 12:26:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:51,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770971805] [2022-07-19 12:26:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3740 backedges. 1271 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2022-07-19 12:26:52,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:52,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770971805] [2022-07-19 12:26:52,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770971805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:52,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 12:26:52,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 12:26:52,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511822840] [2022-07-19 12:26:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:52,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 12:26:52,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 12:26:52,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 12:26:52,321 INFO L87 Difference]: Start difference. First operand 4988 states and 5188 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:52,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:52,806 INFO L93 Difference]: Finished difference Result 9796 states and 10195 transitions. [2022-07-19 12:26:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 12:26:52,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 1068 [2022-07-19 12:26:52,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:52,811 INFO L225 Difference]: With dead ends: 9796 [2022-07-19 12:26:52,812 INFO L226 Difference]: Without dead ends: 4988 [2022-07-19 12:26:52,815 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 [2022-07-19 12:26:52,816 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 66 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:52,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 233 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 12:26:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-07-19 12:26:52,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2022-07-19 12:26:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0358933226388611) internal successors, (5166), 4987 states have internal predecessors, (5166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5166 transitions. [2022-07-19 12:26:52,880 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5166 transitions. Word has length 1068 [2022-07-19 12:26:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:52,881 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5166 transitions. [2022-07-19 12:26:52,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:52,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5166 transitions. [2022-07-19 12:26:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1117 [2022-07-19 12:26:52,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:52,895 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:52,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-19 12:26:52,895 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1857606004, now seen corresponding path program 1 times [2022-07-19 12:26:52,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:52,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727411490] [2022-07-19 12:26:52,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:52,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:53,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2906 proven. 72 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-07-19 12:26:53,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:53,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727411490] [2022-07-19 12:26:53,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727411490] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:53,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535488317] [2022-07-19 12:26:53,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:53,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:53,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:53,337 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 12:26:53,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 12:26:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:53,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 12:26:53,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:54,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3977 backedges. 2619 proven. 0 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2022-07-19 12:26:54,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 12:26:54,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535488317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 12:26:54,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 12:26:54,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-19 12:26:54,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951024041] [2022-07-19 12:26:54,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 12:26:54,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 12:26:54,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:54,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 12:26:54,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:54,041 INFO L87 Difference]: Start difference. First operand 4988 states and 5166 transitions. Second operand has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:26:54,642 INFO L93 Difference]: Finished difference Result 10686 states and 11077 transitions. [2022-07-19 12:26:54,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 12:26:54,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 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 1116 [2022-07-19 12:26:54,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:26:54,649 INFO L225 Difference]: With dead ends: 10686 [2022-07-19 12:26:54,649 INFO L226 Difference]: Without dead ends: 5878 [2022-07-19 12:26:54,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 1115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-19 12:26:54,653 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 72 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 12:26:54,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 37 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 12:26:54,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-07-19 12:26:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5344. [2022-07-19 12:26:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0344375818828373) internal successors, (5527), 5343 states have internal predecessors, (5527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5527 transitions. [2022-07-19 12:26:54,710 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5527 transitions. Word has length 1116 [2022-07-19 12:26:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:26:54,711 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5527 transitions. [2022-07-19 12:26:54,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 148.75) internal successors, (595), 4 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:26:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5527 transitions. [2022-07-19 12:26:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2022-07-19 12:26:54,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 12:26:54,731 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:26:54,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 12:26:54,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-19 12:26:54,932 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 12:26:54,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 12:26:54,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1570608280, now seen corresponding path program 1 times [2022-07-19 12:26:54,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 12:26:54,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041225378] [2022-07-19 12:26:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:54,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 12:26:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 4574 proven. 571 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-07-19 12:26:55,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 12:26:55,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041225378] [2022-07-19 12:26:55,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041225378] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 12:26:55,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456612272] [2022-07-19 12:26:55,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 12:26:55,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 12:26:55,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 12:26:55,688 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 12:26:55,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 12:26:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 12:26:56,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 2011 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 12:26:56,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 12:26:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 3686 proven. 498 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-19 12:26:57,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 12:26:58,120 INFO L134 CoverageAnalysis]: Checked inductivity of 8760 backedges. 3851 proven. 333 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-07-19 12:26:58,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456612272] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 12:26:58,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 12:26:58,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2022-07-19 12:26:58,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286584766] [2022-07-19 12:26:58,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 12:26:58,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 12:26:58,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 12:26:58,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 12:26:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-07-19 12:26:58,126 INFO L87 Difference]: Start difference. First operand 5344 states and 5527 transitions. Second operand has 15 states, 15 states have (on average 110.13333333333334) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:27:01,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 12:27:01,683 INFO L93 Difference]: Finished difference Result 16397 states and 17043 transitions. [2022-07-19 12:27:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-19 12:27:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 110.13333333333334) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 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 1653 [2022-07-19 12:27:01,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 12:27:01,685 INFO L225 Difference]: With dead ends: 16397 [2022-07-19 12:27:01,685 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 12:27:01,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3330 GetRequests, 3308 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=372, Unknown=0, NotChecked=0, Total=552 [2022-07-19 12:27:01,691 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1994 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4745 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 6763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 4745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1425 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 12:27:01,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 103 Invalid, 6763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 4745 Invalid, 0 Unknown, 1425 Unchecked, 3.3s Time] [2022-07-19 12:27:01,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 12:27:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 12:27:01,692 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) [2022-07-19 12:27:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 12:27:01,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1653 [2022-07-19 12:27:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 12:27:01,693 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 12:27:01,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 110.13333333333334) internal successors, (1652), 15 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 12:27:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 12:27:01,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 12:27:01,696 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 12:27:01,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 12:27:01,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-19 12:27:01,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 12:27:04,319 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-07-19 12:27:04,319 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-07-19 12:27:04,319 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-07-19 12:27:04,320 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-07-19 12:27:04,320 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-07-19 12:27:04,320 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,320 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-19 12:27:04,321 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,322 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,323 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-07-19 12:27:04,324 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-19 12:27:04,325 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,326 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-07-19 12:27:04,327 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-07-19 12:27:04,328 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-19 12:27:04,329 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,330 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-07-19 12:27:04,331 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 12:27:04,332 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,333 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-07-19 12:27:04,334 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-19 12:27:04,335 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,336 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-07-19 12:27:04,337 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-19 12:27:04,338 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,339 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-07-19 12:27:04,340 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-07-19 12:27:04,341 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-19 12:27:04,342 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,343 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse4 (* ~a12~0 9))) (let ((.cse3 (<= ~a15~0 8)) (.cse5 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse2 (<= 7 ~a21~0)) (.cse1 (<= (div .cse4 10) 546203)) (.cse6 (< 0 (+ ~a12~0 43)))) (or (and .cse0 .cse1 (<= 8 ~a21~0) (<= ~a21~0 8)) (and .cse0 (= 5 ~a15~0) (= ~a21~0 6)) (and (<= 9 ~a21~0) .cse0 .cse1 (< 80 ~a12~0)) (and (<= ~a12~0 80) .cse0 .cse2 .cse3) (and (<= (div (+ .cse4 858807) 10) 546203) .cse0 .cse5 .cse6) (and .cse3 .cse5 (<= (+ 49 ~a12~0) 0)) (and .cse0 .cse3 .cse1 .cse5 .cse6) (and .cse0 (<= ~a12~0 95433) (<= 10 ~a21~0)) (and .cse0 .cse2 .cse1 (<= ~a21~0 7) .cse6 (<= 8 ~a15~0))))) [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-07-19 12:27:04,344 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-19 12:27:04,345 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-07-19 12:27:04,346 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,347 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse4 (* ~a12~0 9))) (let ((.cse3 (<= ~a15~0 8)) (.cse5 (<= ~a21~0 6)) (.cse0 (= ~a24~0 1)) (.cse2 (<= 7 ~a21~0)) (.cse1 (<= (div .cse4 10) 546203)) (.cse6 (< 0 (+ ~a12~0 43)))) (or (and .cse0 .cse1 (<= 8 ~a21~0) (<= ~a21~0 8)) (and .cse0 (= 5 ~a15~0) (= ~a21~0 6)) (and (<= 9 ~a21~0) .cse0 .cse1 (< 80 ~a12~0)) (and (<= ~a12~0 80) .cse0 .cse2 .cse3) (and (<= (div (+ .cse4 858807) 10) 546203) .cse0 .cse5 .cse6) (and .cse3 .cse5 (<= (+ 49 ~a12~0) 0)) (and .cse0 .cse3 .cse1 .cse5 .cse6) (and .cse0 (<= ~a12~0 95433) (<= 10 ~a21~0)) (and .cse0 .cse2 .cse1 (<= ~a21~0 7) .cse6 (<= 8 ~a15~0))))) [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-19 12:27:04,348 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,349 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,350 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-07-19 12:27:04,350 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-07-19 12:27:04,350 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-19 12:27:04,350 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-19 12:27:04,350 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-19 12:27:04,353 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 12:27:04,355 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 12:27:04,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 12:27:04 BoogieIcfgContainer [2022-07-19 12:27:04,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 12:27:04,373 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 12:27:04,373 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 12:27:04,373 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 12:27:04,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 12:26:27" (3/4) ... [2022-07-19 12:27:04,376 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 12:27:04,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 12:27:04,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 12:27:04,398 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 12:27:04,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 12:27:04,487 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 12:27:04,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 12:27:04,489 INFO L158 Benchmark]: Toolchain (without parser) took 38842.33ms. Allocated memory was 107.0MB in the beginning and 838.9MB in the end (delta: 731.9MB). Free memory was 73.7MB in the beginning and 605.7MB in the end (delta: -532.0MB). Peak memory consumption was 199.0MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,489 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 12:27:04,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.53ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 61.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.31ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 61.2MB in the beginning and 100.0MB in the end (delta: -38.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,490 INFO L158 Benchmark]: Boogie Preprocessor took 129.99ms. Allocated memory is still 130.0MB. Free memory was 100.0MB in the beginning and 93.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,490 INFO L158 Benchmark]: RCFGBuilder took 1380.40ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 66.9MB in the end (delta: 26.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,492 INFO L158 Benchmark]: TraceAbstraction took 36518.01ms. Allocated memory was 130.0MB in the beginning and 838.9MB in the end (delta: 708.8MB). Free memory was 66.5MB in the beginning and 618.3MB in the end (delta: -551.8MB). Peak memory consumption was 516.1MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,493 INFO L158 Benchmark]: Witness Printer took 115.27ms. Allocated memory is still 838.9MB. Free memory was 618.3MB in the beginning and 605.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 12:27:04,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.53ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 61.2MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 149.31ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 61.2MB in the beginning and 100.0MB in the end (delta: -38.8MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 129.99ms. Allocated memory is still 130.0MB. Free memory was 100.0MB in the beginning and 93.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1380.40ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 66.9MB in the end (delta: 26.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 36518.01ms. Allocated memory was 130.0MB in the beginning and 838.9MB in the end (delta: 708.8MB). Free memory was 66.5MB in the beginning and 618.3MB in the end (delta: -551.8MB). Peak memory consumption was 516.1MB. Max. memory is 16.1GB. * Witness Printer took 115.27ms. Allocated memory is still 838.9MB. Free memory was 618.3MB in the beginning and 605.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.5s, OverallIterations: 23, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 15.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4361 SdHoareTripleChecker+Valid, 14.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4361 mSDsluCounter, 2836 SdHoareTripleChecker+Invalid, 11.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1425 IncrementalHoareTripleChecker+Unchecked, 212 mSDsCounter, 1773 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16285 IncrementalHoareTripleChecker+Invalid, 19483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1773 mSolverCounterUnsat, 2624 mSDtfsCounter, 16285 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10606 GetRequests, 10524 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5878occurred in iteration=15, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 5518 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 147 NumberOfFragments, 297 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3896 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12344 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 23979 NumberOfCodeBlocks, 23979 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 25597 ConstructedInterpolants, 55 QuantifiedInterpolants, 92616 SizeOfPredicates, 2 NumberOfNonLiveVariables, 11132 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 35 InterpolantComputations, 22 PerfectInterpolantSequences, 79400/81752 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((a24 == 1 && a12 * 9 / 10 <= 546203) && 8 <= a21) && a21 <= 8) || ((a24 == 1 && 5 == a15) && a21 == 6)) || (((9 <= a21 && a24 == 1) && a12 * 9 / 10 <= 546203) && 80 < a12)) || (((a12 <= 80 && a24 == 1) && 7 <= a21) && a15 <= 8)) || ((((a12 * 9 + 858807) / 10 <= 546203 && a24 == 1) && a21 <= 6) && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a12 * 9 / 10 <= 546203) && a21 <= 6) && 0 < a12 + 43)) || ((a24 == 1 && a12 <= 95433) && 10 <= a21)) || (((((a24 == 1 && 7 <= a21) && a12 * 9 / 10 <= 546203) && a21 <= 7) && 0 < a12 + 43) && 8 <= a15) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((a24 == 1 && a12 * 9 / 10 <= 546203) && 8 <= a21) && a21 <= 8) || ((a24 == 1 && 5 == a15) && a21 == 6)) || (((9 <= a21 && a24 == 1) && a12 * 9 / 10 <= 546203) && 80 < a12)) || (((a12 <= 80 && a24 == 1) && 7 <= a21) && a15 <= 8)) || ((((a12 * 9 + 858807) / 10 <= 546203 && a24 == 1) && a21 <= 6) && 0 < a12 + 43)) || ((a15 <= 8 && a21 <= 6) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a12 * 9 / 10 <= 546203) && a21 <= 6) && 0 < a12 + 43)) || ((a24 == 1 && a12 <= 95433) && 10 <= a21)) || (((((a24 == 1 && 7 <= a21) && a12 * 9 / 10 <= 546203) && a21 <= 7) && 0 < a12 + 43) && 8 <= a15) RESULT: Ultimate proved your program to be correct! [2022-07-19 12:27:04,525 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