./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label10.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 68bba3302e6a94fc1a2bd97d9ea3c006d28b9ba843bd296b9f627a896167b8ce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 09:12:55,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 09:12:55,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 09:12:55,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 09:12:55,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 09:12:55,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 09:12:55,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 09:12:55,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 09:12:55,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 09:12:55,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 09:12:55,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 09:12:55,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 09:12:55,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 09:12:55,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 09:12:55,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 09:12:55,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 09:12:55,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 09:12:55,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 09:12:55,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 09:12:55,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 09:12:55,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 09:12:55,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 09:12:55,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 09:12:55,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 09:12:55,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 09:12:55,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 09:12:55,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 09:12:55,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 09:12:55,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 09:12:55,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 09:12:55,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 09:12:55,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 09:12:55,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 09:12:55,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 09:12:55,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 09:12:55,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 09:12:55,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 09:12:55,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 09:12:55,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 09:12:55,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 09:12:55,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 09:12:55,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 09:12:55,416 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 09:12:55,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 09:12:55,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 09:12:55,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 09:12:55,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 09:12:55,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 09:12:55,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 09:12:55,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 09:12:55,420 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 09:12:55,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 09:12:55,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 09:12:55,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 09:12:55,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 09:12:55,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 09:12:55,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 09:12:55,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 09:12:55,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 09:12:55,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 09:12:55,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 09:12:55,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 09:12:55,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 09:12:55,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 09:12:55,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 09:12:55,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 09:12:55,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68bba3302e6a94fc1a2bd97d9ea3c006d28b9ba843bd296b9f627a896167b8ce [2021-12-22 09:12:55,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 09:12:55,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 09:12:55,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 09:12:55,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 09:12:55,641 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 09:12:55,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label10.c [2021-12-22 09:12:55,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd53cbe44/3b0292a122a542a78f31ca0b3b3ec848/FLAG0b5d075a8 [2021-12-22 09:12:56,145 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 09:12:56,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label10.c [2021-12-22 09:12:56,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd53cbe44/3b0292a122a542a78f31ca0b3b3ec848/FLAG0b5d075a8 [2021-12-22 09:12:56,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd53cbe44/3b0292a122a542a78f31ca0b3b3ec848 [2021-12-22 09:12:56,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 09:12:56,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 09:12:56,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 09:12:56,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 09:12:56,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 09:12:56,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:56,489 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133eeb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56, skipping insertion in model container [2021-12-22 09:12:56,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:56,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 09:12:56,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 09:12:56,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label10.c[3268,3281] [2021-12-22 09:12:56,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 09:12:56,852 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 09:12:56,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label10.c[3268,3281] [2021-12-22 09:12:56,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 09:12:56,958 INFO L208 MainTranslator]: Completed translation [2021-12-22 09:12:56,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56 WrapperNode [2021-12-22 09:12:56,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 09:12:56,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 09:12:56,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 09:12:56,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 09:12:56,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:56,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,064 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-22 09:12:57,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 09:12:57,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 09:12:57,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 09:12:57,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 09:12:57,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 09:12:57,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 09:12:57,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 09:12:57,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 09:12:57,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (1/1) ... [2021-12-22 09:12:57,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 09:12:57,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:12:57,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 09:12:57,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 09:12:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 09:12:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 09:12:57,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 09:12:57,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 09:12:57,259 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 09:12:57,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 09:12:58,323 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 09:12:58,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 09:12:58,334 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 09:12:58,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:12:58 BoogieIcfgContainer [2021-12-22 09:12:58,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 09:12:58,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 09:12:58,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 09:12:58,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 09:12:58,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:12:56" (1/3) ... [2021-12-22 09:12:58,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc27d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:12:58, skipping insertion in model container [2021-12-22 09:12:58,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:12:56" (2/3) ... [2021-12-22 09:12:58,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc27d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:12:58, skipping insertion in model container [2021-12-22 09:12:58,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:12:58" (3/3) ... [2021-12-22 09:12:58,352 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label10.c [2021-12-22 09:12:58,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 09:12:58,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 09:12:58,399 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 09:12:58,407 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 09:12:58,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 09:12:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:12:58,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-22 09:12:58,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:12:58,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:12:58,436 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:12:58,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:12:58,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2021-12-22 09:12:58,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:12:58,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747222284] [2021-12-22 09:12:58,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:12:58,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:12:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:12:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:12:58,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:12:58,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747222284] [2021-12-22 09:12:58,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747222284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:12:58,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:12:58,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:12:58,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635062063] [2021-12-22 09:12:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:12:58,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:12:58,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:12:58,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:12:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:12:58,604 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:12:59,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:12:59,458 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2021-12-22 09:12:59,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:12:59,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-12-22 09:12:59,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:12:59,469 INFO L225 Difference]: With dead ends: 776 [2021-12-22 09:12:59,469 INFO L226 Difference]: Without dead ends: 413 [2021-12-22 09:12:59,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:12:59,474 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 205 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 09:12:59,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 196 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 09:12:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-12-22 09:12:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2021-12-22 09:12:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.4585365853658536) internal successors, (598), 410 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:12:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 598 transitions. [2021-12-22 09:12:59,518 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 598 transitions. Word has length 22 [2021-12-22 09:12:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:12:59,519 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 598 transitions. [2021-12-22 09:12:59,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:12:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 598 transitions. [2021-12-22 09:12:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-22 09:12:59,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:12:59,521 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 09:12:59,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 09:12:59,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:12:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:12:59,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1871415266, now seen corresponding path program 1 times [2021-12-22 09:12:59,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:12:59,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94395896] [2021-12-22 09:12:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:12:59,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:12:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:12:59,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:12:59,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:12:59,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94395896] [2021-12-22 09:12:59,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94395896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:12:59,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:12:59,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:12:59,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113070157] [2021-12-22 09:12:59,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:12:59,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:12:59,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:12:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:12:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:12:59,667 INFO L87 Difference]: Start difference. First operand 411 states and 598 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:00,253 INFO L93 Difference]: Finished difference Result 1209 states and 1765 transitions. [2021-12-22 09:13:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:00,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-12-22 09:13:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:00,258 INFO L225 Difference]: With dead ends: 1209 [2021-12-22 09:13:00,258 INFO L226 Difference]: Without dead ends: 800 [2021-12-22 09:13:00,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:00,260 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:00,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 120 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 09:13:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-12-22 09:13:00,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 787. [2021-12-22 09:13:00,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 786 states have (on average 1.3854961832061068) internal successors, (1089), 786 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1089 transitions. [2021-12-22 09:13:00,285 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1089 transitions. Word has length 90 [2021-12-22 09:13:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:00,286 INFO L470 AbstractCegarLoop]: Abstraction has 787 states and 1089 transitions. [2021-12-22 09:13:00,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1089 transitions. [2021-12-22 09:13:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-22 09:13:00,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:00,287 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-22 09:13:00,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 09:13:00,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:00,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:00,288 INFO L85 PathProgramCache]: Analyzing trace with hash 562007972, now seen corresponding path program 1 times [2021-12-22 09:13:00,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:00,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608252994] [2021-12-22 09:13:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:00,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:00,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:00,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608252994] [2021-12-22 09:13:00,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608252994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:00,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:00,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:13:00,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006719717] [2021-12-22 09:13:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:00,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:00,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:00,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:00,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:00,369 INFO L87 Difference]: Start difference. First operand 787 states and 1089 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:00,909 INFO L93 Difference]: Finished difference Result 1942 states and 2631 transitions. [2021-12-22 09:13:00,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:00,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-22 09:13:00,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:00,913 INFO L225 Difference]: With dead ends: 1942 [2021-12-22 09:13:00,913 INFO L226 Difference]: Without dead ends: 1157 [2021-12-22 09:13:00,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:00,915 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:00,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:00,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2021-12-22 09:13:00,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1156. [2021-12-22 09:13:00,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.277922077922078) internal successors, (1476), 1155 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1476 transitions. [2021-12-22 09:13:00,947 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1476 transitions. Word has length 91 [2021-12-22 09:13:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:00,947 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1476 transitions. [2021-12-22 09:13:00,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1476 transitions. [2021-12-22 09:13:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-22 09:13:00,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:00,949 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:00,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 09:13:00,950 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash -945177690, now seen corresponding path program 1 times [2021-12-22 09:13:00,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:00,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398049742] [2021-12-22 09:13:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:00,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:01,049 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-22 09:13:01,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:01,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398049742] [2021-12-22 09:13:01,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398049742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:01,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:01,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 09:13:01,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54207871] [2021-12-22 09:13:01,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:01,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:01,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:01,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:01,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:01,055 INFO L87 Difference]: Start difference. First operand 1156 states and 1476 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:01,625 INFO L93 Difference]: Finished difference Result 2502 states and 3339 transitions. [2021-12-22 09:13:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:01,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-12-22 09:13:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:01,629 INFO L225 Difference]: With dead ends: 2502 [2021-12-22 09:13:01,629 INFO L226 Difference]: Without dead ends: 1532 [2021-12-22 09:13:01,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:01,631 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 108 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:01,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 156 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:01,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2021-12-22 09:13:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2021-12-22 09:13:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.2619203135205748) internal successors, (1932), 1531 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:01,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1932 transitions. [2021-12-22 09:13:01,651 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1932 transitions. Word has length 134 [2021-12-22 09:13:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:01,652 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 1932 transitions. [2021-12-22 09:13:01,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1932 transitions. [2021-12-22 09:13:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-22 09:13:01,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:01,653 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:01,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 09:13:01,654 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:01,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2122268031, now seen corresponding path program 1 times [2021-12-22 09:13:01,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:01,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461853113] [2021-12-22 09:13:01,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:01,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:01,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:01,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461853113] [2021-12-22 09:13:01,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461853113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:01,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:01,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:01,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623820831] [2021-12-22 09:13:01,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:01,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:01,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:01,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:01,732 INFO L87 Difference]: Start difference. First operand 1532 states and 1932 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:02,295 INFO L93 Difference]: Finished difference Result 3644 states and 4738 transitions. [2021-12-22 09:13:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:02,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2021-12-22 09:13:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:02,302 INFO L225 Difference]: With dead ends: 3644 [2021-12-22 09:13:02,303 INFO L226 Difference]: Without dead ends: 2298 [2021-12-22 09:13:02,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:02,310 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 213 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:02,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 322 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:02,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2298 states. [2021-12-22 09:13:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2298 to 2295. [2021-12-22 09:13:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2295 states, 2294 states have (on average 1.2654751525719268) internal successors, (2903), 2294 states have internal predecessors, (2903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2295 states to 2295 states and 2903 transitions. [2021-12-22 09:13:02,345 INFO L78 Accepts]: Start accepts. Automaton has 2295 states and 2903 transitions. Word has length 149 [2021-12-22 09:13:02,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:02,346 INFO L470 AbstractCegarLoop]: Abstraction has 2295 states and 2903 transitions. [2021-12-22 09:13:02,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:02,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2295 states and 2903 transitions. [2021-12-22 09:13:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-12-22 09:13:02,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:02,351 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:02,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 09:13:02,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:02,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:02,353 INFO L85 PathProgramCache]: Analyzing trace with hash -259742338, now seen corresponding path program 1 times [2021-12-22 09:13:02,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:02,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264691806] [2021-12-22 09:13:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:02,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:02,442 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:02,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:02,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264691806] [2021-12-22 09:13:02,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264691806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:02,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:02,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:02,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419767220] [2021-12-22 09:13:02,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:02,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:02,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:02,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:02,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:02,444 INFO L87 Difference]: Start difference. First operand 2295 states and 2903 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:02,996 INFO L93 Difference]: Finished difference Result 5528 states and 7095 transitions. [2021-12-22 09:13:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2021-12-22 09:13:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:03,005 INFO L225 Difference]: With dead ends: 5528 [2021-12-22 09:13:03,006 INFO L226 Difference]: Without dead ends: 3419 [2021-12-22 09:13:03,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:03,009 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 136 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:03,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 340 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:03,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-12-22 09:13:03,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 3218. [2021-12-22 09:13:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 1.2377991917935964) internal successors, (3982), 3217 states have internal predecessors, (3982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:03,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 3982 transitions. [2021-12-22 09:13:03,052 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 3982 transitions. Word has length 202 [2021-12-22 09:13:03,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:03,052 INFO L470 AbstractCegarLoop]: Abstraction has 3218 states and 3982 transitions. [2021-12-22 09:13:03,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:03,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 3982 transitions. [2021-12-22 09:13:03,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-12-22 09:13:03,054 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:03,054 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:03,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 09:13:03,055 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:03,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1079368312, now seen corresponding path program 1 times [2021-12-22 09:13:03,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:03,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861122774] [2021-12-22 09:13:03,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:03,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-22 09:13:03,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:03,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861122774] [2021-12-22 09:13:03,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861122774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:03,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:03,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:03,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109915017] [2021-12-22 09:13:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:03,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:03,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:03,126 INFO L87 Difference]: Start difference. First operand 3218 states and 3982 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:03,665 INFO L93 Difference]: Finished difference Result 7371 states and 9143 transitions. [2021-12-22 09:13:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:03,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2021-12-22 09:13:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:03,676 INFO L225 Difference]: With dead ends: 7371 [2021-12-22 09:13:03,676 INFO L226 Difference]: Without dead ends: 4155 [2021-12-22 09:13:03,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:03,680 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 180 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:03,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 345 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2021-12-22 09:13:03,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 4138. [2021-12-22 09:13:03,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4138 states, 4137 states have (on average 1.2211747643219724) internal successors, (5052), 4137 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5052 transitions. [2021-12-22 09:13:03,737 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5052 transitions. Word has length 203 [2021-12-22 09:13:03,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:03,738 INFO L470 AbstractCegarLoop]: Abstraction has 4138 states and 5052 transitions. [2021-12-22 09:13:03,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:03,738 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5052 transitions. [2021-12-22 09:13:03,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-12-22 09:13:03,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:03,740 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:03,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 09:13:03,740 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:03,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1976650713, now seen corresponding path program 1 times [2021-12-22 09:13:03,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:03,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745462060] [2021-12-22 09:13:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:03,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-22 09:13:03,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:03,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745462060] [2021-12-22 09:13:03,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745462060] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:03,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:03,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:03,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407777930] [2021-12-22 09:13:03,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:03,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:03,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:03,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:03,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:03,805 INFO L87 Difference]: Start difference. First operand 4138 states and 5052 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:04,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:04,401 INFO L93 Difference]: Finished difference Result 9207 states and 11353 transitions. [2021-12-22 09:13:04,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:04,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2021-12-22 09:13:04,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:04,416 INFO L225 Difference]: With dead ends: 9207 [2021-12-22 09:13:04,416 INFO L226 Difference]: Without dead ends: 5071 [2021-12-22 09:13:04,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:04,420 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 175 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:04,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 379 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-22 09:13:04,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5071 states. [2021-12-22 09:13:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5071 to 4874. [2021-12-22 09:13:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4873 states have (on average 1.2087010055407346) internal successors, (5890), 4873 states have internal predecessors, (5890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 5890 transitions. [2021-12-22 09:13:04,481 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 5890 transitions. Word has length 204 [2021-12-22 09:13:04,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:04,483 INFO L470 AbstractCegarLoop]: Abstraction has 4874 states and 5890 transitions. [2021-12-22 09:13:04,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 5890 transitions. [2021-12-22 09:13:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-22 09:13:04,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:04,485 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:04,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 09:13:04,486 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:04,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1214132377, now seen corresponding path program 1 times [2021-12-22 09:13:04,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:04,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765380407] [2021-12-22 09:13:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:04,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:04,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:04,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765380407] [2021-12-22 09:13:04,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765380407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:04,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:04,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 09:13:04,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041374532] [2021-12-22 09:13:04,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:04,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:13:04,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:04,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:13:04,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:04,632 INFO L87 Difference]: Start difference. First operand 4874 states and 5890 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:05,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:05,668 INFO L93 Difference]: Finished difference Result 15870 states and 19335 transitions. [2021-12-22 09:13:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:13:05,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 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 224 [2021-12-22 09:13:05,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:05,705 INFO L225 Difference]: With dead ends: 15870 [2021-12-22 09:13:05,705 INFO L226 Difference]: Without dead ends: 10998 [2021-12-22 09:13:05,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:05,713 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 310 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:05,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 207 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 09:13:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2021-12-22 09:13:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 8953. [2021-12-22 09:13:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8952 states have (on average 1.1907953529937445) internal successors, (10660), 8952 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:05,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 10660 transitions. [2021-12-22 09:13:05,853 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 10660 transitions. Word has length 224 [2021-12-22 09:13:05,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:05,854 INFO L470 AbstractCegarLoop]: Abstraction has 8953 states and 10660 transitions. [2021-12-22 09:13:05,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:05,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 10660 transitions. [2021-12-22 09:13:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-22 09:13:05,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:05,857 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:05,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 09:13:05,857 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -205904018, now seen corresponding path program 1 times [2021-12-22 09:13:05,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:05,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661947120] [2021-12-22 09:13:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:05,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:05,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:05,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661947120] [2021-12-22 09:13:05,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661947120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:05,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:05,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 09:13:05,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044389292] [2021-12-22 09:13:05,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:05,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:13:05,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:05,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:13:05,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:05,945 INFO L87 Difference]: Start difference. First operand 8953 states and 10660 transitions. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:07,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:07,163 INFO L93 Difference]: Finished difference Result 22715 states and 27384 transitions. [2021-12-22 09:13:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:13:07,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 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 234 [2021-12-22 09:13:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:07,191 INFO L225 Difference]: With dead ends: 22715 [2021-12-22 09:13:07,191 INFO L226 Difference]: Without dead ends: 13764 [2021-12-22 09:13:07,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:07,203 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 325 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:07,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 122 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 09:13:07,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13764 states. [2021-12-22 09:13:07,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13764 to 13378. [2021-12-22 09:13:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 13377 states have (on average 1.1921955595424982) internal successors, (15948), 13377 states have internal predecessors, (15948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 15948 transitions. [2021-12-22 09:13:07,410 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 15948 transitions. Word has length 234 [2021-12-22 09:13:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:07,410 INFO L470 AbstractCegarLoop]: Abstraction has 13378 states and 15948 transitions. [2021-12-22 09:13:07,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 15948 transitions. [2021-12-22 09:13:07,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-22 09:13:07,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:07,414 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:07,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 09:13:07,414 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:07,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:07,415 INFO L85 PathProgramCache]: Analyzing trace with hash 947970210, now seen corresponding path program 1 times [2021-12-22 09:13:07,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:07,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969395493] [2021-12-22 09:13:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:07,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:07,573 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 101 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:07,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:07,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969395493] [2021-12-22 09:13:07,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969395493] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:13:07,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665897986] [2021-12-22 09:13:07,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:07,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:13:07,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:13:07,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 09:13:07,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 09:13:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:07,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-22 09:13:07,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:13:08,801 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 74 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:08,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 09:13:09,885 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 74 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:09,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665897986] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 09:13:09,886 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 09:13:09,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2021-12-22 09:13:09,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453266805] [2021-12-22 09:13:09,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 09:13:09,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 09:13:09,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:09,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 09:13:09,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-12-22 09:13:09,888 INFO L87 Difference]: Start difference. First operand 13378 states and 15948 transitions. Second operand has 11 states, 11 states have (on average 34.36363636363637) internal successors, (378), 10 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:12,734 INFO L93 Difference]: Finished difference Result 28562 states and 34300 transitions. [2021-12-22 09:13:12,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 09:13:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 34.36363636363637) internal successors, (378), 10 states have internal predecessors, (378), 0 states have call successors, (0), 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 236 [2021-12-22 09:13:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:12,756 INFO L225 Difference]: With dead ends: 28562 [2021-12-22 09:13:12,757 INFO L226 Difference]: Without dead ends: 15174 [2021-12-22 09:13:12,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 464 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2021-12-22 09:13:12,771 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 1187 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4901 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 5451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 4901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:12,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 165 Invalid, 5451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 4901 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-22 09:13:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15174 states. [2021-12-22 09:13:12,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15174 to 13530. [2021-12-22 09:13:12,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 1.1665311552960307) internal successors, (15782), 13529 states have internal predecessors, (15782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 15782 transitions. [2021-12-22 09:13:12,964 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 15782 transitions. Word has length 236 [2021-12-22 09:13:12,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:12,964 INFO L470 AbstractCegarLoop]: Abstraction has 13530 states and 15782 transitions. [2021-12-22 09:13:12,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 34.36363636363637) internal successors, (378), 10 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:12,965 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 15782 transitions. [2021-12-22 09:13:12,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-22 09:13:12,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:12,969 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:12,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 09:13:13,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-22 09:13:13,180 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:13,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:13,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1148903582, now seen corresponding path program 1 times [2021-12-22 09:13:13,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:13,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628700942] [2021-12-22 09:13:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:13,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 95 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:13,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:13,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628700942] [2021-12-22 09:13:13,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628700942] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:13:13,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381316257] [2021-12-22 09:13:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:13,305 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:13:13,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:13:13,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 09:13:13,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 09:13:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:13,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 09:13:13,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:13:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:13,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 09:13:13,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381316257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:13,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 09:13:13,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-22 09:13:13,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480310593] [2021-12-22 09:13:13,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:13,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:13:13,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:13:13,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 09:13:13,892 INFO L87 Difference]: Start difference. First operand 13530 states and 15782 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:14,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:14,660 INFO L93 Difference]: Finished difference Result 27246 states and 31762 transitions. [2021-12-22 09:13:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:13:14,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 255 [2021-12-22 09:13:14,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:14,680 INFO L225 Difference]: With dead ends: 27246 [2021-12-22 09:13:14,680 INFO L226 Difference]: Without dead ends: 13718 [2021-12-22 09:13:14,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-22 09:13:14,690 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 166 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:14,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 164 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-22 09:13:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13718 states. [2021-12-22 09:13:14,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13718 to 13530. [2021-12-22 09:13:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13530 states, 13529 states have (on average 1.1652006800206962) internal successors, (15764), 13529 states have internal predecessors, (15764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13530 states to 13530 states and 15764 transitions. [2021-12-22 09:13:14,848 INFO L78 Accepts]: Start accepts. Automaton has 13530 states and 15764 transitions. Word has length 255 [2021-12-22 09:13:14,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:14,848 INFO L470 AbstractCegarLoop]: Abstraction has 13530 states and 15764 transitions. [2021-12-22 09:13:14,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:14,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13530 states and 15764 transitions. [2021-12-22 09:13:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-12-22 09:13:14,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:14,854 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-22 09:13:14,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 09:13:15,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-22 09:13:15,067 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:15,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:15,068 INFO L85 PathProgramCache]: Analyzing trace with hash -632041158, now seen corresponding path program 1 times [2021-12-22 09:13:15,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:15,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204410526] [2021-12-22 09:13:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:15,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-22 09:13:15,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:15,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204410526] [2021-12-22 09:13:15,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204410526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:15,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:15,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:15,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792937985] [2021-12-22 09:13:15,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:15,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:15,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:15,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:15,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:15,150 INFO L87 Difference]: Start difference. First operand 13530 states and 15764 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:15,704 INFO L93 Difference]: Finished difference Result 25732 states and 30045 transitions. [2021-12-22 09:13:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:15,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 271 [2021-12-22 09:13:15,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:15,717 INFO L225 Difference]: With dead ends: 25732 [2021-12-22 09:13:15,717 INFO L226 Difference]: Without dead ends: 12204 [2021-12-22 09:13:15,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:15,726 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 168 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:15,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 132 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:15,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12204 states. [2021-12-22 09:13:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12204 to 10913. [2021-12-22 09:13:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10913 states, 10912 states have (on average 1.1198680351906158) internal successors, (12220), 10912 states have internal predecessors, (12220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:15,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10913 states to 10913 states and 12220 transitions. [2021-12-22 09:13:15,840 INFO L78 Accepts]: Start accepts. Automaton has 10913 states and 12220 transitions. Word has length 271 [2021-12-22 09:13:15,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:15,840 INFO L470 AbstractCegarLoop]: Abstraction has 10913 states and 12220 transitions. [2021-12-22 09:13:15,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 10913 states and 12220 transitions. [2021-12-22 09:13:15,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-12-22 09:13:15,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:15,845 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:15,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-22 09:13:15,845 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:15,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:15,845 INFO L85 PathProgramCache]: Analyzing trace with hash 323334857, now seen corresponding path program 1 times [2021-12-22 09:13:15,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:15,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197384949] [2021-12-22 09:13:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:15,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:15,949 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 216 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 09:13:15,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:15,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197384949] [2021-12-22 09:13:15,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197384949] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 09:13:15,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044667115] [2021-12-22 09:13:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:15,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:13:15,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 09:13:15,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 09:13:15,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 09:13:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:16,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-22 09:13:16,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 09:13:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-22 09:13:16,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 09:13:16,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044667115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:16,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 09:13:16,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-12-22 09:13:16,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941441667] [2021-12-22 09:13:16,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:16,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:16,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:16,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:16,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 09:13:16,594 INFO L87 Difference]: Start difference. First operand 10913 states and 12220 transitions. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:17,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:17,061 INFO L93 Difference]: Finished difference Result 22196 states and 24830 transitions. [2021-12-22 09:13:17,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 293 [2021-12-22 09:13:17,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:17,072 INFO L225 Difference]: With dead ends: 22196 [2021-12-22 09:13:17,072 INFO L226 Difference]: Without dead ends: 11101 [2021-12-22 09:13:17,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-22 09:13:17,079 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 98 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:17,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 361 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 09:13:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2021-12-22 09:13:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10729. [2021-12-22 09:13:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10729 states, 10728 states have (on average 1.1189410887397464) internal successors, (12004), 10728 states have internal predecessors, (12004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10729 states to 10729 states and 12004 transitions. [2021-12-22 09:13:17,171 INFO L78 Accepts]: Start accepts. Automaton has 10729 states and 12004 transitions. Word has length 293 [2021-12-22 09:13:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:17,172 INFO L470 AbstractCegarLoop]: Abstraction has 10729 states and 12004 transitions. [2021-12-22 09:13:17,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:17,172 INFO L276 IsEmpty]: Start isEmpty. Operand 10729 states and 12004 transitions. [2021-12-22 09:13:17,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-12-22 09:13:17,176 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:17,176 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:17,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-22 09:13:17,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 09:13:17,393 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:17,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1215708833, now seen corresponding path program 1 times [2021-12-22 09:13:17,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:17,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303785649] [2021-12-22 09:13:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:17,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-22 09:13:17,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:17,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303785649] [2021-12-22 09:13:17,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303785649] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:17,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:17,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 09:13:17,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784299019] [2021-12-22 09:13:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:17,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:13:17,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:17,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:13:17,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:17,491 INFO L87 Difference]: Start difference. First operand 10729 states and 12004 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:18,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:18,437 INFO L93 Difference]: Finished difference Result 26254 states and 29361 transitions. [2021-12-22 09:13:18,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:13:18,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 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 309 [2021-12-22 09:13:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:18,454 INFO L225 Difference]: With dead ends: 26254 [2021-12-22 09:13:18,455 INFO L226 Difference]: Without dead ends: 15343 [2021-12-22 09:13:18,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:18,462 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 341 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:18,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 70 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 09:13:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15343 states. [2021-12-22 09:13:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15343 to 14231. [2021-12-22 09:13:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14231 states, 14230 states have (on average 1.1139142656359804) internal successors, (15851), 14230 states have internal predecessors, (15851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14231 states to 14231 states and 15851 transitions. [2021-12-22 09:13:18,654 INFO L78 Accepts]: Start accepts. Automaton has 14231 states and 15851 transitions. Word has length 309 [2021-12-22 09:13:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:18,655 INFO L470 AbstractCegarLoop]: Abstraction has 14231 states and 15851 transitions. [2021-12-22 09:13:18,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 14231 states and 15851 transitions. [2021-12-22 09:13:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-12-22 09:13:18,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:18,666 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:13:18,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-22 09:13:18,666 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:18,667 INFO L85 PathProgramCache]: Analyzing trace with hash 384501595, now seen corresponding path program 1 times [2021-12-22 09:13:18,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:18,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013780173] [2021-12-22 09:13:18,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:18,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-22 09:13:18,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:18,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013780173] [2021-12-22 09:13:18,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013780173] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:18,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:18,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:18,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957101793] [2021-12-22 09:13:18,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:18,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:18,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:18,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:18,771 INFO L87 Difference]: Start difference. First operand 14231 states and 15851 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:19,351 INFO L93 Difference]: Finished difference Result 30493 states and 33970 transitions. [2021-12-22 09:13:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:19,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 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 320 [2021-12-22 09:13:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:19,365 INFO L225 Difference]: With dead ends: 30493 [2021-12-22 09:13:19,365 INFO L226 Difference]: Without dead ends: 16264 [2021-12-22 09:13:19,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:19,374 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 195 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:19,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 119 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:19,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2021-12-22 09:13:19,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 14043. [2021-12-22 09:13:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14043 states, 14042 states have (on average 1.1135165930779092) internal successors, (15636), 14042 states have internal predecessors, (15636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14043 states to 14043 states and 15636 transitions. [2021-12-22 09:13:19,536 INFO L78 Accepts]: Start accepts. Automaton has 14043 states and 15636 transitions. Word has length 320 [2021-12-22 09:13:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:19,536 INFO L470 AbstractCegarLoop]: Abstraction has 14043 states and 15636 transitions. [2021-12-22 09:13:19,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 14043 states and 15636 transitions. [2021-12-22 09:13:19,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-22 09:13:19,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:19,542 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:13:19,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-22 09:13:19,542 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1637860003, now seen corresponding path program 1 times [2021-12-22 09:13:19,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:19,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623895023] [2021-12-22 09:13:19,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:19,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2021-12-22 09:13:19,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:19,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623895023] [2021-12-22 09:13:19,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623895023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:19,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:19,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:19,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167556818] [2021-12-22 09:13:19,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:19,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:19,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:19,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:19,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:19,615 INFO L87 Difference]: Start difference. First operand 14043 states and 15636 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:20,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:20,164 INFO L93 Difference]: Finished difference Result 29188 states and 32492 transitions. [2021-12-22 09:13:20,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:20,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 327 [2021-12-22 09:13:20,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:20,178 INFO L225 Difference]: With dead ends: 29188 [2021-12-22 09:13:20,178 INFO L226 Difference]: Without dead ends: 15147 [2021-12-22 09:13:20,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:20,187 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 190 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:20,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 110 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15147 states. [2021-12-22 09:13:20,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15147 to 13117. [2021-12-22 09:13:20,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13117 states, 13116 states have (on average 1.112458066483684) internal successors, (14591), 13116 states have internal predecessors, (14591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13117 states to 13117 states and 14591 transitions. [2021-12-22 09:13:20,365 INFO L78 Accepts]: Start accepts. Automaton has 13117 states and 14591 transitions. Word has length 327 [2021-12-22 09:13:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:20,365 INFO L470 AbstractCegarLoop]: Abstraction has 13117 states and 14591 transitions. [2021-12-22 09:13:20,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:20,366 INFO L276 IsEmpty]: Start isEmpty. Operand 13117 states and 14591 transitions. [2021-12-22 09:13:20,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-12-22 09:13:20,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:20,373 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:13:20,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-22 09:13:20,373 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:20,374 INFO L85 PathProgramCache]: Analyzing trace with hash -694285539, now seen corresponding path program 1 times [2021-12-22 09:13:20,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:20,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996473728] [2021-12-22 09:13:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:20,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-22 09:13:20,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:20,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996473728] [2021-12-22 09:13:20,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996473728] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:20,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:20,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:20,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385323784] [2021-12-22 09:13:20,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:20,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 09:13:20,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 09:13:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:20,488 INFO L87 Difference]: Start difference. First operand 13117 states and 14591 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:21,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:21,450 INFO L93 Difference]: Finished difference Result 34708 states and 38542 transitions. [2021-12-22 09:13:21,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 09:13:21,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 349 [2021-12-22 09:13:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:21,468 INFO L225 Difference]: With dead ends: 34708 [2021-12-22 09:13:21,468 INFO L226 Difference]: Without dead ends: 21225 [2021-12-22 09:13:21,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-22 09:13:21,474 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 200 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:21,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 57 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-22 09:13:21,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21225 states. [2021-12-22 09:13:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21225 to 21037. [2021-12-22 09:13:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21037 states, 21036 states have (on average 1.1072447233314318) internal successors, (23292), 21036 states have internal predecessors, (23292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21037 states to 21037 states and 23292 transitions. [2021-12-22 09:13:21,655 INFO L78 Accepts]: Start accepts. Automaton has 21037 states and 23292 transitions. Word has length 349 [2021-12-22 09:13:21,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:21,655 INFO L470 AbstractCegarLoop]: Abstraction has 21037 states and 23292 transitions. [2021-12-22 09:13:21,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 21037 states and 23292 transitions. [2021-12-22 09:13:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-12-22 09:13:21,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:21,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:21,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-22 09:13:21,665 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1678028432, now seen corresponding path program 1 times [2021-12-22 09:13:21,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:21,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988600109] [2021-12-22 09:13:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:21,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2021-12-22 09:13:21,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:21,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988600109] [2021-12-22 09:13:21,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988600109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:21,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:21,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:21,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009006117] [2021-12-22 09:13:21,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:21,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:21,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:21,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:21,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:21,808 INFO L87 Difference]: Start difference. First operand 21037 states and 23292 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:22,401 INFO L93 Difference]: Finished difference Result 42253 states and 46777 transitions. [2021-12-22 09:13:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:22,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 385 [2021-12-22 09:13:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:22,422 INFO L225 Difference]: With dead ends: 42253 [2021-12-22 09:13:22,422 INFO L226 Difference]: Without dead ends: 24164 [2021-12-22 09:13:22,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:22,434 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 197 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:22,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 128 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:22,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24164 states. [2021-12-22 09:13:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24164 to 15696. [2021-12-22 09:13:22,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15696 states, 15695 states have (on average 1.1086333227142402) internal successors, (17400), 15695 states have internal predecessors, (17400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15696 states to 15696 states and 17400 transitions. [2021-12-22 09:13:22,639 INFO L78 Accepts]: Start accepts. Automaton has 15696 states and 17400 transitions. Word has length 385 [2021-12-22 09:13:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:22,640 INFO L470 AbstractCegarLoop]: Abstraction has 15696 states and 17400 transitions. [2021-12-22 09:13:22,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 15696 states and 17400 transitions. [2021-12-22 09:13:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2021-12-22 09:13:22,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:22,649 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:22,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-22 09:13:22,649 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:22,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -404909594, now seen corresponding path program 1 times [2021-12-22 09:13:22,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:22,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431070435] [2021-12-22 09:13:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:22,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-22 09:13:22,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:22,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431070435] [2021-12-22 09:13:22,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431070435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:22,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:22,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:22,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256326336] [2021-12-22 09:13:22,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:22,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:22,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:22,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:22,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:22,757 INFO L87 Difference]: Start difference. First operand 15696 states and 17400 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:23,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:23,317 INFO L93 Difference]: Finished difference Result 30853 states and 34231 transitions. [2021-12-22 09:13:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:23,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 438 [2021-12-22 09:13:23,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:23,328 INFO L225 Difference]: With dead ends: 30853 [2021-12-22 09:13:23,328 INFO L226 Difference]: Without dead ends: 15527 [2021-12-22 09:13:23,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:23,334 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 112 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:23,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 146 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-22 09:13:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15527 states. [2021-12-22 09:13:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15527 to 14408. [2021-12-22 09:13:23,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14408 states, 14407 states have (on average 1.1028666620392864) internal successors, (15889), 14407 states have internal predecessors, (15889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14408 states to 14408 states and 15889 transitions. [2021-12-22 09:13:23,455 INFO L78 Accepts]: Start accepts. Automaton has 14408 states and 15889 transitions. Word has length 438 [2021-12-22 09:13:23,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:23,455 INFO L470 AbstractCegarLoop]: Abstraction has 14408 states and 15889 transitions. [2021-12-22 09:13:23,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 14408 states and 15889 transitions. [2021-12-22 09:13:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2021-12-22 09:13:23,465 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:23,465 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-22 09:13:23,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-22 09:13:23,466 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 77941500, now seen corresponding path program 1 times [2021-12-22 09:13:23,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:23,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153401686] [2021-12-22 09:13:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:23,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-12-22 09:13:23,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:23,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153401686] [2021-12-22 09:13:23,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153401686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:23,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:23,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 09:13:23,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263177355] [2021-12-22 09:13:23,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:23,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 09:13:23,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:23,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 09:13:23,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-22 09:13:23,594 INFO L87 Difference]: Start difference. First operand 14408 states and 15889 transitions. Second operand has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:24,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:24,835 INFO L93 Difference]: Finished difference Result 34173 states and 37671 transitions. [2021-12-22 09:13:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 09:13:24,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 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 487 [2021-12-22 09:13:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:24,855 INFO L225 Difference]: With dead ends: 34173 [2021-12-22 09:13:24,855 INFO L226 Difference]: Without dead ends: 19951 [2021-12-22 09:13:24,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-22 09:13:24,865 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 386 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:24,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 80 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 09:13:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19951 states. [2021-12-22 09:13:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19951 to 16063. [2021-12-22 09:13:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16063 states, 16062 states have (on average 1.0988668907981571) internal successors, (17650), 16062 states have internal predecessors, (17650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16063 states to 16063 states and 17650 transitions. [2021-12-22 09:13:25,073 INFO L78 Accepts]: Start accepts. Automaton has 16063 states and 17650 transitions. Word has length 487 [2021-12-22 09:13:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:25,074 INFO L470 AbstractCegarLoop]: Abstraction has 16063 states and 17650 transitions. [2021-12-22 09:13:25,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 5 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 16063 states and 17650 transitions. [2021-12-22 09:13:25,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-12-22 09:13:25,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:25,084 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:25,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-22 09:13:25,085 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash 380464736, now seen corresponding path program 1 times [2021-12-22 09:13:25,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:25,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198286466] [2021-12-22 09:13:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:25,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 564 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-22 09:13:25,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:25,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198286466] [2021-12-22 09:13:25,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198286466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:25,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:25,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 09:13:25,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007732596] [2021-12-22 09:13:25,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:25,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 09:13:25,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 09:13:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-22 09:13:25,224 INFO L87 Difference]: Start difference. First operand 16063 states and 17650 transitions. Second operand has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:26,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:26,353 INFO L93 Difference]: Finished difference Result 33422 states and 36705 transitions. [2021-12-22 09:13:26,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 09:13:26,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 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 [2021-12-22 09:13:26,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:26,368 INFO L225 Difference]: With dead ends: 33422 [2021-12-22 09:13:26,368 INFO L226 Difference]: Without dead ends: 17545 [2021-12-22 09:13:26,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-22 09:13:26,377 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 385 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:26,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 65 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-22 09:13:26,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17545 states. [2021-12-22 09:13:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17545 to 11454. [2021-12-22 09:13:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11454 states, 11453 states have (on average 1.0977036584301056) internal successors, (12572), 11453 states have internal predecessors, (12572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:26,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11454 states to 11454 states and 12572 transitions. [2021-12-22 09:13:26,529 INFO L78 Accepts]: Start accepts. Automaton has 11454 states and 12572 transitions. Word has length 491 [2021-12-22 09:13:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:26,529 INFO L470 AbstractCegarLoop]: Abstraction has 11454 states and 12572 transitions. [2021-12-22 09:13:26,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.6) internal successors, (388), 5 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 11454 states and 12572 transitions. [2021-12-22 09:13:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2021-12-22 09:13:26,537 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:26,537 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-12-22 09:13:26,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-22 09:13:26,538 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:26,538 INFO L85 PathProgramCache]: Analyzing trace with hash 930769197, now seen corresponding path program 1 times [2021-12-22 09:13:26,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:26,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530407436] [2021-12-22 09:13:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:26,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-12-22 09:13:26,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530407436] [2021-12-22 09:13:26,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530407436] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:26,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:26,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:26,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589197293] [2021-12-22 09:13:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:26,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:26,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:26,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:26,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:26,651 INFO L87 Difference]: Start difference. First operand 11454 states and 12572 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:27,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:27,175 INFO L93 Difference]: Finished difference Result 24377 states and 26715 transitions. [2021-12-22 09:13:27,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:27,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 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 589 [2021-12-22 09:13:27,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:27,185 INFO L225 Difference]: With dead ends: 24377 [2021-12-22 09:13:27,186 INFO L226 Difference]: Without dead ends: 11819 [2021-12-22 09:13:27,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:27,194 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:27,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 321 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 09:13:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11819 states. [2021-12-22 09:13:27,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11819 to 11451. [2021-12-22 09:13:27,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11451 states, 11450 states have (on average 1.0831441048034935) internal successors, (12402), 11450 states have internal predecessors, (12402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11451 states to 11451 states and 12402 transitions. [2021-12-22 09:13:27,303 INFO L78 Accepts]: Start accepts. Automaton has 11451 states and 12402 transitions. Word has length 589 [2021-12-22 09:13:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:27,303 INFO L470 AbstractCegarLoop]: Abstraction has 11451 states and 12402 transitions. [2021-12-22 09:13:27,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 11451 states and 12402 transitions. [2021-12-22 09:13:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2021-12-22 09:13:27,313 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 09:13:27,313 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:27,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-22 09:13:27,313 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 09:13:27,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 09:13:27,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1987991014, now seen corresponding path program 1 times [2021-12-22 09:13:27,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 09:13:27,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174710541] [2021-12-22 09:13:27,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 09:13:27,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 09:13:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 09:13:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2021-12-22 09:13:27,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 09:13:27,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174710541] [2021-12-22 09:13:27,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174710541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 09:13:27,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 09:13:27,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 09:13:27,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322335292] [2021-12-22 09:13:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 09:13:27,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 09:13:27,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 09:13:27,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 09:13:27,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:27,517 INFO L87 Difference]: Start difference. First operand 11451 states and 12402 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 09:13:28,007 INFO L93 Difference]: Finished difference Result 23264 states and 25170 transitions. [2021-12-22 09:13:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 09:13:28,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 703 [2021-12-22 09:13:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 09:13:28,008 INFO L225 Difference]: With dead ends: 23264 [2021-12-22 09:13:28,008 INFO L226 Difference]: Without dead ends: 0 [2021-12-22 09:13:28,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 09:13:28,017 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 61 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 09:13:28,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 93 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 09:13:28,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-22 09:13:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-22 09:13:28,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-22 09:13:28,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 703 [2021-12-22 09:13:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 09:13:28,019 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-22 09:13:28,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 09:13:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-22 09:13:28,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-22 09:13:28,021 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-22 09:13:28,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-22 09:13:28,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,116 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,117 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,118 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,120 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse25 (+ ~a23~0 43))) (let ((.cse24 (= ~a25~0 12)) (.cse20 (<= .cse25 0)) (.cse13 (= ~a25~0 11)) (.cse7 (<= ~a25~0 10)) (.cse8 (= ~a3~0 1)) (.cse15 (not (<= ~a29~0 277))) (.cse16 (= ~a4~0 1)) (.cse10 (= ~a8~0 15))) (let ((.cse0 (or (and .cse13 .cse8 .cse15 .cse16 .cse10) (and .cse7 .cse8 .cse15 .cse16 (<= ~a25~0 9) .cse10))) (.cse22 (<= ~a29~0 275)) (.cse18 (<= 307 ~a23~0)) (.cse14 (<= ~a29~0 599999)) (.cse3 (<= 10 ~a25~0)) (.cse21 (<= ~a29~0 245)) (.cse11 (<= (+ ~a29~0 21) 0)) (.cse2 (not .cse20)) (.cse19 (or (= ~a25~0 13) .cse24)) (.cse4 (<= ~a29~0 140)) (.cse6 (< 0 .cse25)) (.cse1 (<= ~a23~0 138)) (.cse9 (<= ~a29~0 220)) (.cse17 (<= ~a29~0 384312)) (.cse5 (= ~a4~0 0)) (.cse23 (= ~a25~0 9)) (.cse12 (<= ~a23~0 312))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse1 .cse9 .cse10) (and .cse11 .cse3 .cse5 .cse7 .cse8 .cse9 .cse12 .cse10) (and .cse4 .cse5 .cse13 .cse8 .cse12 .cse10) (and .cse7 .cse14 .cse8 .cse15 .cse16 .cse10) (and .cse13 .cse14 .cse8 .cse16 .cse10) (and .cse7 .cse8 .cse16 (<= (+ ~a29~0 287232) 0) (<= 312 ~a23~0) .cse10) (and .cse3 (<= (+ 28300 ~a29~0) 0) .cse5 .cse7 .cse8 .cse10) (and .cse5 .cse13 .cse14 .cse8 .cse15 .cse12 .cse10) (and .cse0 (<= (+ ~a23~0 599772) 0)) (and .cse17 .cse18 .cse8 .cse16 .cse10 .cse19) (and .cse20 .cse8 .cse16 (<= 214883 ~a29~0) .cse10 (= ~a25~0 10)) (and .cse21 .cse8 .cse16 .cse10 .cse19) (and .cse22 .cse23 .cse8 .cse16 .cse10) (and .cse22 .cse24 .cse5 (or (not (= |ULTIMATE.start_calculate_output_~input#1| 1)) .cse6 (<= 141 ~a29~0)) .cse8 .cse10) (and .cse3 .cse18 .cse7 .cse14 .cse8 .cse16 .cse10) (and .cse17 .cse8 .cse15 .cse16 .cse10 .cse19) (and .cse3 .cse7 .cse21 .cse8 .cse16 .cse10) (and .cse17 .cse23 .cse8 .cse16 .cse12 .cse10) (and .cse11 .cse5 .cse23 .cse8 .cse9 .cse12 .cse10) (and .cse11 .cse5 .cse8 .cse1 .cse2 .cse10 .cse19) (and .cse4 .cse5 .cse6 .cse23 .cse8 .cse1 .cse9 .cse10) (and .cse17 .cse5 (< 277 ~a29~0) .cse23 .cse8 .cse12 .cse10))))) [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-22 09:13:40,126 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,127 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-22 09:13:40,128 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-22 09:13:40,129 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse25 (+ ~a23~0 43))) (let ((.cse24 (= ~a25~0 12)) (.cse20 (<= .cse25 0)) (.cse13 (= ~a25~0 11)) (.cse7 (<= ~a25~0 10)) (.cse8 (= ~a3~0 1)) (.cse15 (not (<= ~a29~0 277))) (.cse16 (= ~a4~0 1)) (.cse10 (= ~a8~0 15))) (let ((.cse0 (or (and .cse13 .cse8 .cse15 .cse16 .cse10) (and .cse7 .cse8 .cse15 .cse16 (<= ~a25~0 9) .cse10))) (.cse22 (<= ~a29~0 275)) (.cse18 (<= 307 ~a23~0)) (.cse14 (<= ~a29~0 599999)) (.cse3 (<= 10 ~a25~0)) (.cse21 (<= ~a29~0 245)) (.cse11 (<= (+ ~a29~0 21) 0)) (.cse2 (not .cse20)) (.cse19 (or (= ~a25~0 13) .cse24)) (.cse4 (<= ~a29~0 140)) (.cse6 (< 0 .cse25)) (.cse1 (<= ~a23~0 138)) (.cse9 (<= ~a29~0 220)) (.cse17 (<= ~a29~0 384312)) (.cse5 (= ~a4~0 0)) (.cse23 (= ~a25~0 9)) (.cse12 (<= ~a23~0 312))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse1 .cse9 .cse10) (and .cse11 .cse3 .cse5 .cse7 .cse8 .cse9 .cse12 .cse10) (and .cse4 .cse5 .cse13 .cse8 .cse12 .cse10) (and .cse7 .cse14 .cse8 .cse15 .cse16 .cse10) (and .cse13 .cse14 .cse8 .cse16 .cse10) (and .cse7 .cse8 .cse16 (<= (+ ~a29~0 287232) 0) (<= 312 ~a23~0) .cse10) (and .cse3 (<= (+ 28300 ~a29~0) 0) .cse5 .cse7 .cse8 .cse10) (and .cse5 .cse13 .cse14 .cse8 .cse15 .cse12 .cse10) (and .cse0 (<= (+ ~a23~0 599772) 0)) (and .cse17 .cse18 .cse8 .cse16 .cse10 .cse19) (and .cse20 .cse8 .cse16 (<= 214883 ~a29~0) .cse10 (= ~a25~0 10)) (and .cse21 .cse8 .cse16 .cse10 .cse19) (and .cse22 .cse23 .cse8 .cse16 .cse10) (and .cse22 .cse24 .cse5 (or (not (= |ULTIMATE.start_calculate_output_~input#1| 1)) .cse6 (<= 141 ~a29~0)) .cse8 .cse10) (and .cse3 .cse18 .cse7 .cse14 .cse8 .cse16 .cse10) (and .cse17 .cse8 .cse15 .cse16 .cse10 .cse19) (and .cse3 .cse7 .cse21 .cse8 .cse16 .cse10) (and .cse17 .cse23 .cse8 .cse16 .cse12 .cse10) (and .cse11 .cse5 .cse23 .cse8 .cse9 .cse12 .cse10) (and .cse11 .cse5 .cse8 .cse1 .cse2 .cse10 .cse19) (and .cse4 .cse5 .cse6 .cse23 .cse8 .cse1 .cse9 .cse10) (and .cse17 .cse5 (< 277 ~a29~0) .cse23 .cse8 .cse12 .cse10))))) [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,130 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-22 09:13:40,131 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-22 09:13:40,132 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,133 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-22 09:13:40,134 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-22 09:13:40,134 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,134 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-22 09:13:40,138 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-22 09:13:40,146 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-22 09:13:40,147 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,148 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-22 09:13:40,149 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,150 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,151 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,152 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-22 09:13:40,153 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-22 09:13:40,156 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 09:13:40,157 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 09:13:40,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:13:40 BoogieIcfgContainer [2021-12-22 09:13:40,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 09:13:40,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 09:13:40,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 09:13:40,193 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 09:13:40,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:12:58" (3/4) ... [2021-12-22 09:13:40,195 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-22 09:13:40,213 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-22 09:13:40,219 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-22 09:13:40,220 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-22 09:13:40,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-22 09:13:40,305 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 09:13:40,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 09:13:40,306 INFO L158 Benchmark]: Toolchain (without parser) took 43821.25ms. Allocated memory was 113.2MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 83.5MB in the beginning and 558.2MB in the end (delta: -474.7MB). Peak memory consumption was 646.9MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,306 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 70.9MB in the beginning and 70.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 09:13:40,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.85ms. Allocated memory is still 113.2MB. Free memory was 83.2MB in the beginning and 55.7MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.52ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 93.9MB in the end (delta: -38.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,306 INFO L158 Benchmark]: Boogie Preprocessor took 79.25ms. Allocated memory is still 136.3MB. Free memory was 93.9MB in the beginning and 84.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,307 INFO L158 Benchmark]: RCFGBuilder took 1191.55ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 52.1MB in the end (delta: 32.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,307 INFO L158 Benchmark]: TraceAbstraction took 41844.96ms. Allocated memory was 136.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 96.5MB in the beginning and 583.9MB in the end (delta: -487.4MB). Peak memory consumption was 908.3MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,307 INFO L158 Benchmark]: Witness Printer took 112.94ms. Allocated memory is still 1.2GB. Free memory was 583.9MB in the beginning and 558.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-22 09:13:40,308 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory was 70.9MB in the beginning and 70.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.85ms. Allocated memory is still 113.2MB. Free memory was 83.2MB in the beginning and 55.7MB in the end (delta: 27.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.52ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 93.9MB in the end (delta: -38.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.25ms. Allocated memory is still 136.3MB. Free memory was 93.9MB in the beginning and 84.1MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1191.55ms. Allocated memory is still 136.3MB. Free memory was 84.1MB in the beginning and 52.1MB in the end (delta: 32.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * TraceAbstraction took 41844.96ms. Allocated memory was 136.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 96.5MB in the beginning and 583.9MB in the end (delta: -487.4MB). Peak memory consumption was 908.3MB. Max. memory is 16.1GB. * Witness Printer took 112.94ms. Allocated memory is still 1.2GB. Free memory was 583.9MB in the beginning and 558.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. 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: 82]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.8s, OverallIterations: 24, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 19.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5794 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5794 mSDsluCounter, 4388 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 720 mSDsCounter, 3101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21840 IncrementalHoareTripleChecker+Invalid, 24941 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3101 mSolverCounterUnsat, 3668 mSDtfsCounter, 21840 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1103 GetRequests, 1047 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21037occurred in iteration=18, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 24 MinimizatonAttempts, 31845 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 167 NumberOfFragments, 1135 HoareAnnotationTreeSize, 3 FomulaSimplifications, 42632 FormulaSimplificationTreeSizeReduction, 7.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 95240 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 7790 NumberOfCodeBlocks, 7790 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 7998 ConstructedInterpolants, 0 QuantifiedInterpolants, 25243 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1168 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 7555/7783 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a25 == 11 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a25 <= 9) && a8 == 15)) && a23 <= 138) && !(a23 + 43 <= 0)) || ((((((((10 <= a25 && a29 <= 140) && a4 == 0) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || (((((((a29 + 21 <= 0 && 10 <= a25) && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a29 <= 140 && a4 == 0) && a25 == 11) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 <= 10 && a29 <= 599999) && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15)) || ((((a25 == 11 && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a3 == 1) && a4 == 1) && a29 + 287232 <= 0) && 312 <= a23) && a8 == 15)) || (((((10 <= a25 && 28300 + a29 <= 0) && a4 == 0) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((a4 == 0 && a25 == 11) && a29 <= 599999) && a3 == 1) && !(a29 <= 277)) && a23 <= 312) && a8 == 15)) || ((((((a25 == 11 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a25 <= 9) && a8 == 15)) && a23 + 599772 <= 0)) || (((((a29 <= 384312 && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) && a25 == 10)) || ((((a29 <= 245 && a3 == 1) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || ((((a29 <= 275 && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && ((!(input == 1) || 0 < a23 + 43) || 141 <= a29)) && a3 == 1) && a8 == 15)) || ((((((10 <= a25 && 307 <= a23) && a25 <= 10) && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 384312 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((10 <= a25 && a25 <= 10) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 384312 && a25 == 9) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a29 + 21 <= 0 && a4 == 0) && a25 == 9) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || ((((((a29 + 21 <= 0 && a4 == 0) && a3 == 1) && a23 <= 138) && !(a23 + 43 <= 0)) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((((a29 <= 140 && a4 == 0) && 0 < a23 + 43) && a25 == 9) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || ((((((a29 <= 384312 && a4 == 0) && 277 < a29) && a25 == 9) && a3 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((a25 == 11 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a25 <= 9) && a8 == 15)) && a23 <= 138) && !(a23 + 43 <= 0)) || ((((((((10 <= a25 && a29 <= 140) && a4 == 0) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || (((((((a29 + 21 <= 0 && 10 <= a25) && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a29 <= 140 && a4 == 0) && a25 == 11) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 <= 10 && a29 <= 599999) && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15)) || ((((a25 == 11 && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a3 == 1) && a4 == 1) && a29 + 287232 <= 0) && 312 <= a23) && a8 == 15)) || (((((10 <= a25 && 28300 + a29 <= 0) && a4 == 0) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((a4 == 0 && a25 == 11) && a29 <= 599999) && a3 == 1) && !(a29 <= 277)) && a23 <= 312) && a8 == 15)) || ((((((a25 == 11 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) || (((((a25 <= 10 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a25 <= 9) && a8 == 15)) && a23 + 599772 <= 0)) || (((((a29 <= 384312 && 307 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((a23 + 43 <= 0 && a3 == 1) && a4 == 1) && 214883 <= a29) && a8 == 15) && a25 == 10)) || ((((a29 <= 245 && a3 == 1) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || ((((a29 <= 275 && a25 == 9) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && ((!(input == 1) || 0 < a23 + 43) || 141 <= a29)) && a3 == 1) && a8 == 15)) || ((((((10 <= a25 && 307 <= a23) && a25 <= 10) && a29 <= 599999) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 384312 && a3 == 1) && !(a29 <= 277)) && a4 == 1) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((10 <= a25 && a25 <= 10) && a29 <= 245) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a29 <= 384312 && a25 == 9) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a29 + 21 <= 0 && a4 == 0) && a25 == 9) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || ((((((a29 + 21 <= 0 && a4 == 0) && a3 == 1) && a23 <= 138) && !(a23 + 43 <= 0)) && a8 == 15) && (a25 == 13 || a25 == 12))) || (((((((a29 <= 140 && a4 == 0) && 0 < a23 + 43) && a25 == 9) && a3 == 1) && a23 <= 138) && a29 <= 220) && a8 == 15)) || ((((((a29 <= 384312 && a4 == 0) && 277 < a29) && a25 == 9) && a3 == 1) && a23 <= 312) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-22 09:13:40,336 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