./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/Problem02_label02.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 85831c87ee726a5ebef35050faa06bdc8a4bd6c3085f34f2763b92257fb80baa --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 09:02:27,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 09:02:27,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 09:02:27,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 09:02:27,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 09:02:27,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 09:02:27,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 09:02:27,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 09:02:27,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 09:02:27,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 09:02:27,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 09:02:27,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 09:02:27,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 09:02:27,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 09:02:27,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 09:02:27,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 09:02:27,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 09:02:27,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 09:02:27,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 09:02:27,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 09:02:27,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 09:02:27,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 09:02:27,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 09:02:27,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 09:02:27,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 09:02:27,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 09:02:27,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 09:02:27,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 09:02:27,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 09:02:27,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 09:02:27,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 09:02:27,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 09:02:27,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 09:02:27,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 09:02:27,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 09:02:27,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 09:02:27,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 09:02:27,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 09:02:27,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 09:02:27,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 09:02:27,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 09:02:27,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 09:02:27,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 09:02:27,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 09:02:27,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 09:02:27,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 09:02:27,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 09:02:27,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 09:02:27,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 09:02:27,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 09:02:27,334 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 09:02:27,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 09:02:27,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 09:02:27,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 09:02:27,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 09:02:27,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 09:02:27,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 09:02:27,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 09:02:27,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 09:02:27,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 09:02:27,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:02:27,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 09:02:27,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 09:02:27,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 09:02:27,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 09:02:27,338 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85831c87ee726a5ebef35050faa06bdc8a4bd6c3085f34f2763b92257fb80baa [2021-12-15 09:02:27,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 09:02:27,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 09:02:27,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 09:02:27,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 09:02:27,545 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 09:02:27,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2021-12-15 09:02:27,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4381d9a/9abd97c350834079b6ac8dabce9107aa/FLAGed2a57f84 [2021-12-15 09:02:28,075 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 09:02:28,075 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label02.c [2021-12-15 09:02:28,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4381d9a/9abd97c350834079b6ac8dabce9107aa/FLAGed2a57f84 [2021-12-15 09:02:28,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4381d9a/9abd97c350834079b6ac8dabce9107aa [2021-12-15 09:02:28,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 09:02:28,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 09:02:28,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 09:02:28,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 09:02:28,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 09:02:28,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708521c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28, skipping insertion in model container [2021-12-15 09:02:28,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 09:02:28,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 09:02:28,353 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/Problem02_label02.c[15989,16002] [2021-12-15 09:02:28,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:02:28,413 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 09:02:28,466 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/Problem02_label02.c[15989,16002] [2021-12-15 09:02:28,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 09:02:28,485 INFO L208 MainTranslator]: Completed translation [2021-12-15 09:02:28,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28 WrapperNode [2021-12-15 09:02:28,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 09:02:28,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 09:02:28,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 09:02:28,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 09:02:28,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,551 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-12-15 09:02:28,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 09:02:28,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 09:02:28,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 09:02:28,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 09:02:28,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 09:02:28,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 09:02:28,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 09:02:28,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 09:02:28,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (1/1) ... [2021-12-15 09:02:28,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 09:02:28,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:02:28,651 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) [2021-12-15 09:02:28,671 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 [2021-12-15 09:02:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 09:02:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 09:02:28,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 09:02:28,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 09:02:28,738 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 09:02:28,739 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 09:02:29,355 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 09:02:29,375 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 09:02:29,375 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 09:02:29,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:29 BoogieIcfgContainer [2021-12-15 09:02:29,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 09:02:29,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 09:02:29,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 09:02:29,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 09:02:29,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:02:28" (1/3) ... [2021-12-15 09:02:29,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e44dbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:02:29, skipping insertion in model container [2021-12-15 09:02:29,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:02:28" (2/3) ... [2021-12-15 09:02:29,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e44dbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:02:29, skipping insertion in model container [2021-12-15 09:02:29,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:29" (3/3) ... [2021-12-15 09:02:29,384 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label02.c [2021-12-15 09:02:29,387 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 09:02:29,387 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 09:02:29,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 09:02:29,429 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 [2021-12-15 09:02:29,430 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 09:02:29,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:29,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 09:02:29,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:29,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:29,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:29,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:29,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1717349669, now seen corresponding path program 1 times [2021-12-15 09:02:29,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:29,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717104325] [2021-12-15 09:02:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:29,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:29,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:29,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717104325] [2021-12-15 09:02:29,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717104325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:29,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:29,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:29,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027374616] [2021-12-15 09:02:29,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:29,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:29,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:29,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:29,713 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:30,246 INFO L93 Difference]: Finished difference Result 596 states and 1030 transitions. [2021-12-15 09:02:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:30,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 09:02:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:30,257 INFO L225 Difference]: With dead ends: 596 [2021-12-15 09:02:30,257 INFO L226 Difference]: Without dead ends: 305 [2021-12-15 09:02:30,260 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 [2021-12-15 09:02:30,262 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:30,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 89 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 09:02:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-12-15 09:02:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-12-15 09:02:30,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.5263157894736843) internal successors, (464), 304 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2021-12-15 09:02:30,308 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 93 [2021-12-15 09:02:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:30,309 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2021-12-15 09:02:30,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2021-12-15 09:02:30,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-15 09:02:30,315 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:30,315 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 09:02:30,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 09:02:30,316 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1996609823, now seen corresponding path program 1 times [2021-12-15 09:02:30,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:30,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504578166] [2021-12-15 09:02:30,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:30,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:30,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:30,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504578166] [2021-12-15 09:02:30,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504578166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:30,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:30,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:30,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250555824] [2021-12-15 09:02:30,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:30,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:30,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:30,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:30,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:30,400 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:30,566 INFO L93 Difference]: Finished difference Result 599 states and 913 transitions. [2021-12-15 09:02:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:30,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-15 09:02:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:30,568 INFO L225 Difference]: With dead ends: 599 [2021-12-15 09:02:30,568 INFO L226 Difference]: Without dead ends: 296 [2021-12-15 09:02:30,569 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 [2021-12-15 09:02:30,570 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 202 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:30,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 23 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-12-15 09:02:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2021-12-15 09:02:30,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.4271186440677965) internal successors, (421), 295 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 421 transitions. [2021-12-15 09:02:30,578 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 421 transitions. Word has length 104 [2021-12-15 09:02:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:30,579 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 421 transitions. [2021-12-15 09:02:30,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,579 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 421 transitions. [2021-12-15 09:02:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-15 09:02:30,580 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:30,580 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 09:02:30,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 09:02:30,581 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:30,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1573604474, now seen corresponding path program 1 times [2021-12-15 09:02:30,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:30,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184346168] [2021-12-15 09:02:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:30,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:30,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:30,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184346168] [2021-12-15 09:02:30,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184346168] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:30,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:30,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:30,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467174700] [2021-12-15 09:02:30,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:30,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:30,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:30,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:30,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:30,641 INFO L87 Difference]: Start difference. First operand 296 states and 421 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:30,916 INFO L93 Difference]: Finished difference Result 880 states and 1254 transitions. [2021-12-15 09:02:30,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:30,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-12-15 09:02:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:30,918 INFO L225 Difference]: With dead ends: 880 [2021-12-15 09:02:30,918 INFO L226 Difference]: Without dead ends: 586 [2021-12-15 09:02:30,919 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 [2021-12-15 09:02:30,920 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 148 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:30,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 79 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2021-12-15 09:02:30,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 581. [2021-12-15 09:02:30,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.3758620689655172) internal successors, (798), 580 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 798 transitions. [2021-12-15 09:02:30,934 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 798 transitions. Word has length 111 [2021-12-15 09:02:30,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:30,934 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 798 transitions. [2021-12-15 09:02:30,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 798 transitions. [2021-12-15 09:02:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-15 09:02:30,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:30,936 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:30,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 09:02:30,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1198778961, now seen corresponding path program 1 times [2021-12-15 09:02:30,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:30,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750843346] [2021-12-15 09:02:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:30,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:30,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:30,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750843346] [2021-12-15 09:02:30,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750843346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:30,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:30,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:30,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87789981] [2021-12-15 09:02:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:30,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:30,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:30,992 INFO L87 Difference]: Start difference. First operand 581 states and 798 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:31,271 INFO L93 Difference]: Finished difference Result 1442 states and 1981 transitions. [2021-12-15 09:02:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:31,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-15 09:02:31,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:31,280 INFO L225 Difference]: With dead ends: 1442 [2021-12-15 09:02:31,280 INFO L226 Difference]: Without dead ends: 863 [2021-12-15 09:02:31,281 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 [2021-12-15 09:02:31,282 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 142 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:31,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 58 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2021-12-15 09:02:31,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2021-12-15 09:02:31,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.2981438515081207) internal successors, (1119), 862 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1119 transitions. [2021-12-15 09:02:31,294 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1119 transitions. Word has length 115 [2021-12-15 09:02:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:31,294 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 1119 transitions. [2021-12-15 09:02:31,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1119 transitions. [2021-12-15 09:02:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-15 09:02:31,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:31,299 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:31,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 09:02:31,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 665216388, now seen corresponding path program 1 times [2021-12-15 09:02:31,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:31,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831738345] [2021-12-15 09:02:31,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:31,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:31,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:31,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831738345] [2021-12-15 09:02:31,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831738345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:31,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:31,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 09:02:31,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8158432] [2021-12-15 09:02:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:31,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:31,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:31,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:31,349 INFO L87 Difference]: Start difference. First operand 863 states and 1119 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:31,635 INFO L93 Difference]: Finished difference Result 2425 states and 3144 transitions. [2021-12-15 09:02:31,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:31,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2021-12-15 09:02:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:31,640 INFO L225 Difference]: With dead ends: 2425 [2021-12-15 09:02:31,640 INFO L226 Difference]: Without dead ends: 1564 [2021-12-15 09:02:31,642 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 [2021-12-15 09:02:31,642 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 158 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:31,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 61 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2021-12-15 09:02:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1564. [2021-12-15 09:02:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1563 states have (on average 1.2264875239923225) internal successors, (1917), 1563 states have internal predecessors, (1917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 1917 transitions. [2021-12-15 09:02:31,663 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 1917 transitions. Word has length 115 [2021-12-15 09:02:31,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:31,664 INFO L470 AbstractCegarLoop]: Abstraction has 1564 states and 1917 transitions. [2021-12-15 09:02:31,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:31,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 1917 transitions. [2021-12-15 09:02:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 09:02:31,666 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:31,666 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:31,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 09:02:31,666 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:31,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash 586537466, now seen corresponding path program 1 times [2021-12-15 09:02:31,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:31,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892297813] [2021-12-15 09:02:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:31,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-15 09:02:31,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:31,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892297813] [2021-12-15 09:02:31,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892297813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:31,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:31,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:31,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221300891] [2021-12-15 09:02:31,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:31,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:31,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:31,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:31,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:31,705 INFO L87 Difference]: Start difference. First operand 1564 states and 1917 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:32,003 INFO L93 Difference]: Finished difference Result 3825 states and 4666 transitions. [2021-12-15 09:02:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:32,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 120 [2021-12-15 09:02:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:32,008 INFO L225 Difference]: With dead ends: 3825 [2021-12-15 09:02:32,008 INFO L226 Difference]: Without dead ends: 1559 [2021-12-15 09:02:32,010 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 [2021-12-15 09:02:32,013 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 142 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:32,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 237 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 09:02:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2021-12-15 09:02:32,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1139. [2021-12-15 09:02:32,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1138 states have (on average 1.1687170474516695) internal successors, (1330), 1138 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1330 transitions. [2021-12-15 09:02:32,034 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1330 transitions. Word has length 120 [2021-12-15 09:02:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:32,034 INFO L470 AbstractCegarLoop]: Abstraction has 1139 states and 1330 transitions. [2021-12-15 09:02:32,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1330 transitions. [2021-12-15 09:02:32,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 09:02:32,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:32,036 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:32,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 09:02:32,036 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:32,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1454931417, now seen corresponding path program 1 times [2021-12-15 09:02:32,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:32,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890267175] [2021-12-15 09:02:32,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:32,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:32,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890267175] [2021-12-15 09:02:32,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890267175] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 09:02:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867112320] [2021-12-15 09:02:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:32,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:02:32,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 09:02:32,190 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) [2021-12-15 09:02:32,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 09:02:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:32,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 09:02:32,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 09:02:32,468 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-15 09:02:32,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 09:02:32,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867112320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:32,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 09:02:32,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 09:02:32,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687590100] [2021-12-15 09:02:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:32,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:32,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:32,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:32,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:02:32,470 INFO L87 Difference]: Start difference. First operand 1139 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:32,720 INFO L93 Difference]: Finished difference Result 2415 states and 2798 transitions. [2021-12-15 09:02:32,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 120 [2021-12-15 09:02:32,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:32,723 INFO L225 Difference]: With dead ends: 2415 [2021-12-15 09:02:32,723 INFO L226 Difference]: Without dead ends: 1138 [2021-12-15 09:02:32,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 09:02:32,725 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 63 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:32,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 202 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:32,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2021-12-15 09:02:32,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2021-12-15 09:02:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1137 states have (on average 1.1046613896218118) internal successors, (1256), 1137 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1256 transitions. [2021-12-15 09:02:32,737 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1256 transitions. Word has length 120 [2021-12-15 09:02:32,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:32,738 INFO L470 AbstractCegarLoop]: Abstraction has 1138 states and 1256 transitions. [2021-12-15 09:02:32,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:32,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1256 transitions. [2021-12-15 09:02:32,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-15 09:02:32,739 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:32,739 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:32,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 09:02:32,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 09:02:32,956 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:32,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2048749955, now seen corresponding path program 1 times [2021-12-15 09:02:32,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:32,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346843624] [2021-12-15 09:02:32,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:32,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:33,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:33,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346843624] [2021-12-15 09:02:33,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346843624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:33,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:33,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:33,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893896781] [2021-12-15 09:02:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:33,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:33,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:33,002 INFO L87 Difference]: Start difference. First operand 1138 states and 1256 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:33,263 INFO L93 Difference]: Finished difference Result 2412 states and 2677 transitions. [2021-12-15 09:02:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:33,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-12-15 09:02:33,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:33,270 INFO L225 Difference]: With dead ends: 2412 [2021-12-15 09:02:33,270 INFO L226 Difference]: Without dead ends: 1276 [2021-12-15 09:02:33,271 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 [2021-12-15 09:02:33,272 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 136 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:33,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 35 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:33,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2021-12-15 09:02:33,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2021-12-15 09:02:33,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.1090196078431374) internal successors, (1414), 1275 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1414 transitions. [2021-12-15 09:02:33,309 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1414 transitions. Word has length 129 [2021-12-15 09:02:33,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:33,310 INFO L470 AbstractCegarLoop]: Abstraction has 1276 states and 1414 transitions. [2021-12-15 09:02:33,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1414 transitions. [2021-12-15 09:02:33,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-12-15 09:02:33,312 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:33,312 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:33,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 09:02:33,312 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:33,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1861555705, now seen corresponding path program 1 times [2021-12-15 09:02:33,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:33,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096012422] [2021-12-15 09:02:33,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:33,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 09:02:33,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:33,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096012422] [2021-12-15 09:02:33,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096012422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:33,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:33,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:33,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732552478] [2021-12-15 09:02:33,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:33,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:33,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:33,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:33,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:33,340 INFO L87 Difference]: Start difference. First operand 1276 states and 1414 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:33,567 INFO L93 Difference]: Finished difference Result 2549 states and 2817 transitions. [2021-12-15 09:02:33,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:33,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-12-15 09:02:33,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:33,570 INFO L225 Difference]: With dead ends: 2549 [2021-12-15 09:02:33,571 INFO L226 Difference]: Without dead ends: 1134 [2021-12-15 09:02:33,572 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 [2021-12-15 09:02:33,572 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 128 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:33,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 211 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2021-12-15 09:02:33,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1132. [2021-12-15 09:02:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1131 states have (on average 1.0778072502210434) internal successors, (1219), 1131 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1219 transitions. [2021-12-15 09:02:33,585 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1219 transitions. Word has length 133 [2021-12-15 09:02:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:33,585 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1219 transitions. [2021-12-15 09:02:33,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1219 transitions. [2021-12-15 09:02:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-12-15 09:02:33,587 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:33,587 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:33,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 09:02:33,588 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash -156969243, now seen corresponding path program 1 times [2021-12-15 09:02:33,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:33,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269667563] [2021-12-15 09:02:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:33,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-15 09:02:33,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:33,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269667563] [2021-12-15 09:02:33,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269667563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:33,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:33,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:33,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892817997] [2021-12-15 09:02:33,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:33,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:33,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:33,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:33,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:33,621 INFO L87 Difference]: Start difference. First operand 1132 states and 1219 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:33,853 INFO L93 Difference]: Finished difference Result 2262 states and 2436 transitions. [2021-12-15 09:02:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 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 200 [2021-12-15 09:02:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:33,856 INFO L225 Difference]: With dead ends: 2262 [2021-12-15 09:02:33,856 INFO L226 Difference]: Without dead ends: 1132 [2021-12-15 09:02:33,857 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 [2021-12-15 09:02:33,857 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 110 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:33,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 204 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:33,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-15 09:02:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2021-12-15 09:02:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 1131 states have (on average 1.06631299734748) internal successors, (1206), 1131 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1206 transitions. [2021-12-15 09:02:33,869 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1206 transitions. Word has length 200 [2021-12-15 09:02:33,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:33,869 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1206 transitions. [2021-12-15 09:02:33,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:33,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1206 transitions. [2021-12-15 09:02:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-15 09:02:33,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 09:02:33,872 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 09:02:33,872 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 09:02:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 09:02:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash -558163709, now seen corresponding path program 1 times [2021-12-15 09:02:33,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 09:02:33,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563587377] [2021-12-15 09:02:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 09:02:33,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 09:02:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 09:02:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-15 09:02:33,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 09:02:33,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563587377] [2021-12-15 09:02:33,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563587377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 09:02:33,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 09:02:33,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 09:02:33,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215201405] [2021-12-15 09:02:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 09:02:33,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 09:02:33,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 09:02:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 09:02:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 09:02:33,908 INFO L87 Difference]: Start difference. First operand 1132 states and 1206 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:34,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 09:02:34,151 INFO L93 Difference]: Finished difference Result 2681 states and 2858 transitions. [2021-12-15 09:02:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 09:02:34,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 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 221 [2021-12-15 09:02:34,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 09:02:34,152 INFO L225 Difference]: With dead ends: 2681 [2021-12-15 09:02:34,152 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 09:02:34,154 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 [2021-12-15 09:02:34,154 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 123 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 09:02:34,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 186 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 09:02:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 09:02:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 09:02:34,155 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) [2021-12-15 09:02:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 09:02:34,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2021-12-15 09:02:34,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 09:02:34,155 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 09:02:34,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 09:02:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 09:02:34,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 09:02:34,157 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 09:02:34,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 09:02:34,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-12-15 09:02:34,454 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,455 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,456 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-12-15 09:02:34,457 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,458 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-12-15 09:02:34,459 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-12-15 09:02:34,460 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,461 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-12-15 09:02:34,462 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-12-15 09:02:34,463 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,464 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-12-15 09:02:34,465 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-12-15 09:02:34,466 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-12-15 09:02:34,467 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,468 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-12-15 09:02:34,469 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-12-15 09:02:34,470 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse9 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse10 (= ~a11~0 1)) (.cse8 (<= ~a25~0 0))) (let ((.cse5 (<= 9 ~a28~0)) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a25~0 1)) (.cse0 (<= 8 ~a17~0)) (.cse7 (= ~a19~0 1)) (.cse6 (or (and .cse1 .cse9 .cse10) (and .cse1 .cse10 .cse8))) (.cse4 (<= ~a19~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse8) (and .cse3 .cse6) (and .cse0 .cse1 .cse9 .cse10) (and .cse0 .cse1 .cse9 .cse4 .cse8) (and .cse0 .cse1 .cse7 .cse3) (and .cse0 .cse1 .cse7 .cse10) (and .cse6 .cse4)))) [2021-12-15 09:02:34,470 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,470 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,470 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-12-15 09:02:34,470 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-12-15 09:02:34,470 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-12-15 09:02:34,471 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,472 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-12-15 09:02:34,473 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse9 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 8)) (.cse10 (= ~a11~0 1)) (.cse8 (<= ~a25~0 0))) (let ((.cse5 (<= 9 ~a28~0)) (.cse2 (<= ~a28~0 10)) (.cse3 (= ~a25~0 1)) (.cse0 (<= 8 ~a17~0)) (.cse7 (= ~a19~0 1)) (.cse6 (or (and .cse1 .cse9 .cse10) (and .cse1 .cse10 .cse8))) (.cse4 (<= ~a19~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse2 .cse6 .cse5) (and .cse0 .cse1 .cse7 .cse2 .cse8) (and .cse3 .cse6) (and .cse0 .cse1 .cse9 .cse10) (and .cse0 .cse1 .cse9 .cse4 .cse8) (and .cse0 .cse1 .cse7 .cse3) (and .cse0 .cse1 .cse7 .cse10) (and .cse6 .cse4)))) [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-12-15 09:02:34,474 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-12-15 09:02:34,475 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-12-15 09:02:34,476 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-12-15 09:02:34,477 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-12-15 09:02:34,478 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-12-15 09:02:34,479 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-12-15 09:02:34,479 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-12-15 09:02:34,479 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-12-15 09:02:34,479 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-12-15 09:02:34,481 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 09:02:34,483 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 09:02:34,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:02:34 BoogieIcfgContainer [2021-12-15 09:02:34,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 09:02:34,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 09:02:34,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 09:02:34,496 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 09:02:34,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:02:29" (3/4) ... [2021-12-15 09:02:34,499 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 09:02:34,511 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 09:02:34,512 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 09:02:34,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 09:02:34,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 09:02:34,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 09:02:34,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 09:02:34,589 INFO L158 Benchmark]: Toolchain (without parser) took 6491.50ms. Allocated memory was 96.5MB in the beginning and 188.7MB in the end (delta: 92.3MB). Free memory was 61.1MB in the beginning and 123.9MB in the end (delta: -62.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,589 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 09:02:34,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.73ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.82ms. Allocated memory is still 96.5MB. Free memory was 58.3MB in the beginning and 53.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,590 INFO L158 Benchmark]: Boogie Preprocessor took 62.01ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 48.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,590 INFO L158 Benchmark]: RCFGBuilder took 763.10ms. Allocated memory is still 96.5MB. Free memory was 48.2MB in the beginning and 67.9MB in the end (delta: -19.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,590 INFO L158 Benchmark]: TraceAbstraction took 5116.65ms. Allocated memory was 96.5MB in the beginning and 188.7MB in the end (delta: 92.3MB). Free memory was 67.9MB in the beginning and 138.6MB in the end (delta: -70.6MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,591 INFO L158 Benchmark]: Witness Printer took 92.26ms. Allocated memory is still 188.7MB. Free memory was 138.6MB in the beginning and 123.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 09:02:34,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 77.6MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.73ms. Allocated memory is still 96.5MB. Free memory was 60.8MB in the beginning and 58.3MB in the end (delta: 2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.82ms. Allocated memory is still 96.5MB. Free memory was 58.3MB in the beginning and 53.0MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.01ms. Allocated memory is still 96.5MB. Free memory was 53.0MB in the beginning and 48.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 763.10ms. Allocated memory is still 96.5MB. Free memory was 48.2MB in the beginning and 67.9MB in the end (delta: -19.7MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5116.65ms. Allocated memory was 96.5MB in the beginning and 188.7MB in the end (delta: 92.3MB). Free memory was 67.9MB in the beginning and 138.6MB in the end (delta: -70.6MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 92.26ms. Allocated memory is still 188.7MB. Free memory was 138.6MB in the beginning and 123.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 461]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1503 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1503 mSDsluCounter, 1385 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 590 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3553 IncrementalHoareTripleChecker+Invalid, 4143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 590 mSolverCounterUnsat, 1264 mSDtfsCounter, 3553 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1564occurred in iteration=5, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 427 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 339 HoareAnnotationTreeSize, 3 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 492 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1581 NumberOfCodeBlocks, 1581 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1569 ConstructedInterpolants, 0 QuantifiedInterpolants, 4123 SizeOfPredicates, 0 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 614/630 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((8 <= a17 && a17 <= 8) && a28 <= 10) && a25 == 1) && a19 <= 0) && 9 <= a28) || ((a28 <= 10 && (((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0))) && 9 <= a28)) || ((((8 <= a17 && a17 <= 8) && a19 == 1) && a28 <= 10) && a25 <= 0)) || (a25 == 1 && (((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0)))) || (((8 <= a17 && a17 <= 8) && a28 <= 9) && a11 == 1)) || ((((8 <= a17 && a17 <= 8) && a28 <= 9) && a19 <= 0) && a25 <= 0)) || (((8 <= a17 && a17 <= 8) && a19 == 1) && a25 == 1)) || (((8 <= a17 && a17 <= 8) && a19 == 1) && a11 == 1)) || ((((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0)) && a19 <= 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((8 <= a17 && a17 <= 8) && a28 <= 10) && a25 == 1) && a19 <= 0) && 9 <= a28) || ((a28 <= 10 && (((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0))) && 9 <= a28)) || ((((8 <= a17 && a17 <= 8) && a19 == 1) && a28 <= 10) && a25 <= 0)) || (a25 == 1 && (((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0)))) || (((8 <= a17 && a17 <= 8) && a28 <= 9) && a11 == 1)) || ((((8 <= a17 && a17 <= 8) && a28 <= 9) && a19 <= 0) && a25 <= 0)) || (((8 <= a17 && a17 <= 8) && a19 == 1) && a25 == 1)) || (((8 <= a17 && a17 <= 8) && a19 == 1) && a11 == 1)) || ((((a17 <= 8 && a28 <= 9) && a11 == 1) || ((a17 <= 8 && a11 == 1) && a25 <= 0)) && a19 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 09:02:34,640 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