./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label17.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 eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 23:59:18,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 23:59:18,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 23:59:18,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 23:59:18,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 23:59:18,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 23:59:18,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 23:59:18,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 23:59:18,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 23:59:18,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 23:59:18,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 23:59:18,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 23:59:18,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 23:59:18,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 23:59:18,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 23:59:18,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 23:59:18,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 23:59:18,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 23:59:18,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 23:59:18,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 23:59:18,185 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 23:59:18,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 23:59:18,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 23:59:18,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 23:59:18,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 23:59:18,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 23:59:18,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 23:59:18,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 23:59:18,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 23:59:18,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 23:59:18,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 23:59:18,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 23:59:18,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 23:59:18,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 23:59:18,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 23:59:18,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 23:59:18,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 23:59:18,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 23:59:18,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 23:59:18,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 23:59:18,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 23:59:18,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 23:59:18,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 23:59:18,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 23:59:18,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 23:59:18,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 23:59:18,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 23:59:18,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 23:59:18,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 23:59:18,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 23:59:18,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 23:59:18,252 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 23:59:18,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 23:59:18,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 23:59:18,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 23:59:18,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 23:59:18,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 23:59:18,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 23:59:18,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 23:59:18,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 23:59:18,260 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 23:59:18,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 23:59:18,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 23:59:18,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 23:59:18,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 23:59:18,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 23:59:18,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 23:59:18,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 23:59:18,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 23:59:18,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 23:59:18,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 23:59:18,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 23:59:18,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 23:59:18,263 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 23:59:18,263 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 23:59:18,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 23:59:18,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eca4fa24c7d17d702b457b7d1d0ed6513492942e324299a6e335f63078cc8b55 [2022-07-20 23:59:18,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 23:59:18,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 23:59:18,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 23:59:18,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 23:59:18,620 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 23:59:18,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2022-07-20 23:59:18,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8035df41b/4e3fa6cb1b634cb5b068f4f007258d1b/FLAG2950e02bd [2022-07-20 23:59:19,260 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 23:59:19,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label17.c [2022-07-20 23:59:19,278 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8035df41b/4e3fa6cb1b634cb5b068f4f007258d1b/FLAG2950e02bd [2022-07-20 23:59:19,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8035df41b/4e3fa6cb1b634cb5b068f4f007258d1b [2022-07-20 23:59:19,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 23:59:19,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 23:59:19,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 23:59:19,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 23:59:19,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 23:59:19,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:59:19" (1/1) ... [2022-07-20 23:59:19,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398e687f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:19, skipping insertion in model container [2022-07-20 23:59:19,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:59:19" (1/1) ... [2022-07-20 23:59:19,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 23:59:19,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 23:59:19,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2022-07-20 23:59:19,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 23:59:19,968 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 23:59:19,991 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label17.c[5746,5759] [2022-07-20 23:59:20,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 23:59:20,123 INFO L208 MainTranslator]: Completed translation [2022-07-20 23:59:20,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20 WrapperNode [2022-07-20 23:59:20,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 23:59:20,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 23:59:20,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 23:59:20,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 23:59:20,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,224 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-07-20 23:59:20,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 23:59:20,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 23:59:20,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 23:59:20,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 23:59:20,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 23:59:20,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 23:59:20,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 23:59:20,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 23:59:20,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (1/1) ... [2022-07-20 23:59:20,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 23:59:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:20,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 23:59:20,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 23:59:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 23:59:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 23:59:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 23:59:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 23:59:20,449 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 23:59:20,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 23:59:21,428 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 23:59:21,439 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 23:59:21,439 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 23:59:21,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:59:21 BoogieIcfgContainer [2022-07-20 23:59:21,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 23:59:21,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 23:59:21,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 23:59:21,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 23:59:21,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:59:19" (1/3) ... [2022-07-20 23:59:21,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754c81e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:59:21, skipping insertion in model container [2022-07-20 23:59:21,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:59:20" (2/3) ... [2022-07-20 23:59:21,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754c81e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:59:21, skipping insertion in model container [2022-07-20 23:59:21,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:59:21" (3/3) ... [2022-07-20 23:59:21,446 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label17.c [2022-07-20 23:59:21,458 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 23:59:21,459 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 23:59:21,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 23:59:21,532 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@14260d19, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38dc25ab [2022-07-20 23:59:21,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 23:59:21,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:21,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-20 23:59:21,556 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:21,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:21,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:21,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:21,561 INFO L85 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2022-07-20 23:59:21,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:21,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439442092] [2022-07-20 23:59:21,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:21,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:59:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439442092] [2022-07-20 23:59:21,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439442092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:21,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:21,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 23:59:21,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302319355] [2022-07-20 23:59:21,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:21,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:21,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:21,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:21,893 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:22,809 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2022-07-20 23:59:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-07-20 23:59:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:22,823 INFO L225 Difference]: With dead ends: 669 [2022-07-20 23:59:22,824 INFO L226 Difference]: Without dead ends: 360 [2022-07-20 23:59:22,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:22,830 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 154 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:22,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 94 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-20 23:59:22,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-07-20 23:59:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-07-20 23:59:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.5208913649025069) internal successors, (546), 359 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:22,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2022-07-20 23:59:22,891 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 56 [2022-07-20 23:59:22,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:22,891 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2022-07-20 23:59:22,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:22,892 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2022-07-20 23:59:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-20 23:59:22,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:22,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:22,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 23:59:22,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:22,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 448247055, now seen corresponding path program 1 times [2022-07-20 23:59:22,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:22,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880075877] [2022-07-20 23:59:22,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:23,059 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:59:23,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880075877] [2022-07-20 23:59:23,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880075877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:23,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:23,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 23:59:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007133873] [2022-07-20 23:59:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:23,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:23,070 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:23,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:23,754 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2022-07-20 23:59:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:23,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2022-07-20 23:59:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:23,758 INFO L225 Difference]: With dead ends: 1074 [2022-07-20 23:59:23,759 INFO L226 Difference]: Without dead ends: 716 [2022-07-20 23:59:23,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:23,761 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 122 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:23,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 95 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-20 23:59:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-20 23:59:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-20 23:59:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:23,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2022-07-20 23:59:23,794 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 131 [2022-07-20 23:59:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:23,797 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2022-07-20 23:59:23,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:23,797 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2022-07-20 23:59:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-20 23:59:23,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:23,806 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:23,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 23:59:23,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:23,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash -596921339, now seen corresponding path program 1 times [2022-07-20 23:59:23,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:23,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552769965] [2022-07-20 23:59:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:23,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 23:59:23,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:23,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552769965] [2022-07-20 23:59:23,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552769965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:23,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:23,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:23,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750610588] [2022-07-20 23:59:23,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:23,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 23:59:23,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:23,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 23:59:23,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:59:23,960 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:24,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:24,900 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2022-07-20 23:59:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 23:59:24,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-07-20 23:59:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:24,905 INFO L225 Difference]: With dead ends: 1964 [2022-07-20 23:59:24,906 INFO L226 Difference]: Without dead ends: 1250 [2022-07-20 23:59:24,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 23:59:24,908 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:24,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 121 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 23:59:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-07-20 23:59:24,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2022-07-20 23:59:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1249 states have (on average 1.2361889511609288) internal successors, (1544), 1249 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2022-07-20 23:59:24,931 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 135 [2022-07-20 23:59:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:24,931 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2022-07-20 23:59:24,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2022-07-20 23:59:24,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-07-20 23:59:24,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:24,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 23:59:24,934 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:24,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -452523719, now seen corresponding path program 1 times [2022-07-20 23:59:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:24,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761933372] [2022-07-20 23:59:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:24,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-20 23:59:25,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:25,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761933372] [2022-07-20 23:59:25,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761933372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:25,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:25,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:25,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402523022] [2022-07-20 23:59:25,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:25,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 23:59:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 23:59:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:59:25,091 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:25,773 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2022-07-20 23:59:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 23:59:25,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2022-07-20 23:59:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:25,780 INFO L225 Difference]: With dead ends: 2705 [2022-07-20 23:59:25,781 INFO L226 Difference]: Without dead ends: 1606 [2022-07-20 23:59:25,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:59:25,783 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:25,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 23:59:25,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-07-20 23:59:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2022-07-20 23:59:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1221183800623054) internal successors, (1801), 1605 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2022-07-20 23:59:25,811 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 215 [2022-07-20 23:59:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:25,812 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2022-07-20 23:59:25,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2022-07-20 23:59:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-07-20 23:59:25,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:25,815 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:25,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 23:59:25,816 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:25,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:25,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1042976344, now seen corresponding path program 1 times [2022-07-20 23:59:25,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:25,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003203655] [2022-07-20 23:59:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:25,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 209 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-07-20 23:59:26,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:26,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003203655] [2022-07-20 23:59:26,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003203655] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:26,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456691387] [2022-07-20 23:59:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:26,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:26,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:26,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:26,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 23:59:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:26,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:26,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-07-20 23:59:26,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:26,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456691387] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:26,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:26,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-20 23:59:26,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574743207] [2022-07-20 23:59:26,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:26,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:26,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:26,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:26,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:26,695 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:27,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:27,196 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2022-07-20 23:59:27,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:27,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 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 342 [2022-07-20 23:59:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:27,205 INFO L225 Difference]: With dead ends: 3388 [2022-07-20 23:59:27,207 INFO L226 Difference]: Without dead ends: 1962 [2022-07-20 23:59:27,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:27,211 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:27,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-07-20 23:59:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-07-20 23:59:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1318003365114975) internal successors, (2018), 1783 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:27,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2022-07-20 23:59:27,246 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 342 [2022-07-20 23:59:27,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:27,247 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2022-07-20 23:59:27,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:27,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2022-07-20 23:59:27,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2022-07-20 23:59:27,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:27,251 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:27,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-20 23:59:27,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:27,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:27,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash 246905886, now seen corresponding path program 1 times [2022-07-20 23:59:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:27,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834189015] [2022-07-20 23:59:27,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-07-20 23:59:27,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:27,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834189015] [2022-07-20 23:59:27,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834189015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:27,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:27,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:27,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307581468] [2022-07-20 23:59:27,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:27,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:27,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:27,652 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:28,134 INFO L93 Difference]: Finished difference Result 3744 states and 4282 transitions. [2022-07-20 23:59:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 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 346 [2022-07-20 23:59:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:28,142 INFO L225 Difference]: With dead ends: 3744 [2022-07-20 23:59:28,142 INFO L226 Difference]: Without dead ends: 2140 [2022-07-20 23:59:28,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:28,145 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 101 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:28,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 77 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:28,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-20 23:59:28,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2022-07-20 23:59:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.1280972417017299) internal successors, (2413), 2139 states have internal predecessors, (2413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2413 transitions. [2022-07-20 23:59:28,181 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2413 transitions. Word has length 346 [2022-07-20 23:59:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:28,182 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2413 transitions. [2022-07-20 23:59:28,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2413 transitions. [2022-07-20 23:59:28,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-07-20 23:59:28,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:28,187 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-07-20 23:59:28,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 23:59:28,187 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:28,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:28,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1148447004, now seen corresponding path program 1 times [2022-07-20 23:59:28,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:28,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430612350] [2022-07-20 23:59:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:28,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-20 23:59:28,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:28,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430612350] [2022-07-20 23:59:28,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430612350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:28,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:28,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:28,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345445701] [2022-07-20 23:59:28,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:28,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:28,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:28,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:28,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:28,348 INFO L87 Difference]: Start difference. First operand 2140 states and 2413 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:28,861 INFO L93 Difference]: Finished difference Result 4634 states and 5295 transitions. [2022-07-20 23:59:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2022-07-20 23:59:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:28,870 INFO L225 Difference]: With dead ends: 4634 [2022-07-20 23:59:28,870 INFO L226 Difference]: Without dead ends: 2674 [2022-07-20 23:59:28,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:28,875 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 125 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:28,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 258 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-07-20 23:59:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2022-07-20 23:59:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.1208380097268986) internal successors, (2996), 2673 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2996 transitions. [2022-07-20 23:59:28,939 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2996 transitions. Word has length 373 [2022-07-20 23:59:28,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:28,940 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 2996 transitions. [2022-07-20 23:59:28,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:28,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2996 transitions. [2022-07-20 23:59:28,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-20 23:59:28,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:28,946 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:28,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 23:59:28,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1347609353, now seen corresponding path program 1 times [2022-07-20 23:59:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:28,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880706016] [2022-07-20 23:59:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-20 23:59:29,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:29,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880706016] [2022-07-20 23:59:29,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880706016] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:29,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391690106] [2022-07-20 23:59:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:29,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:29,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:29,120 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:29,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 23:59:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:29,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:29,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-20 23:59:29,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:29,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391690106] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:29,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:29,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-20 23:59:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656742220] [2022-07-20 23:59:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:29,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:29,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:29,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:29,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 23:59:29,360 INFO L87 Difference]: Start difference. First operand 2674 states and 2996 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:29,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:29,883 INFO L93 Difference]: Finished difference Result 6236 states and 7081 transitions. [2022-07-20 23:59:29,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 380 [2022-07-20 23:59:29,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:29,897 INFO L225 Difference]: With dead ends: 6236 [2022-07-20 23:59:29,897 INFO L226 Difference]: Without dead ends: 3742 [2022-07-20 23:59:29,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-20 23:59:29,902 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 138 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:29,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 58 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:29,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-07-20 23:59:29,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2022-07-20 23:59:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.1242983159583) internal successors, (4206), 3741 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4206 transitions. [2022-07-20 23:59:29,984 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4206 transitions. Word has length 380 [2022-07-20 23:59:29,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:29,985 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4206 transitions. [2022-07-20 23:59:29,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:29,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4206 transitions. [2022-07-20 23:59:29,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-07-20 23:59:29,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:29,991 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:30,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-20 23:59:30,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:30,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1274381579, now seen corresponding path program 1 times [2022-07-20 23:59:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:30,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066552085] [2022-07-20 23:59:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:30,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:30,367 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2022-07-20 23:59:30,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:30,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066552085] [2022-07-20 23:59:30,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066552085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:30,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:30,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:30,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946057644] [2022-07-20 23:59:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:30,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 23:59:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 23:59:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:59:30,370 INFO L87 Difference]: Start difference. First operand 3742 states and 4206 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:30,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:30,948 INFO L93 Difference]: Finished difference Result 7540 states and 8485 transitions. [2022-07-20 23:59:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 23:59:30,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 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 455 [2022-07-20 23:59:30,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:30,961 INFO L225 Difference]: With dead ends: 7540 [2022-07-20 23:59:30,962 INFO L226 Difference]: Without dead ends: 3920 [2022-07-20 23:59:30,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 23:59:30,969 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:30,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:30,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-07-20 23:59:31,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2022-07-20 23:59:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.083132852178562) internal successors, (4052), 3741 states have internal predecessors, (4052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4052 transitions. [2022-07-20 23:59:31,046 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4052 transitions. Word has length 455 [2022-07-20 23:59:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:31,047 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4052 transitions. [2022-07-20 23:59:31,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4052 transitions. [2022-07-20 23:59:31,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-07-20 23:59:31,054 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:31,054 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:31,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 23:59:31,055 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:31,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1801199018, now seen corresponding path program 1 times [2022-07-20 23:59:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:31,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631425324] [2022-07-20 23:59:31,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:31,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 520 proven. 11 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-20 23:59:31,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:31,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631425324] [2022-07-20 23:59:31,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631425324] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:31,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624147827] [2022-07-20 23:59:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:31,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:31,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:31,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:31,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 23:59:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:31,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:31,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:31,515 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-07-20 23:59:31,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:31,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624147827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:31,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:31,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 23:59:31,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680084393] [2022-07-20 23:59:31,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:31,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:31,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:31,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:31,529 INFO L87 Difference]: Start difference. First operand 3742 states and 4052 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:31,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:31,990 INFO L93 Difference]: Finished difference Result 7304 states and 7923 transitions. [2022-07-20 23:59:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:31,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 481 [2022-07-20 23:59:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:32,004 INFO L225 Difference]: With dead ends: 7304 [2022-07-20 23:59:32,004 INFO L226 Difference]: Without dead ends: 3742 [2022-07-20 23:59:32,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:32,010 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 136 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:32,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 214 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:32,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-07-20 23:59:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2022-07-20 23:59:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0737770649558942) internal successors, (4017), 3741 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4017 transitions. [2022-07-20 23:59:32,075 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4017 transitions. Word has length 481 [2022-07-20 23:59:32,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:32,076 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4017 transitions. [2022-07-20 23:59:32,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4017 transitions. [2022-07-20 23:59:32,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2022-07-20 23:59:32,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:32,082 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:32,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:32,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:32,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:32,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:32,308 INFO L85 PathProgramCache]: Analyzing trace with hash 120362576, now seen corresponding path program 1 times [2022-07-20 23:59:32,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:32,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718865979] [2022-07-20 23:59:32,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:32,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:32,514 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-07-20 23:59:32,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718865979] [2022-07-20 23:59:32,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718865979] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:32,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:32,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:32,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057249504] [2022-07-20 23:59:32,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:32,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:32,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:32,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:32,517 INFO L87 Difference]: Start difference. First operand 3742 states and 4017 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:33,016 INFO L93 Difference]: Finished difference Result 7660 states and 8277 transitions. [2022-07-20 23:59:33,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 535 [2022-07-20 23:59:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:33,034 INFO L225 Difference]: With dead ends: 7660 [2022-07-20 23:59:33,035 INFO L226 Difference]: Without dead ends: 4098 [2022-07-20 23:59:33,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:33,039 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 126 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:33,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 61 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:33,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-07-20 23:59:33,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2022-07-20 23:59:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0785940932389553) internal successors, (4419), 4097 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4419 transitions. [2022-07-20 23:59:33,108 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4419 transitions. Word has length 535 [2022-07-20 23:59:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:33,109 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 4419 transitions. [2022-07-20 23:59:33,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4419 transitions. [2022-07-20 23:59:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-07-20 23:59:33,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:33,115 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:33,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 23:59:33,115 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:33,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1311829144, now seen corresponding path program 1 times [2022-07-20 23:59:33,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:33,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703800564] [2022-07-20 23:59:33,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:33,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 463 proven. 68 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-07-20 23:59:33,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:33,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703800564] [2022-07-20 23:59:33,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703800564] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245790537] [2022-07-20 23:59:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:33,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:33,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:33,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:33,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 23:59:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:33,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:33,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:34,092 INFO L134 CoverageAnalysis]: Checked inductivity of 845 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 845 trivial. 0 not checked. [2022-07-20 23:59:34,092 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:34,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245790537] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:34,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:34,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-20 23:59:34,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052968565] [2022-07-20 23:59:34,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:34,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:34,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:34,097 INFO L87 Difference]: Start difference. First operand 4098 states and 4419 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:34,581 INFO L93 Difference]: Finished difference Result 5168 states and 5590 transitions. [2022-07-20 23:59:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:34,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 546 [2022-07-20 23:59:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:34,598 INFO L225 Difference]: With dead ends: 5168 [2022-07-20 23:59:34,603 INFO L226 Difference]: Without dead ends: 5166 [2022-07-20 23:59:34,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:34,606 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:34,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-20 23:59:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-07-20 23:59:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4276. [2022-07-20 23:59:34,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2022-07-20 23:59:34,703 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 546 [2022-07-20 23:59:34,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:34,704 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2022-07-20 23:59:34,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2022-07-20 23:59:34,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2022-07-20 23:59:34,713 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:34,714 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:34,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:34,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:34,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:34,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash 538602375, now seen corresponding path program 1 times [2022-07-20 23:59:34,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:34,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86742111] [2022-07-20 23:59:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:34,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:35,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 943 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-20 23:59:35,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:35,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86742111] [2022-07-20 23:59:35,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86742111] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:35,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865494187] [2022-07-20 23:59:35,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:35,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:35,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:35,175 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:35,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 23:59:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:35,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:35,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1322 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1053 trivial. 0 not checked. [2022-07-20 23:59:35,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:35,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865494187] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:35,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:35,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 23:59:35,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376819989] [2022-07-20 23:59:35,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:35,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:35,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:35,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:35,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:35,430 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:35,861 INFO L93 Difference]: Finished difference Result 5702 states and 6165 transitions. [2022-07-20 23:59:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 588 [2022-07-20 23:59:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:35,886 INFO L225 Difference]: With dead ends: 5702 [2022-07-20 23:59:35,890 INFO L226 Difference]: Without dead ends: 5700 [2022-07-20 23:59:35,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:35,893 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:35,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-20 23:59:35,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 4276. [2022-07-20 23:59:35,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2022-07-20 23:59:35,963 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 588 [2022-07-20 23:59:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:35,964 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2022-07-20 23:59:35,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2022-07-20 23:59:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2022-07-20 23:59:35,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:35,971 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-07-20 23:59:35,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:36,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-20 23:59:36,192 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1811126405, now seen corresponding path program 1 times [2022-07-20 23:59:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:36,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241790990] [2022-07-20 23:59:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:36,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-20 23:59:36,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:36,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241790990] [2022-07-20 23:59:36,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241790990] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:36,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101032354] [2022-07-20 23:59:36,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:36,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:36,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:36,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:36,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 23:59:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:36,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 23:59:36,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:36,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2022-07-20 23:59:36,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:36,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101032354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:36,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:36,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 23:59:36,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320041880] [2022-07-20 23:59:36,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:36,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:36,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:36,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:36,694 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:37,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:37,133 INFO L93 Difference]: Finished difference Result 5524 states and 5971 transitions. [2022-07-20 23:59:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:37,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 619 [2022-07-20 23:59:37,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:37,150 INFO L225 Difference]: With dead ends: 5524 [2022-07-20 23:59:37,151 INFO L226 Difference]: Without dead ends: 5522 [2022-07-20 23:59:37,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:37,153 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:37,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-20 23:59:37,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4276. [2022-07-20 23:59:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4275 states have (on average 1.08093567251462) internal successors, (4621), 4275 states have internal predecessors, (4621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4621 transitions. [2022-07-20 23:59:37,219 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4621 transitions. Word has length 619 [2022-07-20 23:59:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:37,220 INFO L495 AbstractCegarLoop]: Abstraction has 4276 states and 4621 transitions. [2022-07-20 23:59:37,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4621 transitions. [2022-07-20 23:59:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-07-20 23:59:37,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:37,229 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:37,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:37,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:37,449 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:37,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1748481757, now seen corresponding path program 1 times [2022-07-20 23:59:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:37,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993863707] [2022-07-20 23:59:37,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:37,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:37,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 944 proven. 11 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2022-07-20 23:59:37,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:37,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993863707] [2022-07-20 23:59:37,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993863707] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:37,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101678115] [2022-07-20 23:59:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:37,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:37,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:37,706 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:37,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-20 23:59:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:37,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 23:59:37,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1323 backedges. 639 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-07-20 23:59:38,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 23:59:38,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101678115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:38,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 23:59:38,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-20 23:59:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039596370] [2022-07-20 23:59:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:38,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:38,331 INFO L87 Difference]: Start difference. First operand 4276 states and 4621 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:38,755 INFO L93 Difference]: Finished difference Result 9440 states and 10230 transitions. [2022-07-20 23:59:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:38,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 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 628 [2022-07-20 23:59:38,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:38,764 INFO L225 Difference]: With dead ends: 9440 [2022-07-20 23:59:38,764 INFO L226 Difference]: Without dead ends: 5344 [2022-07-20 23:59:38,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:38,769 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 78 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:38,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-07-20 23:59:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2022-07-20 23:59:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0758001122964627) internal successors, (5748), 5343 states have internal predecessors, (5748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:38,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5748 transitions. [2022-07-20 23:59:38,853 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5748 transitions. Word has length 628 [2022-07-20 23:59:38,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:38,854 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5748 transitions. [2022-07-20 23:59:38,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5748 transitions. [2022-07-20 23:59:38,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2022-07-20 23:59:38,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:38,864 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2022-07-20 23:59:38,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:39,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:39,088 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:39,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:39,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1282632347, now seen corresponding path program 1 times [2022-07-20 23:59:39,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:39,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507005942] [2022-07-20 23:59:39,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:39,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 1191 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-07-20 23:59:39,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:39,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507005942] [2022-07-20 23:59:39,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507005942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:39,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:39,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:39,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403598466] [2022-07-20 23:59:39,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:39,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:39,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:39,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:39,286 INFO L87 Difference]: Start difference. First operand 5344 states and 5748 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:39,715 INFO L93 Difference]: Finished difference Result 10864 states and 11694 transitions. [2022-07-20 23:59:39,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:39,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 697 [2022-07-20 23:59:39,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:39,725 INFO L225 Difference]: With dead ends: 10864 [2022-07-20 23:59:39,725 INFO L226 Difference]: Without dead ends: 5700 [2022-07-20 23:59:39,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:39,731 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:39,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-20 23:59:39,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5166. [2022-07-20 23:59:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0772507260406583) internal successors, (5564), 5165 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5564 transitions. [2022-07-20 23:59:39,824 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5564 transitions. Word has length 697 [2022-07-20 23:59:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:39,824 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5564 transitions. [2022-07-20 23:59:39,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5564 transitions. [2022-07-20 23:59:39,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2022-07-20 23:59:39,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:39,835 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:39,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-20 23:59:39,835 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:39,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1285598144, now seen corresponding path program 1 times [2022-07-20 23:59:39,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:39,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358795579] [2022-07-20 23:59:39,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:39,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1730 backedges. 1200 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-07-20 23:59:40,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:40,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358795579] [2022-07-20 23:59:40,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358795579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:40,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:40,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:40,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125273900] [2022-07-20 23:59:40,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:40,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:40,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:40,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:40,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:40,004 INFO L87 Difference]: Start difference. First operand 5166 states and 5564 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:40,476 INFO L93 Difference]: Finished difference Result 11220 states and 12115 transitions. [2022-07-20 23:59:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 704 [2022-07-20 23:59:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:40,488 INFO L225 Difference]: With dead ends: 11220 [2022-07-20 23:59:40,488 INFO L226 Difference]: Without dead ends: 6234 [2022-07-20 23:59:40,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:40,495 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 114 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:40,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 201 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2022-07-20 23:59:40,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5522. [2022-07-20 23:59:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0597717804745517) internal successors, (5851), 5521 states have internal predecessors, (5851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:40,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5851 transitions. [2022-07-20 23:59:40,619 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5851 transitions. Word has length 704 [2022-07-20 23:59:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:40,620 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5851 transitions. [2022-07-20 23:59:40,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:40,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5851 transitions. [2022-07-20 23:59:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2022-07-20 23:59:40,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:40,631 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:40,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-20 23:59:40,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1250623350, now seen corresponding path program 1 times [2022-07-20 23:59:40,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:40,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418977472] [2022-07-20 23:59:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:40,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2237 backedges. 1638 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2022-07-20 23:59:40,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:40,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418977472] [2022-07-20 23:59:40,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418977472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 23:59:40,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 23:59:40,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 23:59:40,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427526695] [2022-07-20 23:59:40,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 23:59:40,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 23:59:40,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 23:59:40,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:40,841 INFO L87 Difference]: Start difference. First operand 5522 states and 5851 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:41,267 INFO L93 Difference]: Finished difference Result 10864 states and 11521 transitions. [2022-07-20 23:59:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 23:59:41,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 781 [2022-07-20 23:59:41,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:41,276 INFO L225 Difference]: With dead ends: 10864 [2022-07-20 23:59:41,276 INFO L226 Difference]: Without dead ends: 5522 [2022-07-20 23:59:41,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 23:59:41,282 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 102 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:41,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 243 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 23:59:41,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-20 23:59:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2022-07-20 23:59:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0567097136440202) internal successors, (5646), 5343 states have internal predecessors, (5646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5646 transitions. [2022-07-20 23:59:41,363 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5646 transitions. Word has length 781 [2022-07-20 23:59:41,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:41,365 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5646 transitions. [2022-07-20 23:59:41,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:41,366 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5646 transitions. [2022-07-20 23:59:41,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2022-07-20 23:59:41,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 23:59:41,382 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-20 23:59:41,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-20 23:59:41,382 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 23:59:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 23:59:41,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2118539318, now seen corresponding path program 1 times [2022-07-20 23:59:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 23:59:41,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883880652] [2022-07-20 23:59:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:41,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 23:59:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-07-20 23:59:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 23:59:41,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883880652] [2022-07-20 23:59:41,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883880652] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 23:59:41,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668312352] [2022-07-20 23:59:41,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 23:59:41,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:41,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 23:59:41,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 23:59:41,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-20 23:59:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 23:59:41,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-20 23:59:41,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 23:59:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-07-20 23:59:42,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 23:59:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2666 backedges. 2026 proven. 110 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2022-07-20 23:59:42,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668312352] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 23:59:42,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 23:59:42,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-20 23:59:42,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809508263] [2022-07-20 23:59:42,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 23:59:42,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 23:59:42,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 23:59:42,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 23:59:42,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:42,551 INFO L87 Difference]: Start difference. First operand 5344 states and 5646 transitions. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 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) [2022-07-20 23:59:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 23:59:43,470 INFO L93 Difference]: Finished difference Result 12286 states and 13001 transitions. [2022-07-20 23:59:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 23:59:43,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 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) Word has length 900 [2022-07-20 23:59:43,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 23:59:43,471 INFO L225 Difference]: With dead ends: 12286 [2022-07-20 23:59:43,471 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 23:59:43,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1802 GetRequests, 1798 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-20 23:59:43,480 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 216 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-20 23:59:43,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 68 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-20 23:59:43,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 23:59:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 23:59:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 23:59:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 23:59:43,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 900 [2022-07-20 23:59:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 23:59:43,482 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 23:59:43,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 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) [2022-07-20 23:59:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 23:59:43,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 23:59:43,488 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 23:59:43,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-20 23:59:43,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 23:59:43,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,027 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,028 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-07-20 23:59:45,029 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-20 23:59:45,030 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-20 23:59:45,031 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,032 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-07-20 23:59:45,033 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-07-20 23:59:45,034 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-20 23:59:45,035 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,036 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-07-20 23:59:45,037 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-20 23:59:45,038 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-20 23:59:45,039 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-07-20 23:59:45,040 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-20 23:59:45,041 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-20 23:59:45,042 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,043 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-07-20 23:59:45,044 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-20 23:59:45,045 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-20 23:59:45,046 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,047 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,048 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-07-20 23:59:45,049 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse1 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse3 (+ ~a12~0 43))) (or (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a21~0 8)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a21~0 7) .cse2) (and .cse0 (<= 9 ~a15~0) (< 0 .cse3)) (and (<= 6 ~a15~0) .cse0 .cse1) (and .cse0 (not (<= .cse3 0)) (not (< 80 ~a12~0))))) [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-20 23:59:45,050 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-07-20 23:59:45,051 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 23:59:45,052 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,053 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= (+ 49 ~a12~0) 0)) (.cse1 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse3 (+ ~a12~0 43))) (or (and .cse0 (<= 10 ~a21~0)) (and .cse0 (<= ~a21~0 8)) (and .cse0 .cse1 .cse2) (and .cse1 (<= ~a21~0 7) .cse2) (and .cse0 (<= 9 ~a15~0) (< 0 .cse3)) (and (<= 6 ~a15~0) .cse0 .cse1) (and .cse0 (not (<= .cse3 0)) (not (< 80 ~a12~0))))) [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-20 23:59:45,054 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-07-20 23:59:45,055 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-07-20 23:59:45,056 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-20 23:59:45,056 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-20 23:59:45,056 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-20 23:59:45,059 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 23:59:45,061 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 23:59:45,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:59:45 BoogieIcfgContainer [2022-07-20 23:59:45,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 23:59:45,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 23:59:45,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 23:59:45,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 23:59:45,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:59:21" (3/4) ... [2022-07-20 23:59:45,079 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 23:59:45,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-20 23:59:45,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 23:59:45,098 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 23:59:45,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 23:59:45,204 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 23:59:45,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 23:59:45,205 INFO L158 Benchmark]: Toolchain (without parser) took 25668.11ms. Allocated memory was 54.5MB in the beginning and 438.3MB in the end (delta: 383.8MB). Free memory was 29.8MB in the beginning and 224.5MB in the end (delta: -194.8MB). Peak memory consumption was 187.4MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,205 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 23:59:45,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.69ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 44.9MB in the end (delta: -15.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.46ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 35.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,207 INFO L158 Benchmark]: Boogie Preprocessor took 84.58ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 42.5MB in the end (delta: -7.2MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,207 INFO L158 Benchmark]: RCFGBuilder took 1129.00ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 42.2MB in the beginning and 34.1MB in the end (delta: 8.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,207 INFO L158 Benchmark]: TraceAbstraction took 23634.11ms. Allocated memory was 83.9MB in the beginning and 438.3MB in the end (delta: 354.4MB). Free memory was 33.5MB in the beginning and 237.1MB in the end (delta: -203.6MB). Peak memory consumption was 285.6MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,208 INFO L158 Benchmark]: Witness Printer took 127.86ms. Allocated memory is still 438.3MB. Free memory was 237.1MB in the beginning and 224.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-20 23:59:45,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.69ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.6MB in the beginning and 44.9MB in the end (delta: -15.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.46ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 35.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.58ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 42.5MB in the end (delta: -7.2MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1129.00ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 42.2MB in the beginning and 34.1MB in the end (delta: 8.1MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 23634.11ms. Allocated memory was 83.9MB in the beginning and 438.3MB in the end (delta: 354.4MB). Free memory was 33.5MB in the beginning and 237.1MB in the end (delta: -203.6MB). Peak memory consumption was 285.6MB. Max. memory is 16.1GB. * Witness Printer took 127.86ms. Allocated memory is still 438.3MB. Free memory was 237.1MB in the beginning and 224.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 182]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.6s, OverallIterations: 19, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2580 SdHoareTripleChecker+Valid, 9.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2580 mSDsluCounter, 2001 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 1140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10182 IncrementalHoareTripleChecker+Invalid, 11322 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1140 mSolverCounterUnsat, 1893 mSDtfsCounter, 10182 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5438 GetRequests, 5392 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5522occurred in iteration=17, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 5340 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 91 NumberOfFragments, 151 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1942 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7186 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 13396 NumberOfCodeBlocks, 13396 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 14268 ConstructedInterpolants, 0 QuantifiedInterpolants, 57110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5763 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 28 InterpolantComputations, 18 PerfectInterpolantSequences, 28866/29588 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && 10 <= a21) || (a24 == 1 && a21 <= 8)) || ((a24 == 1 && a15 <= 8) && 49 + a12 <= 0)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 9 <= a15) && 0 < a12 + 43)) || ((6 <= a15 && a24 == 1) && a15 <= 8)) || ((a24 == 1 && !(a12 + 43 <= 0)) && !(80 < a12)) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((a24 == 1 && 10 <= a21) || (a24 == 1 && a21 <= 8)) || ((a24 == 1 && a15 <= 8) && 49 + a12 <= 0)) || ((a15 <= 8 && a21 <= 7) && 49 + a12 <= 0)) || ((a24 == 1 && 9 <= a15) && 0 < a12 + 43)) || ((6 <= a15 && a24 == 1) && a15 <= 8)) || ((a24 == 1 && !(a12 + 43 <= 0)) && !(80 < a12)) RESULT: Ultimate proved your program to be correct! [2022-07-20 23:59:45,246 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