./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label51.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 39ef6d062a4ff56ba1e3913ade729d3f60e638b9dea34b0ea6935ef8cddd75d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 11:22:42,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 11:22:42,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 11:22:42,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 11:22:42,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 11:22:42,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 11:22:42,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 11:22:42,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 11:22:42,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 11:22:42,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 11:22:42,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 11:22:42,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 11:22:42,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 11:22:42,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 11:22:42,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 11:22:42,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 11:22:42,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 11:22:42,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 11:22:42,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 11:22:42,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 11:22:42,422 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 11:22:42,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 11:22:42,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 11:22:42,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 11:22:42,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 11:22:42,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 11:22:42,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 11:22:42,431 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 11:22:42,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 11:22:42,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 11:22:42,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 11:22:42,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 11:22:42,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 11:22:42,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 11:22:42,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 11:22:42,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 11:22:42,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 11:22:42,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 11:22:42,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 11:22:42,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 11:22:42,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 11:22:42,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 11:22:42,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 11:22:42,475 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 11:22:42,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 11:22:42,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 11:22:42,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 11:22:42,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 11:22:42,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 11:22:42,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 11:22:42,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 11:22:42,478 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 11:22:42,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 11:22:42,479 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 11:22:42,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 11:22:42,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 11:22:42,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 11:22:42,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 11:22:42,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 11:22:42,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 11:22:42,480 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 11:22:42,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 11:22:42,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 11:22:42,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 11:22:42,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 11:22:42,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 11:22:42,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 11:22:42,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:22:42,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 11:22:42,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 11:22:42,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 11:22:42,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 11:22:42,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 11:22:42,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 11:22:42,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 11:22:42,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 11:22:42,485 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39ef6d062a4ff56ba1e3913ade729d3f60e638b9dea34b0ea6935ef8cddd75d2 [2022-07-22 11:22:42,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 11:22:42,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 11:22:42,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 11:22:42,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 11:22:42,769 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 11:22:42,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label51.c [2022-07-22 11:22:42,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abe5bbc7/c38111093ba34443a5927eab38aac86a/FLAG45273a02a [2022-07-22 11:22:43,353 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 11:22:43,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label51.c [2022-07-22 11:22:43,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abe5bbc7/c38111093ba34443a5927eab38aac86a/FLAG45273a02a [2022-07-22 11:22:43,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3abe5bbc7/c38111093ba34443a5927eab38aac86a [2022-07-22 11:22:43,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 11:22:43,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 11:22:43,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 11:22:43,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 11:22:43,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 11:22:43,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:22:43" (1/1) ... [2022-07-22 11:22:43,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc751fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:43, skipping insertion in model container [2022-07-22 11:22:43,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:22:43" (1/1) ... [2022-07-22 11:22:43,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 11:22:43,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 11:22:44,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label51.c[18730,18743] [2022-07-22 11:22:44,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:22:44,218 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 11:22:44,284 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label51.c[18730,18743] [2022-07-22 11:22:44,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 11:22:44,306 INFO L208 MainTranslator]: Completed translation [2022-07-22 11:22:44,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44 WrapperNode [2022-07-22 11:22:44,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 11:22:44,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 11:22:44,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 11:22:44,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 11:22:44,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,405 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-07-22 11:22:44,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 11:22:44,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 11:22:44,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 11:22:44,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 11:22:44,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 11:22:44,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 11:22:44,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 11:22:44,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 11:22:44,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (1/1) ... [2022-07-22 11:22:44,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 11:22:44,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:44,533 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) [2022-07-22 11:22:44,536 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 [2022-07-22 11:22:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 11:22:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 11:22:44,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 11:22:44,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 11:22:44,649 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 11:22:44,651 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 11:22:45,494 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 11:22:45,501 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 11:22:45,502 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 11:22:45,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:45 BoogieIcfgContainer [2022-07-22 11:22:45,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 11:22:45,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 11:22:45,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 11:22:45,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 11:22:45,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:22:43" (1/3) ... [2022-07-22 11:22:45,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ecc8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:22:45, skipping insertion in model container [2022-07-22 11:22:45,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:22:44" (2/3) ... [2022-07-22 11:22:45,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ecc8b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:22:45, skipping insertion in model container [2022-07-22 11:22:45,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:45" (3/3) ... [2022-07-22 11:22:45,512 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label51.c [2022-07-22 11:22:45,524 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 11:22:45,524 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 11:22:45,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 11:22:45,620 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@52062175, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@21e1fc61 [2022-07-22 11:22:45,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 11:22:45,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-22 11:22:45,645 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:45,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:45,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:45,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:45,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1145971337, now seen corresponding path program 1 times [2022-07-22 11:22:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:45,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884594031] [2022-07-22 11:22:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:45,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:46,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:46,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884594031] [2022-07-22 11:22:46,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884594031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:46,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:46,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:46,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076133981] [2022-07-22 11:22:46,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:46,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:46,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:46,096 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:46,694 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-07-22 11:22:46,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:46,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-07-22 11:22:46,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:46,707 INFO L225 Difference]: With dead ends: 528 [2022-07-22 11:22:46,708 INFO L226 Difference]: Without dead ends: 266 [2022-07-22 11:22:46,711 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 [2022-07-22 11:22:46,714 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 66 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:46,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 11:22:46,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-22 11:22:46,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-07-22 11:22:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2022-07-22 11:22:46,760 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 106 [2022-07-22 11:22:46,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:46,761 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2022-07-22 11:22:46,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2022-07-22 11:22:46,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-22 11:22:46,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:46,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:46,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 11:22:46,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:46,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:46,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1083364170, now seen corresponding path program 1 times [2022-07-22 11:22:46,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:46,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549156411] [2022-07-22 11:22:46,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:46,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:46,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549156411] [2022-07-22 11:22:46,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549156411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:46,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:46,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:46,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295046903] [2022-07-22 11:22:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:46,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:46,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:46,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:46,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:46,845 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:47,238 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2022-07-22 11:22:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:47,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-07-22 11:22:47,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:47,242 INFO L225 Difference]: With dead ends: 792 [2022-07-22 11:22:47,242 INFO L226 Difference]: Without dead ends: 528 [2022-07-22 11:22:47,244 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 [2022-07-22 11:22:47,245 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:47,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-22 11:22:47,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-07-22 11:22:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2022-07-22 11:22:47,276 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 112 [2022-07-22 11:22:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:47,277 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2022-07-22 11:22:47,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2022-07-22 11:22:47,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-22 11:22:47,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:47,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:47,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 11:22:47,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:47,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1869328822, now seen corresponding path program 1 times [2022-07-22 11:22:47,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:47,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790415174] [2022-07-22 11:22:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:47,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:47,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:47,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:47,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790415174] [2022-07-22 11:22:47,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790415174] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:47,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:47,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:47,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518260156] [2022-07-22 11:22:47,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:47,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:47,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:47,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:47,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:47,518 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:48,148 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2022-07-22 11:22:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:48,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-22 11:22:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:48,153 INFO L225 Difference]: With dead ends: 1411 [2022-07-22 11:22:48,153 INFO L226 Difference]: Without dead ends: 790 [2022-07-22 11:22:48,155 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 [2022-07-22 11:22:48,160 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 128 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:48,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 83 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 11:22:48,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-22 11:22:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 659. [2022-07-22 11:22:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.1899696048632218) internal successors, (783), 658 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 783 transitions. [2022-07-22 11:22:48,204 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 783 transitions. Word has length 113 [2022-07-22 11:22:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:48,205 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 783 transitions. [2022-07-22 11:22:48,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 783 transitions. [2022-07-22 11:22:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-22 11:22:48,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:48,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:48,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 11:22:48,208 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:48,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2123843848, now seen corresponding path program 1 times [2022-07-22 11:22:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:48,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576012449] [2022-07-22 11:22:48,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:48,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:48,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:48,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576012449] [2022-07-22 11:22:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576012449] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:48,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328190369] [2022-07-22 11:22:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:48,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:48,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:48,331 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) [2022-07-22 11:22:48,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 11:22:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:48,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:48,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:22:48,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:48,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328190369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:48,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:48,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-22 11:22:48,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674736068] [2022-07-22 11:22:48,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:48,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:48,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:48,658 INFO L87 Difference]: Start difference. First operand 659 states and 783 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:48,982 INFO L93 Difference]: Finished difference Result 1709 states and 2040 transitions. [2022-07-22 11:22:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:48,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 121 [2022-07-22 11:22:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:48,986 INFO L225 Difference]: With dead ends: 1709 [2022-07-22 11:22:48,987 INFO L226 Difference]: Without dead ends: 921 [2022-07-22 11:22:48,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:48,989 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 35 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:48,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 173 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-22 11:22:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2022-07-22 11:22:49,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1787072243346008) internal successors, (930), 789 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:49,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 930 transitions. [2022-07-22 11:22:49,008 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 930 transitions. Word has length 121 [2022-07-22 11:22:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:49,008 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 930 transitions. [2022-07-22 11:22:49,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 930 transitions. [2022-07-22 11:22:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-22 11:22:49,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:49,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:49,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:49,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:49,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:49,237 INFO L85 PathProgramCache]: Analyzing trace with hash 644801539, now seen corresponding path program 1 times [2022-07-22 11:22:49,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:49,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286492563] [2022-07-22 11:22:49,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:49,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:49,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:49,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286492563] [2022-07-22 11:22:49,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286492563] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:49,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540817100] [2022-07-22 11:22:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:49,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:49,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:49,336 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) [2022-07-22 11:22:49,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 11:22:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:49,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:49,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:22:49,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:49,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540817100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:49,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:49,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-22 11:22:49,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415588743] [2022-07-22 11:22:49,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:49,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:49,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:49,565 INFO L87 Difference]: Start difference. First operand 790 states and 930 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:49,913 INFO L93 Difference]: Finished difference Result 2364 states and 2785 transitions. [2022-07-22 11:22:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:49,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 123 [2022-07-22 11:22:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:49,919 INFO L225 Difference]: With dead ends: 2364 [2022-07-22 11:22:49,919 INFO L226 Difference]: Without dead ends: 1445 [2022-07-22 11:22:49,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:49,921 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:49,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 189 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:49,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-07-22 11:22:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2022-07-22 11:22:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.1551246537396123) internal successors, (1668), 1444 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:49,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1668 transitions. [2022-07-22 11:22:49,948 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1668 transitions. Word has length 123 [2022-07-22 11:22:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:49,949 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1668 transitions. [2022-07-22 11:22:49,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1668 transitions. [2022-07-22 11:22:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-22 11:22:49,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:49,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:49,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:50,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:50,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1963549498, now seen corresponding path program 1 times [2022-07-22 11:22:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:50,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251162760] [2022-07-22 11:22:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-22 11:22:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:50,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251162760] [2022-07-22 11:22:50,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251162760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:50,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:50,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148386066] [2022-07-22 11:22:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:50,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:50,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:50,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:50,225 INFO L87 Difference]: Start difference. First operand 1445 states and 1668 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:50,522 INFO L93 Difference]: Finished difference Result 3019 states and 3503 transitions. [2022-07-22 11:22:50,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:50,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 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 140 [2022-07-22 11:22:50,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:50,528 INFO L225 Difference]: With dead ends: 3019 [2022-07-22 11:22:50,528 INFO L226 Difference]: Without dead ends: 1707 [2022-07-22 11:22:50,531 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 [2022-07-22 11:22:50,531 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 105 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:50,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 44 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:50,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2022-07-22 11:22:50,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2022-07-22 11:22:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.1406799531066822) internal successors, (1946), 1706 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1946 transitions. [2022-07-22 11:22:50,562 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1946 transitions. Word has length 140 [2022-07-22 11:22:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:50,563 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 1946 transitions. [2022-07-22 11:22:50,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1946 transitions. [2022-07-22 11:22:50,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-22 11:22:50,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:50,567 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:50,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 11:22:50,567 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash 712915108, now seen corresponding path program 1 times [2022-07-22 11:22:50,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:50,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512227020] [2022-07-22 11:22:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-22 11:22:50,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:50,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512227020] [2022-07-22 11:22:50,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512227020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:50,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:50,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:50,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20385116] [2022-07-22 11:22:50,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:50,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:50,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:50,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:50,624 INFO L87 Difference]: Start difference. First operand 1707 states and 1946 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:50,928 INFO L93 Difference]: Finished difference Result 3805 states and 4353 transitions. [2022-07-22 11:22:50,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:50,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2022-07-22 11:22:50,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:50,935 INFO L225 Difference]: With dead ends: 3805 [2022-07-22 11:22:50,936 INFO L226 Difference]: Without dead ends: 2231 [2022-07-22 11:22:50,938 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 [2022-07-22 11:22:50,939 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 132 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:50,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 23 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:50,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-22 11:22:50,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1969. [2022-07-22 11:22:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1402439024390243) internal successors, (2244), 1968 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2244 transitions. [2022-07-22 11:22:50,978 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2244 transitions. Word has length 149 [2022-07-22 11:22:50,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:50,978 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2244 transitions. [2022-07-22 11:22:50,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2244 transitions. [2022-07-22 11:22:50,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-07-22 11:22:50,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:50,983 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:50,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 11:22:50,983 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:50,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1892191701, now seen corresponding path program 1 times [2022-07-22 11:22:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:50,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21455160] [2022-07-22 11:22:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-22 11:22:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:51,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21455160] [2022-07-22 11:22:51,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21455160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:51,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:51,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 11:22:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212149549] [2022-07-22 11:22:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:51,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 11:22:51,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 11:22:51,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 11:22:51,036 INFO L87 Difference]: Start difference. First operand 1969 states and 2244 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:51,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:51,516 INFO L93 Difference]: Finished difference Result 4067 states and 4651 transitions. [2022-07-22 11:22:51,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 11:22:51,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 155 [2022-07-22 11:22:51,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:51,524 INFO L225 Difference]: With dead ends: 4067 [2022-07-22 11:22:51,524 INFO L226 Difference]: Without dead ends: 2231 [2022-07-22 11:22:51,526 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 [2022-07-22 11:22:51,527 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 382 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:51,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 43 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 11:22:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-22 11:22:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2022-07-22 11:22:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.132444020962363) internal successors, (2377), 2099 states have internal predecessors, (2377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:51,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2377 transitions. [2022-07-22 11:22:51,570 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2377 transitions. Word has length 155 [2022-07-22 11:22:51,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:51,570 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2377 transitions. [2022-07-22 11:22:51,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:51,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2377 transitions. [2022-07-22 11:22:51,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-22 11:22:51,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:51,575 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:51,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 11:22:51,576 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:51,576 INFO L85 PathProgramCache]: Analyzing trace with hash 101584918, now seen corresponding path program 1 times [2022-07-22 11:22:51,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:51,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546677394] [2022-07-22 11:22:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:51,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:51,660 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 11:22:51,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:51,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546677394] [2022-07-22 11:22:51,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546677394] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:51,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688702337] [2022-07-22 11:22:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:51,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:51,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:51,663 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) [2022-07-22 11:22:51,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 11:22:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:51,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 11:22:51,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-22 11:22:51,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:51,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688702337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:51,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:51,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-22 11:22:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550477499] [2022-07-22 11:22:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:51,901 INFO L87 Difference]: Start difference. First operand 2100 states and 2377 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:52,205 INFO L93 Difference]: Finished difference Result 4722 states and 5397 transitions. [2022-07-22 11:22:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:52,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2022-07-22 11:22:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:52,214 INFO L225 Difference]: With dead ends: 4722 [2022-07-22 11:22:52,214 INFO L226 Difference]: Without dead ends: 2755 [2022-07-22 11:22:52,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:52,220 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 32 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:52,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 178 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:52,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-22 11:22:52,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2100. [2022-07-22 11:22:52,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.1205335874225821) internal successors, (2352), 2099 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2352 transitions. [2022-07-22 11:22:52,267 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2352 transitions. Word has length 173 [2022-07-22 11:22:52,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:52,267 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2352 transitions. [2022-07-22 11:22:52,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2352 transitions. [2022-07-22 11:22:52,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-22 11:22:52,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:52,273 INFO L195 NwaCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:52,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:52,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:52,495 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:52,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:52,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1219695243, now seen corresponding path program 1 times [2022-07-22 11:22:52,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:52,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666912156] [2022-07-22 11:22:52,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:52,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-07-22 11:22:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:52,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666912156] [2022-07-22 11:22:52,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666912156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:52,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 11:22:52,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 11:22:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335517820] [2022-07-22 11:22:52,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:52,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:52,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:52,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 11:22:52,566 INFO L87 Difference]: Start difference. First operand 2100 states and 2352 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:52,889 INFO L93 Difference]: Finished difference Result 4329 states and 4867 transitions. [2022-07-22 11:22:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 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 220 [2022-07-22 11:22:52,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:52,895 INFO L225 Difference]: With dead ends: 4329 [2022-07-22 11:22:52,896 INFO L226 Difference]: Without dead ends: 2100 [2022-07-22 11:22:52,898 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 [2022-07-22 11:22:52,899 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 97 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:52,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 48 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:52,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-22 11:22:52,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2022-07-22 11:22:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.1046747967479675) internal successors, (2174), 1968 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2174 transitions. [2022-07-22 11:22:52,935 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2174 transitions. Word has length 220 [2022-07-22 11:22:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:52,936 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2174 transitions. [2022-07-22 11:22:52,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:52,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2174 transitions. [2022-07-22 11:22:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-22 11:22:52,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 11:22:52,942 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:52,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 11:22:52,943 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 11:22:52,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 11:22:52,943 INFO L85 PathProgramCache]: Analyzing trace with hash -908696778, now seen corresponding path program 1 times [2022-07-22 11:22:52,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 11:22:52,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840641830] [2022-07-22 11:22:52,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:52,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 11:22:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:53,026 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 120 proven. 6 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-07-22 11:22:53,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 11:22:53,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840641830] [2022-07-22 11:22:53,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840641830] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 11:22:53,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471559277] [2022-07-22 11:22:53,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 11:22:53,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 11:22:53,029 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) [2022-07-22 11:22:53,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 11:22:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 11:22:53,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 11:22:53,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 11:22:53,273 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-07-22 11:22:53,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 11:22:53,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471559277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 11:22:53,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 11:22:53,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-07-22 11:22:53,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145274213] [2022-07-22 11:22:53,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 11:22:53,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 11:22:53,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 11:22:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 11:22:53,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:53,277 INFO L87 Difference]: Start difference. First operand 1969 states and 2174 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:53,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 11:22:53,615 INFO L93 Difference]: Finished difference Result 4065 states and 4506 transitions. [2022-07-22 11:22:53,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 11:22:53,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2022-07-22 11:22:53,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 11:22:53,617 INFO L225 Difference]: With dead ends: 4065 [2022-07-22 11:22:53,617 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 11:22:53,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 11:22:53,621 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 40 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 11:22:53,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 165 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 11:22:53,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 11:22:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 11:22:53,623 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) [2022-07-22 11:22:53,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 11:22:53,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2022-07-22 11:22:53,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 11:22:53,623 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 11:22:53,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 11:22:53,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 11:22:53,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 11:22:53,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 11:22:53,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 11:22:53,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 11:22:53,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,320 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-07-22 11:22:54,321 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-07-22 11:22:54,322 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-07-22 11:22:54,323 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-22 11:22:54,324 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-07-22 11:22:54,325 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-07-22 11:22:54,326 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-07-22 11:22:54,327 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-07-22 11:22:54,327 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-07-22 11:22:54,327 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-07-22 11:22:54,327 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-07-22 11:22:54,331 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse2 (<= 15 ~a8~0)) (.cse3 (<= ~a20~0 0)) (.cse7 (= ~a12~0 8)) (.cse0 (= ~a21~0 1)) (.cse8 (= ~a17~0 1)) (.cse4 (<= ~a16~0 5)) (.cse1 (= ~a20~0 1)) (.cse5 (= ~a7~0 1)) (.cse6 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2) (and .cse3 .cse4) (and .cse5 .cse4) (and .cse6 .cse7 .cse0 .cse8 .cse1) (and .cse0 .cse9 .cse1) (and .cse7 .cse0 .cse8 .cse4 .cse1) (and .cse6 .cse5) (and .cse6 .cse9))) [2022-07-22 11:22:54,331 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-07-22 11:22:54,332 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-07-22 11:22:54,333 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-07-22 11:22:54,334 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 11:22:54,334 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-07-22 11:22:54,334 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-07-22 11:22:54,336 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 11:22:54,337 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-07-22 11:22:54,338 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-07-22 11:22:54,339 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-07-22 11:22:54,340 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-07-22 11:22:54,340 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-07-22 11:22:54,340 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-07-22 11:22:54,340 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse2 (<= 15 ~a8~0)) (.cse3 (<= ~a20~0 0)) (.cse7 (= ~a12~0 8)) (.cse0 (= ~a21~0 1)) (.cse8 (= ~a17~0 1)) (.cse4 (<= ~a16~0 5)) (.cse1 (= ~a20~0 1)) (.cse5 (= ~a7~0 1)) (.cse6 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 4))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2) (and .cse3 .cse4) (and .cse5 .cse4) (and .cse6 .cse7 .cse0 .cse8 .cse1) (and .cse0 .cse9 .cse1) (and .cse7 .cse0 .cse8 .cse4 .cse1) (and .cse6 .cse5) (and .cse6 .cse9))) [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-07-22 11:22:54,341 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 504) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-07-22 11:22:54,342 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-07-22 11:22:54,343 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-07-22 11:22:54,344 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-07-22 11:22:54,348 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 11:22:54,350 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 11:22:54,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 11:22:54 BoogieIcfgContainer [2022-07-22 11:22:54,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 11:22:54,379 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 11:22:54,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 11:22:54,379 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 11:22:54,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:22:45" (3/4) ... [2022-07-22 11:22:54,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 11:22:54,416 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 11:22:54,417 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 11:22:54,418 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 11:22:54,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 11:22:54,520 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 11:22:54,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 11:22:54,521 INFO L158 Benchmark]: Toolchain (without parser) took 10701.64ms. Allocated memory was 92.3MB in the beginning and 224.4MB in the end (delta: 132.1MB). Free memory was 52.1MB in the beginning and 186.4MB in the end (delta: -134.3MB). Peak memory consumption was 101.2MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,522 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 11:22:54,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.33ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 82.8MB in the end (delta: -30.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.71ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 77.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,523 INFO L158 Benchmark]: Boogie Preprocessor took 81.26ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 72.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,524 INFO L158 Benchmark]: RCFGBuilder took 1003.25ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 81.3MB in the end (delta: -8.5MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,525 INFO L158 Benchmark]: TraceAbstraction took 8873.33ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 80.8MB in the beginning and 50.3MB in the end (delta: 30.4MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,526 INFO L158 Benchmark]: Witness Printer took 141.67ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 50.3MB in the beginning and 186.4MB in the end (delta: -136.1MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-07-22 11:22:54,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.33ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 51.9MB in the beginning and 82.8MB in the end (delta: -30.8MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.71ms. Allocated memory is still 123.7MB. Free memory was 82.8MB in the beginning and 77.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.26ms. Allocated memory is still 123.7MB. Free memory was 77.0MB in the beginning and 72.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1003.25ms. Allocated memory is still 123.7MB. Free memory was 72.8MB in the beginning and 81.3MB in the end (delta: -8.5MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8873.33ms. Allocated memory was 123.7MB in the beginning and 186.6MB in the end (delta: 62.9MB). Free memory was 80.8MB in the beginning and 50.3MB in the end (delta: 30.4MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. * Witness Printer took 141.67ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 50.3MB in the beginning and 186.4MB in the end (delta: -136.1MB). Peak memory consumption was 2.3MB. 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: 504]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1187 SdHoareTripleChecker+Valid, 4.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1187 mSDsluCounter, 1066 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 548 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3914 IncrementalHoareTripleChecker+Invalid, 4462 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 548 mSolverCounterUnsat, 997 mSDtfsCounter, 3914 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 675 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=8, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 177 HoareAnnotationTreeSize, 3 FomulaSimplifications, 538 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 926 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2295 NumberOfCodeBlocks, 2295 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2280 ConstructedInterpolants, 0 QuantifiedInterpolants, 7658 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1265 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 970/1011 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && a20 == 1) && 15 <= a8) || (a20 <= 0 && 15 <= a8)) || (a20 <= 0 && a16 <= 5)) || (a7 == 1 && a16 <= 5)) || ((((a8 <= 13 && a12 == 8) && a21 == 1) && a17 == 1) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || (a8 <= 13 && a7 == 1)) || (a8 <= 13 && a16 <= 4) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((a21 == 1 && a20 == 1) && 15 <= a8) || (a20 <= 0 && 15 <= a8)) || (a20 <= 0 && a16 <= 5)) || (a7 == 1 && a16 <= 5)) || ((((a8 <= 13 && a12 == 8) && a21 == 1) && a17 == 1) && a20 == 1)) || ((a21 == 1 && a16 <= 4) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1)) || (a8 <= 13 && a7 == 1)) || (a8 <= 13 && a16 <= 4) RESULT: Ultimate proved your program to be correct! [2022-07-22 11:22:54,581 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