./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.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 d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:50:45,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:50:45,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:50:45,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:50:45,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:50:45,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:50:45,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:50:45,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:50:45,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:50:45,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:50:45,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:50:45,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:50:45,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:50:45,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:50:45,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:50:45,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:50:45,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:50:45,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:50:45,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:50:45,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:50:45,742 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:50:45,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:50:45,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:50:45,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:50:45,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:50:45,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:50:45,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:50:45,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:50:45,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:50:45,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:50:45,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:50:45,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:50:45,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:50:45,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:50:45,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:50:45,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:50:45,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:50:45,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:50:45,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:50:45,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:50:45,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:50:45,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:50:45,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:50:45,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:50:45,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:50:45,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:50:45,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:50:45,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:50:45,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:50:45,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:50:45,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:50:45,801 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:50:45,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:50:45,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:50:45,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:50:45,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:50:45,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:50:45,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:50:45,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:50:45,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:50:45,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:50:45,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:50:45,810 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:50:45,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:50:45,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:50:45,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:50:45,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:50:45,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:50:45,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:50:45,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:50:45,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:50:45,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:50:45,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:50:45,812 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:50:45,812 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:50:45,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:50:45,812 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d07f8866cb9bb11c792ba110404f1fc964b1e4b380540b8d73177141eae78bfc [2022-07-21 05:50:46,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:50:46,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:50:46,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:50:46,174 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:50:46,175 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:50:46,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-07-21 05:50:46,236 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfbf2dd63/4623b6825d094dc1930fb3c0b07c92f6/FLAG654e5e4c6 [2022-07-21 05:50:46,733 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:50:46,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-07-21 05:50:46,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfbf2dd63/4623b6825d094dc1930fb3c0b07c92f6/FLAG654e5e4c6 [2022-07-21 05:50:47,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfbf2dd63/4623b6825d094dc1930fb3c0b07c92f6 [2022-07-21 05:50:47,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:50:47,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:50:47,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:50:47,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:50:47,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:50:47,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bea0b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47, skipping insertion in model container [2022-07-21 05:50:47,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:50:47,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:50:47,334 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2022-07-21 05:50:47,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:50:47,409 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:50:47,450 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/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6358,6371] [2022-07-21 05:50:47,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:50:47,485 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:50:47,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47 WrapperNode [2022-07-21 05:50:47,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:50:47,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:50:47,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:50:47,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:50:47,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,555 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 507 [2022-07-21 05:50:47,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:50:47,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:50:47,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:50:47,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:50:47,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:50:47,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:50:47,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:50:47,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:50:47,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (1/1) ... [2022-07-21 05:50:47,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:50:47,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:50:47,647 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) [2022-07-21 05:50:47,649 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 [2022-07-21 05:50:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:50:47,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:50:47,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:50:47,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:50:47,844 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:50:47,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:50:48,344 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:50:48,354 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:50:48,354 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 05:50:48,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:50:48 BoogieIcfgContainer [2022-07-21 05:50:48,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:50:48,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:50:48,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:50:48,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:50:48,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:50:47" (1/3) ... [2022-07-21 05:50:48,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d11a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:50:48, skipping insertion in model container [2022-07-21 05:50:48,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:50:47" (2/3) ... [2022-07-21 05:50:48,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421d11a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:50:48, skipping insertion in model container [2022-07-21 05:50:48,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:50:48" (3/3) ... [2022-07-21 05:50:48,366 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2022-07-21 05:50:48,378 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:50:48,378 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:50:48,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:50:48,433 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@1dbe54fb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c842726 [2022-07-21 05:50:48,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:50:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 132 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-21 05:50:48,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:48,445 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] [2022-07-21 05:50:48,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:48,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:48,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1416821255, now seen corresponding path program 1 times [2022-07-21 05:50:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:48,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642958447] [2022-07-21 05:50:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:48,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:48,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642958447] [2022-07-21 05:50:48,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642958447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:48,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:48,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:48,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436539619] [2022-07-21 05:50:48,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:48,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:48,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:48,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:48,805 INFO L87 Difference]: Start difference. First operand has 133 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 132 states have internal predecessors, (222), 0 states have call successors, (0), 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 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:48,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:48,867 INFO L93 Difference]: Finished difference Result 313 states and 504 transitions. [2022-07-21 05:50:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:48,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-07-21 05:50:48,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:48,885 INFO L225 Difference]: With dead ends: 313 [2022-07-21 05:50:48,885 INFO L226 Difference]: Without dead ends: 209 [2022-07-21 05:50:48,888 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 [2022-07-21 05:50:48,891 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 160 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:48,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 471 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:50:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-21 05:50:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2022-07-21 05:50:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.5) internal successors, (309), 206 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:48,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 309 transitions. [2022-07-21 05:50:48,964 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 309 transitions. Word has length 60 [2022-07-21 05:50:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:48,966 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 309 transitions. [2022-07-21 05:50:48,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 309 transitions. [2022-07-21 05:50:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-21 05:50:48,976 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:48,976 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] [2022-07-21 05:50:48,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:50:48,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:48,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:48,978 INFO L85 PathProgramCache]: Analyzing trace with hash 20222822, now seen corresponding path program 1 times [2022-07-21 05:50:48,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:48,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161900256] [2022-07-21 05:50:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:48,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:49,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:49,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:49,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161900256] [2022-07-21 05:50:49,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161900256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:49,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:49,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448169440] [2022-07-21 05:50:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:49,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:49,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:49,152 INFO L87 Difference]: Start difference. First operand 207 states and 309 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:49,221 INFO L93 Difference]: Finished difference Result 519 states and 805 transitions. [2022-07-21 05:50:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:49,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-07-21 05:50:49,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:49,225 INFO L225 Difference]: With dead ends: 519 [2022-07-21 05:50:49,226 INFO L226 Difference]: Without dead ends: 347 [2022-07-21 05:50:49,232 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 [2022-07-21 05:50:49,233 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 130 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:49,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 408 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:50:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-21 05:50:49,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2022-07-21 05:50:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.5348837209302326) internal successors, (528), 344 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 528 transitions. [2022-07-21 05:50:49,289 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 528 transitions. Word has length 61 [2022-07-21 05:50:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:49,290 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 528 transitions. [2022-07-21 05:50:49,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,291 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 528 transitions. [2022-07-21 05:50:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-21 05:50:49,294 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:49,295 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] [2022-07-21 05:50:49,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:50:49,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:49,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:49,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2012832692, now seen corresponding path program 1 times [2022-07-21 05:50:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:49,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598468956] [2022-07-21 05:50:49,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:49,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:49,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:49,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598468956] [2022-07-21 05:50:49,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598468956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:49,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:49,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482072552] [2022-07-21 05:50:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:49,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:49,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:49,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:49,422 INFO L87 Difference]: Start difference. First operand 345 states and 528 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:49,477 INFO L93 Difference]: Finished difference Result 901 states and 1410 transitions. [2022-07-21 05:50:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-07-21 05:50:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:49,483 INFO L225 Difference]: With dead ends: 901 [2022-07-21 05:50:49,483 INFO L226 Difference]: Without dead ends: 591 [2022-07-21 05:50:49,486 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 [2022-07-21 05:50:49,490 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 125 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:49,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 393 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:50:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-07-21 05:50:49,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2022-07-21 05:50:49,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 588 states have (on average 1.5510204081632653) internal successors, (912), 588 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 912 transitions. [2022-07-21 05:50:49,544 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 912 transitions. Word has length 62 [2022-07-21 05:50:49,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:49,545 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 912 transitions. [2022-07-21 05:50:49,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,546 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 912 transitions. [2022-07-21 05:50:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-21 05:50:49,549 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:49,550 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] [2022-07-21 05:50:49,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:50:49,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash 345107267, now seen corresponding path program 1 times [2022-07-21 05:50:49,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:49,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974075454] [2022-07-21 05:50:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:49,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:49,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:49,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974075454] [2022-07-21 05:50:49,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974075454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:49,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:49,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:50:49,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405981137] [2022-07-21 05:50:49,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:49,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:50:49,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:49,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:50:49,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:50:49,652 INFO L87 Difference]: Start difference. First operand 589 states and 912 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:49,733 INFO L93 Difference]: Finished difference Result 1569 states and 2458 transitions. [2022-07-21 05:50:49,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:50:49,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-07-21 05:50:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:49,739 INFO L225 Difference]: With dead ends: 1569 [2022-07-21 05:50:49,739 INFO L226 Difference]: Without dead ends: 1015 [2022-07-21 05:50:49,742 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 [2022-07-21 05:50:49,747 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 120 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:49,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 378 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:50:49,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2022-07-21 05:50:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1013. [2022-07-21 05:50:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1012 states have (on average 1.5533596837944663) internal successors, (1572), 1012 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1572 transitions. [2022-07-21 05:50:49,833 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1572 transitions. Word has length 63 [2022-07-21 05:50:49,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:49,834 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1572 transitions. [2022-07-21 05:50:49,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1572 transitions. [2022-07-21 05:50:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-21 05:50:49,837 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:49,838 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] [2022-07-21 05:50:49,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:50:49,838 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:49,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1868026547, now seen corresponding path program 1 times [2022-07-21 05:50:49,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:49,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427093484] [2022-07-21 05:50:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:49,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:49,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:49,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:49,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427093484] [2022-07-21 05:50:49,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427093484] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:49,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:49,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:50:49,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013443638] [2022-07-21 05:50:49,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:49,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:50:49,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:49,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:50:49,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:50:49,969 INFO L87 Difference]: Start difference. First operand 1013 states and 1572 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:50,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:50,634 INFO L93 Difference]: Finished difference Result 6881 states and 10794 transitions. [2022-07-21 05:50:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:50:50,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-07-21 05:50:50,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:50,661 INFO L225 Difference]: With dead ends: 6881 [2022-07-21 05:50:50,662 INFO L226 Difference]: Without dead ends: 5903 [2022-07-21 05:50:50,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:50:50,665 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 1406 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:50,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2213 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5903 states. [2022-07-21 05:50:50,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5903 to 1989. [2022-07-21 05:50:50,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1988 states have (on average 1.5472837022132797) internal successors, (3076), 1988 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:50,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 3076 transitions. [2022-07-21 05:50:50,951 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 3076 transitions. Word has length 64 [2022-07-21 05:50:50,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:50,952 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 3076 transitions. [2022-07-21 05:50:50,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:50,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 3076 transitions. [2022-07-21 05:50:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-21 05:50:50,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:50,957 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] [2022-07-21 05:50:50,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:50:50,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:50,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:50,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2054791872, now seen corresponding path program 1 times [2022-07-21 05:50:50,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:50,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54159750] [2022-07-21 05:50:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:50,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:51,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:51,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54159750] [2022-07-21 05:50:51,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54159750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:51,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:51,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:50:51,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056051553] [2022-07-21 05:50:51,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:51,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:50:51,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:50:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:50:51,107 INFO L87 Difference]: Start difference. First operand 1989 states and 3076 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:52,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:52,378 INFO L93 Difference]: Finished difference Result 10479 states and 16169 transitions. [2022-07-21 05:50:52,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:50:52,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-07-21 05:50:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:52,412 INFO L225 Difference]: With dead ends: 10479 [2022-07-21 05:50:52,413 INFO L226 Difference]: Without dead ends: 8525 [2022-07-21 05:50:52,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:50:52,421 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 611 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:52,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1179 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:50:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8525 states. [2022-07-21 05:50:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8525 to 8517. [2022-07-21 05:50:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8517 states, 8516 states have (on average 1.5373414748708314) internal successors, (13092), 8516 states have internal predecessors, (13092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8517 states to 8517 states and 13092 transitions. [2022-07-21 05:50:53,405 INFO L78 Accepts]: Start accepts. Automaton has 8517 states and 13092 transitions. Word has length 65 [2022-07-21 05:50:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:53,406 INFO L495 AbstractCegarLoop]: Abstraction has 8517 states and 13092 transitions. [2022-07-21 05:50:53,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 8517 states and 13092 transitions. [2022-07-21 05:50:53,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 05:50:53,407 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:53,408 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] [2022-07-21 05:50:53,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:50:53,408 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:53,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:53,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1554842583, now seen corresponding path program 1 times [2022-07-21 05:50:53,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:53,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405941745] [2022-07-21 05:50:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:53,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:53,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:53,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:53,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405941745] [2022-07-21 05:50:53,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405941745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:53,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:53,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 05:50:53,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105295082] [2022-07-21 05:50:53,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:53,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:50:53,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:53,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:50:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:50:53,489 INFO L87 Difference]: Start difference. First operand 8517 states and 13092 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:50:55,389 INFO L93 Difference]: Finished difference Result 25481 states and 39206 transitions. [2022-07-21 05:50:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:50:55,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-07-21 05:50:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:50:55,447 INFO L225 Difference]: With dead ends: 25481 [2022-07-21 05:50:55,447 INFO L226 Difference]: Without dead ends: 16999 [2022-07-21 05:50:55,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:50:55,466 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 790 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 05:50:55,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 218 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 05:50:55,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16999 states. [2022-07-21 05:50:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16999 to 16997. [2022-07-21 05:50:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16997 states, 16996 states have (on average 1.5309484584608144) internal successors, (26020), 16996 states have internal predecessors, (26020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16997 states to 16997 states and 26020 transitions. [2022-07-21 05:50:57,346 INFO L78 Accepts]: Start accepts. Automaton has 16997 states and 26020 transitions. Word has length 67 [2022-07-21 05:50:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:50:57,346 INFO L495 AbstractCegarLoop]: Abstraction has 16997 states and 26020 transitions. [2022-07-21 05:50:57,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:50:57,347 INFO L276 IsEmpty]: Start isEmpty. Operand 16997 states and 26020 transitions. [2022-07-21 05:50:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-21 05:50:57,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:50:57,348 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] [2022-07-21 05:50:57,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 05:50:57,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:50:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:50:57,349 INFO L85 PathProgramCache]: Analyzing trace with hash -970153006, now seen corresponding path program 1 times [2022-07-21 05:50:57,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:50:57,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449151070] [2022-07-21 05:50:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:50:57,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:50:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:50:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:50:57,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:50:57,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449151070] [2022-07-21 05:50:57,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449151070] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:50:57,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:50:57,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:50:57,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106717075] [2022-07-21 05:50:57,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:50:57,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:50:57,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:50:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:50:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:50:57,425 INFO L87 Difference]: Start difference. First operand 16997 states and 26020 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:00,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:00,574 INFO L93 Difference]: Finished difference Result 34599 states and 52645 transitions. [2022-07-21 05:51:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:51:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-07-21 05:51:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:00,645 INFO L225 Difference]: With dead ends: 34599 [2022-07-21 05:51:00,645 INFO L226 Difference]: Without dead ends: 34597 [2022-07-21 05:51:00,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:51:00,659 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 290 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:00,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 935 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:00,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34597 states. [2022-07-21 05:51:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34597 to 17637. [2022-07-21 05:51:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17637 states, 17636 states have (on average 1.5116806532093445) internal successors, (26660), 17636 states have internal predecessors, (26660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:03,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17637 states to 17637 states and 26660 transitions. [2022-07-21 05:51:03,144 INFO L78 Accepts]: Start accepts. Automaton has 17637 states and 26660 transitions. Word has length 67 [2022-07-21 05:51:03,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:03,144 INFO L495 AbstractCegarLoop]: Abstraction has 17637 states and 26660 transitions. [2022-07-21 05:51:03,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:03,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17637 states and 26660 transitions. [2022-07-21 05:51:03,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 05:51:03,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:03,146 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] [2022-07-21 05:51:03,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 05:51:03,146 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:51:03,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:03,147 INFO L85 PathProgramCache]: Analyzing trace with hash 600977, now seen corresponding path program 1 times [2022-07-21 05:51:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:03,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230128093] [2022-07-21 05:51:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:03,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230128093] [2022-07-21 05:51:03,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230128093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:03,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:03,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611611557] [2022-07-21 05:51:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:03,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:03,187 INFO L87 Difference]: Start difference. First operand 17637 states and 26660 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:06,111 INFO L93 Difference]: Finished difference Result 49161 states and 73934 transitions. [2022-07-21 05:51:06,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:06,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-21 05:51:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:06,195 INFO L225 Difference]: With dead ends: 49161 [2022-07-21 05:51:06,196 INFO L226 Difference]: Without dead ends: 31559 [2022-07-21 05:51:06,237 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 [2022-07-21 05:51:06,237 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 109 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:06,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 332 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:06,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31559 states. [2022-07-21 05:51:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31559 to 31269. [2022-07-21 05:51:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31269 states, 31268 states have (on average 1.48535243699629) internal successors, (46444), 31268 states have internal predecessors, (46444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:09,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31269 states to 31269 states and 46444 transitions. [2022-07-21 05:51:09,872 INFO L78 Accepts]: Start accepts. Automaton has 31269 states and 46444 transitions. Word has length 68 [2022-07-21 05:51:09,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:09,873 INFO L495 AbstractCegarLoop]: Abstraction has 31269 states and 46444 transitions. [2022-07-21 05:51:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:09,874 INFO L276 IsEmpty]: Start isEmpty. Operand 31269 states and 46444 transitions. [2022-07-21 05:51:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 05:51:09,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:09,875 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] [2022-07-21 05:51:09,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 05:51:09,876 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:51:09,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:09,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1651692121, now seen corresponding path program 1 times [2022-07-21 05:51:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:09,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287126639] [2022-07-21 05:51:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:09,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:51:09,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:09,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287126639] [2022-07-21 05:51:09,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287126639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:09,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:09,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:51:09,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060404510] [2022-07-21 05:51:09,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:09,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:51:09,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:09,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:51:09,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:51:09,913 INFO L87 Difference]: Start difference. First operand 31269 states and 46444 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:14,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:14,395 INFO L93 Difference]: Finished difference Result 62316 states and 92978 transitions. [2022-07-21 05:51:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:51:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-07-21 05:51:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:14,504 INFO L225 Difference]: With dead ends: 62316 [2022-07-21 05:51:14,504 INFO L226 Difference]: Without dead ends: 44713 [2022-07-21 05:51:14,550 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 [2022-07-21 05:51:14,551 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 136 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:14,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 453 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:51:14,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44713 states. [2022-07-21 05:51:19,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44713 to 44711. [2022-07-21 05:51:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44711 states, 44710 states have (on average 1.4768508163721763) internal successors, (66030), 44710 states have internal predecessors, (66030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44711 states to 44711 states and 66030 transitions. [2022-07-21 05:51:19,507 INFO L78 Accepts]: Start accepts. Automaton has 44711 states and 66030 transitions. Word has length 68 [2022-07-21 05:51:19,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:51:19,508 INFO L495 AbstractCegarLoop]: Abstraction has 44711 states and 66030 transitions. [2022-07-21 05:51:19,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 44711 states and 66030 transitions. [2022-07-21 05:51:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-21 05:51:19,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:51:19,523 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 05:51:19,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 05:51:19,524 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:51:19,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:51:19,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1604732899, now seen corresponding path program 1 times [2022-07-21 05:51:19,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:51:19,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91984447] [2022-07-21 05:51:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:51:19,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:51:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:51:19,594 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-21 05:51:19,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:51:19,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91984447] [2022-07-21 05:51:19,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91984447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:51:19,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:51:19,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 05:51:19,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124269801] [2022-07-21 05:51:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:51:19,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 05:51:19,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:51:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 05:51:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:51:19,596 INFO L87 Difference]: Start difference. First operand 44711 states and 66030 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:51:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:51:28,555 INFO L93 Difference]: Finished difference Result 105939 states and 157884 transitions. [2022-07-21 05:51:28,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 05:51:28,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 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 94 [2022-07-21 05:51:28,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:51:28,735 INFO L225 Difference]: With dead ends: 105939 [2022-07-21 05:51:28,735 INFO L226 Difference]: Without dead ends: 86993 [2022-07-21 05:51:28,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 05:51:28,779 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1189 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:51:28,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 1697 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:51:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86993 states.