./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/toy1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/toy1.cil.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 c40ed6d21fe4d61cae011269f1fdb95d05149cea0f3470f42c6e8f2fc8fb0d6a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:54:22,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:54:22,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:54:22,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:54:22,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:54:22,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:54:22,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:54:22,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:54:22,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:54:22,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:54:22,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:54:22,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:54:22,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:54:22,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:54:22,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:54:22,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:54:22,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:54:22,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:54:22,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:54:22,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:54:22,740 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:54:22,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:54:22,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:54:22,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:54:22,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:54:22,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:54:22,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:54:22,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:54:22,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:54:22,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:54:22,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:54:22,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:54:22,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:54:22,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:54:22,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:54:22,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:54:22,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:54:22,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:54:22,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:54:22,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:54:22,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:54:22,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:54:22,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:54:22,780 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:54:22,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:54:22,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:54:22,781 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:54:22,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:54:22,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:54:22,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:54:22,782 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:54:22,782 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:54:22,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:54:22,783 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:54:22,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:54:22,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:54:22,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:54:22,784 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:54:22,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:54:22,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:54:22,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:54:22,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:54:22,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:54:22,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:54:22,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:54:22,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c40ed6d21fe4d61cae011269f1fdb95d05149cea0f3470f42c6e8f2fc8fb0d6a [2022-07-22 17:54:22,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:54:22,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:54:22,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:54:22,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:54:22,972 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:54:22,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy1.cil.c [2022-07-22 17:54:23,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0af43fc/d46109506120471b9a21433c6b79833a/FLAG97d38ef5f [2022-07-22 17:54:23,394 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:54:23,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy1.cil.c [2022-07-22 17:54:23,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0af43fc/d46109506120471b9a21433c6b79833a/FLAG97d38ef5f [2022-07-22 17:54:23,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0af43fc/d46109506120471b9a21433c6b79833a [2022-07-22 17:54:23,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:54:23,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:54:23,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:54:23,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:54:23,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:54:23,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32615170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23, skipping insertion in model container [2022-07-22 17:54:23,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:54:23,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:54:23,588 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/systemc/toy1.cil.c[698,711] [2022-07-22 17:54:23,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:54:23,641 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:54:23,647 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/systemc/toy1.cil.c[698,711] [2022-07-22 17:54:23,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:54:23,681 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:54:23,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23 WrapperNode [2022-07-22 17:54:23,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:54:23,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:54:23,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:54:23,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:54:23,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,721 INFO L137 Inliner]: procedures = 20, calls = 16, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 360 [2022-07-22 17:54:23,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:54:23,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:54:23,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:54:23,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:54:23,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:54:23,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:54:23,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:54:23,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:54:23,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (1/1) ... [2022-07-22 17:54:23,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:54:23,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:54:23,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 17:54:23,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 17:54:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:54:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:54:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-22 17:54:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-22 17:54:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:54:23,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:54:23,875 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:54:23,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:54:24,227 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:54:24,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:54:24,232 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-22 17:54:24,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:54:24 BoogieIcfgContainer [2022-07-22 17:54:24,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:54:24,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:54:24,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:54:24,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:54:24,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:54:23" (1/3) ... [2022-07-22 17:54:24,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71869c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:54:24, skipping insertion in model container [2022-07-22 17:54:24,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:54:23" (2/3) ... [2022-07-22 17:54:24,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71869c07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:54:24, skipping insertion in model container [2022-07-22 17:54:24,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:54:24" (3/3) ... [2022-07-22 17:54:24,243 INFO L111 eAbstractionObserver]: Analyzing ICFG toy1.cil.c [2022-07-22 17:54:24,260 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:54:24,260 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:54:24,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:54:24,303 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@b3a5c71, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20bfba80 [2022-07-22 17:54:24,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:54:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 131 states have (on average 1.8396946564885497) internal successors, (241), 134 states have internal predecessors, (241), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 17:54:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:24,322 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:24,323 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] [2022-07-22 17:54:24,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:24,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1999309542, now seen corresponding path program 1 times [2022-07-22 17:54:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:24,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78940335] [2022-07-22 17:54:24,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:24,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:24,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:24,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78940335] [2022-07-22 17:54:24,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78940335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:24,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:24,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:24,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308516484] [2022-07-22 17:54:24,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:24,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:24,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:24,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:24,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:24,532 INFO L87 Difference]: Start difference. First operand has 136 states, 131 states have (on average 1.8396946564885497) internal successors, (241), 134 states have internal predecessors, (241), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:24,593 INFO L93 Difference]: Finished difference Result 262 states and 476 transitions. [2022-07-22 17:54:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:24,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:24,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:24,609 INFO L225 Difference]: With dead ends: 262 [2022-07-22 17:54:24,610 INFO L226 Difference]: Without dead ends: 130 [2022-07-22 17:54:24,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:24,616 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 223 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:24,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 227 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:24,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-07-22 17:54:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-07-22 17:54:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.7480314960629921) internal successors, (222), 128 states have internal predecessors, (222), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 224 transitions. [2022-07-22 17:54:24,674 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 224 transitions. Word has length 37 [2022-07-22 17:54:24,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:24,674 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 224 transitions. [2022-07-22 17:54:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 224 transitions. [2022-07-22 17:54:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:24,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:24,677 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] [2022-07-22 17:54:24,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:54:24,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:24,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:24,680 INFO L85 PathProgramCache]: Analyzing trace with hash 2020898140, now seen corresponding path program 1 times [2022-07-22 17:54:24,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:24,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703286427] [2022-07-22 17:54:24,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:24,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703286427] [2022-07-22 17:54:24,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703286427] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:24,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:24,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:24,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258170544] [2022-07-22 17:54:24,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:24,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:24,746 INFO L87 Difference]: Start difference. First operand 130 states and 224 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:24,793 INFO L93 Difference]: Finished difference Result 352 states and 604 transitions. [2022-07-22 17:54:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 17:54:24,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:24,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:24,795 INFO L225 Difference]: With dead ends: 352 [2022-07-22 17:54:24,795 INFO L226 Difference]: Without dead ends: 225 [2022-07-22 17:54:24,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:24,797 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 582 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:24,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 376 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:24,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-07-22 17:54:24,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 220. [2022-07-22 17:54:24,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.728110599078341) internal successors, (375), 218 states have internal predecessors, (375), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 377 transitions. [2022-07-22 17:54:24,809 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 377 transitions. Word has length 37 [2022-07-22 17:54:24,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:24,809 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 377 transitions. [2022-07-22 17:54:24,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,809 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 377 transitions. [2022-07-22 17:54:24,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:24,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:24,810 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] [2022-07-22 17:54:24,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:54:24,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2043530394, now seen corresponding path program 1 times [2022-07-22 17:54:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:24,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470883283] [2022-07-22 17:54:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:24,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:24,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470883283] [2022-07-22 17:54:24,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470883283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:24,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:24,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:24,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974629139] [2022-07-22 17:54:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:24,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:24,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:24,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:24,851 INFO L87 Difference]: Start difference. First operand 220 states and 377 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:24,882 INFO L93 Difference]: Finished difference Result 431 states and 741 transitions. [2022-07-22 17:54:24,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:24,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:24,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:24,883 INFO L225 Difference]: With dead ends: 431 [2022-07-22 17:54:24,883 INFO L226 Difference]: Without dead ends: 220 [2022-07-22 17:54:24,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:24,885 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 193 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:24,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 207 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:24,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-07-22 17:54:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-07-22 17:54:24,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.672811059907834) internal successors, (363), 218 states have internal predecessors, (363), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 365 transitions. [2022-07-22 17:54:24,894 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 365 transitions. Word has length 37 [2022-07-22 17:54:24,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:24,895 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 365 transitions. [2022-07-22 17:54:24,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 365 transitions. [2022-07-22 17:54:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:24,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:24,896 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] [2022-07-22 17:54:24,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:54:24,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:24,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1841385886, now seen corresponding path program 1 times [2022-07-22 17:54:24,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:24,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505158493] [2022-07-22 17:54:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:24,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:24,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:24,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505158493] [2022-07-22 17:54:24,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505158493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:24,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:24,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:24,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804382688] [2022-07-22 17:54:24,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:24,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:24,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:24,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:24,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:24,929 INFO L87 Difference]: Start difference. First operand 220 states and 365 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:24,986 INFO L93 Difference]: Finished difference Result 601 states and 998 transitions. [2022-07-22 17:54:24,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:24,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:24,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:24,988 INFO L225 Difference]: With dead ends: 601 [2022-07-22 17:54:24,988 INFO L226 Difference]: Without dead ends: 391 [2022-07-22 17:54:24,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:24,990 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 375 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:24,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 468 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:24,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-07-22 17:54:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 220. [2022-07-22 17:54:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.6589861751152073) internal successors, (360), 218 states have internal predecessors, (360), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:24,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 362 transitions. [2022-07-22 17:54:24,999 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 362 transitions. Word has length 37 [2022-07-22 17:54:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:24,999 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 362 transitions. [2022-07-22 17:54:25,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 362 transitions. [2022-07-22 17:54:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,001 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] [2022-07-22 17:54:25,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:54:25,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1331912796, now seen corresponding path program 1 times [2022-07-22 17:54:25,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608820699] [2022-07-22 17:54:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608820699] [2022-07-22 17:54:25,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608820699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353857525] [2022-07-22 17:54:25,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,042 INFO L87 Difference]: Start difference. First operand 220 states and 362 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,108 INFO L93 Difference]: Finished difference Result 602 states and 992 transitions. [2022-07-22 17:54:25,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:25,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,110 INFO L225 Difference]: With dead ends: 602 [2022-07-22 17:54:25,110 INFO L226 Difference]: Without dead ends: 393 [2022-07-22 17:54:25,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,115 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 373 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 475 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-07-22 17:54:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 220. [2022-07-22 17:54:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 217 states have (on average 1.6451612903225807) internal successors, (357), 218 states have internal predecessors, (357), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 359 transitions. [2022-07-22 17:54:25,131 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 359 transitions. Word has length 37 [2022-07-22 17:54:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,134 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 359 transitions. [2022-07-22 17:54:25,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 359 transitions. [2022-07-22 17:54:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,137 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] [2022-07-22 17:54:25,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:54:25,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1039826466, now seen corresponding path program 1 times [2022-07-22 17:54:25,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872227896] [2022-07-22 17:54:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872227896] [2022-07-22 17:54:25,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872227896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034108760] [2022-07-22 17:54:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,189 INFO L87 Difference]: Start difference. First operand 220 states and 359 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,247 INFO L93 Difference]: Finished difference Result 616 states and 1005 transitions. [2022-07-22 17:54:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,249 INFO L225 Difference]: With dead ends: 616 [2022-07-22 17:54:25,249 INFO L226 Difference]: Without dead ends: 408 [2022-07-22 17:54:25,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,253 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 379 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 485 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-07-22 17:54:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 226. [2022-07-22 17:54:25,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 223 states have (on average 1.6188340807174888) internal successors, (361), 224 states have internal predecessors, (361), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 363 transitions. [2022-07-22 17:54:25,267 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 363 transitions. Word has length 37 [2022-07-22 17:54:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,268 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 363 transitions. [2022-07-22 17:54:25,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 363 transitions. [2022-07-22 17:54:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,271 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] [2022-07-22 17:54:25,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:54:25,271 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,272 INFO L85 PathProgramCache]: Analyzing trace with hash -977786852, now seen corresponding path program 1 times [2022-07-22 17:54:25,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452217576] [2022-07-22 17:54:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452217576] [2022-07-22 17:54:25,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452217576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643232234] [2022-07-22 17:54:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,323 INFO L87 Difference]: Start difference. First operand 226 states and 363 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,389 INFO L93 Difference]: Finished difference Result 775 states and 1243 transitions. [2022-07-22 17:54:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:25,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,392 INFO L225 Difference]: With dead ends: 775 [2022-07-22 17:54:25,392 INFO L226 Difference]: Without dead ends: 562 [2022-07-22 17:54:25,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,393 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 375 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 583 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-22 17:54:25,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 371. [2022-07-22 17:54:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 368 states have (on average 1.6032608695652173) internal successors, (590), 369 states have internal predecessors, (590), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 592 transitions. [2022-07-22 17:54:25,407 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 592 transitions. Word has length 37 [2022-07-22 17:54:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,407 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 592 transitions. [2022-07-22 17:54:25,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 592 transitions. [2022-07-22 17:54:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,408 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] [2022-07-22 17:54:25,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:54:25,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,410 INFO L85 PathProgramCache]: Analyzing trace with hash -837238242, now seen corresponding path program 1 times [2022-07-22 17:54:25,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484875083] [2022-07-22 17:54:25,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484875083] [2022-07-22 17:54:25,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484875083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:25,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346693977] [2022-07-22 17:54:25,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:25,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:25,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:25,455 INFO L87 Difference]: Start difference. First operand 371 states and 592 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,483 INFO L93 Difference]: Finished difference Result 888 states and 1421 transitions. [2022-07-22 17:54:25,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:25,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,485 INFO L225 Difference]: With dead ends: 888 [2022-07-22 17:54:25,485 INFO L226 Difference]: Without dead ends: 541 [2022-07-22 17:54:25,486 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 [2022-07-22 17:54:25,486 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 181 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 351 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2022-07-22 17:54:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 537. [2022-07-22 17:54:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 534 states have (on average 1.599250936329588) internal successors, (854), 535 states have internal predecessors, (854), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 856 transitions. [2022-07-22 17:54:25,510 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 856 transitions. Word has length 37 [2022-07-22 17:54:25,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,510 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 856 transitions. [2022-07-22 17:54:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 856 transitions. [2022-07-22 17:54:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,512 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] [2022-07-22 17:54:25,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:54:25,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,513 INFO L85 PathProgramCache]: Analyzing trace with hash 488921634, now seen corresponding path program 1 times [2022-07-22 17:54:25,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427625139] [2022-07-22 17:54:25,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427625139] [2022-07-22 17:54:25,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427625139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975786293] [2022-07-22 17:54:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,540 INFO L87 Difference]: Start difference. First operand 537 states and 856 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,590 INFO L93 Difference]: Finished difference Result 1369 states and 2183 transitions. [2022-07-22 17:54:25,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 17:54:25,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,594 INFO L225 Difference]: With dead ends: 1369 [2022-07-22 17:54:25,594 INFO L226 Difference]: Without dead ends: 849 [2022-07-22 17:54:25,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,596 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 491 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 337 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-22 17:54:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 537. [2022-07-22 17:54:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 534 states have (on average 1.5842696629213484) internal successors, (846), 535 states have internal predecessors, (846), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 848 transitions. [2022-07-22 17:54:25,614 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 848 transitions. Word has length 37 [2022-07-22 17:54:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,614 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 848 transitions. [2022-07-22 17:54:25,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 848 transitions. [2022-07-22 17:54:25,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,615 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] [2022-07-22 17:54:25,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:54:25,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1505223072, now seen corresponding path program 1 times [2022-07-22 17:54:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377689060] [2022-07-22 17:54:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377689060] [2022-07-22 17:54:25,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377689060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991591113] [2022-07-22 17:54:25,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,655 INFO L87 Difference]: Start difference. First operand 537 states and 848 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,732 INFO L93 Difference]: Finished difference Result 1369 states and 2160 transitions. [2022-07-22 17:54:25,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 17:54:25,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,735 INFO L225 Difference]: With dead ends: 1369 [2022-07-22 17:54:25,736 INFO L226 Difference]: Without dead ends: 855 [2022-07-22 17:54:25,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,737 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 475 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 326 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-07-22 17:54:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 537. [2022-07-22 17:54:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 534 states have (on average 1.5692883895131087) internal successors, (838), 535 states have internal predecessors, (838), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 840 transitions. [2022-07-22 17:54:25,759 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 840 transitions. Word has length 37 [2022-07-22 17:54:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,759 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 840 transitions. [2022-07-22 17:54:25,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 840 transitions. [2022-07-22 17:54:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,760 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] [2022-07-22 17:54:25,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 17:54:25,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1768675870, now seen corresponding path program 1 times [2022-07-22 17:54:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490636042] [2022-07-22 17:54:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490636042] [2022-07-22 17:54:25,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490636042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:25,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578808481] [2022-07-22 17:54:25,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:25,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:25,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:25,782 INFO L87 Difference]: Start difference. First operand 537 states and 840 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,840 INFO L93 Difference]: Finished difference Result 1296 states and 2024 transitions. [2022-07-22 17:54:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 17:54:25,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,843 INFO L225 Difference]: With dead ends: 1296 [2022-07-22 17:54:25,843 INFO L226 Difference]: Without dead ends: 776 [2022-07-22 17:54:25,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:25,845 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 487 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 356 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2022-07-22 17:54:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 585. [2022-07-22 17:54:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 582 states have (on average 1.5378006872852235) internal successors, (895), 583 states have internal predecessors, (895), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 897 transitions. [2022-07-22 17:54:25,862 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 897 transitions. Word has length 37 [2022-07-22 17:54:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,862 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 897 transitions. [2022-07-22 17:54:25,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 897 transitions. [2022-07-22 17:54:25,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 17:54:25,863 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,863 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] [2022-07-22 17:54:25,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 17:54:25,864 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,864 INFO L85 PathProgramCache]: Analyzing trace with hash 757558620, now seen corresponding path program 1 times [2022-07-22 17:54:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235697466] [2022-07-22 17:54:25,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235697466] [2022-07-22 17:54:25,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235697466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399600622] [2022-07-22 17:54:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:25,880 INFO L87 Difference]: Start difference. First operand 585 states and 897 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:25,930 INFO L93 Difference]: Finished difference Result 1388 states and 2132 transitions. [2022-07-22 17:54:25,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:25,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-07-22 17:54:25,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:25,935 INFO L225 Difference]: With dead ends: 1388 [2022-07-22 17:54:25,935 INFO L226 Difference]: Without dead ends: 817 [2022-07-22 17:54:25,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:25,937 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 118 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:25,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 320 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-07-22 17:54:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 814. [2022-07-22 17:54:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 811 states have (on average 1.5178791615289766) internal successors, (1231), 812 states have internal predecessors, (1231), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1233 transitions. [2022-07-22 17:54:25,961 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1233 transitions. Word has length 37 [2022-07-22 17:54:25,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:25,961 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 1233 transitions. [2022-07-22 17:54:25,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1233 transitions. [2022-07-22 17:54:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 17:54:25,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:25,962 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 17:54:25,962 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:25,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1472514580, now seen corresponding path program 1 times [2022-07-22 17:54:25,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:25,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560916603] [2022-07-22 17:54:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:25,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:25,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:25,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560916603] [2022-07-22 17:54:25,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560916603] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:25,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:25,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:25,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722748810] [2022-07-22 17:54:25,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:25,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:25,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:25,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:25,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:25,982 INFO L87 Difference]: Start difference. First operand 814 states and 1233 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:26,020 INFO L93 Difference]: Finished difference Result 2023 states and 3098 transitions. [2022-07-22 17:54:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-07-22 17:54:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:26,024 INFO L225 Difference]: With dead ends: 2023 [2022-07-22 17:54:26,024 INFO L226 Difference]: Without dead ends: 1236 [2022-07-22 17:54:26,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,027 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 85 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:26,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 426 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:26,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-07-22 17:54:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1232. [2022-07-22 17:54:26,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1229 states have (on average 1.5256305939788446) internal successors, (1875), 1230 states have internal predecessors, (1875), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1877 transitions. [2022-07-22 17:54:26,073 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1877 transitions. Word has length 48 [2022-07-22 17:54:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:26,073 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 1877 transitions. [2022-07-22 17:54:26,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1877 transitions. [2022-07-22 17:54:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 17:54:26,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:26,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:26,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 17:54:26,075 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:26,075 INFO L85 PathProgramCache]: Analyzing trace with hash -576873262, now seen corresponding path program 1 times [2022-07-22 17:54:26,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:26,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910628025] [2022-07-22 17:54:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:26,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 17:54:26,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:26,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910628025] [2022-07-22 17:54:26,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910628025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:26,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:26,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798997747] [2022-07-22 17:54:26,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:26,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:26,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,094 INFO L87 Difference]: Start difference. First operand 1232 states and 1877 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:26,129 INFO L93 Difference]: Finished difference Result 2415 states and 3695 transitions. [2022-07-22 17:54:26,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:26,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-07-22 17:54:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:26,132 INFO L225 Difference]: With dead ends: 2415 [2022-07-22 17:54:26,133 INFO L226 Difference]: Without dead ends: 1210 [2022-07-22 17:54:26,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,134 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 183 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:26,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 186 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-07-22 17:54:26,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2022-07-22 17:54:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1207 states have (on average 1.5310687655343829) internal successors, (1848), 1208 states have internal predecessors, (1848), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1850 transitions. [2022-07-22 17:54:26,169 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1850 transitions. Word has length 48 [2022-07-22 17:54:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:26,169 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1850 transitions. [2022-07-22 17:54:26,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1850 transitions. [2022-07-22 17:54:26,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-22 17:54:26,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:26,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:26,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 17:54:26,171 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:26,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:26,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1940711686, now seen corresponding path program 1 times [2022-07-22 17:54:26,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:26,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420022007] [2022-07-22 17:54:26,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:26,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:26,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:26,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420022007] [2022-07-22 17:54:26,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420022007] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:26,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:26,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:26,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804856641] [2022-07-22 17:54:26,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:26,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:26,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,189 INFO L87 Difference]: Start difference. First operand 1210 states and 1850 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:26,252 INFO L93 Difference]: Finished difference Result 3098 states and 4789 transitions. [2022-07-22 17:54:26,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-22 17:54:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:26,257 INFO L225 Difference]: With dead ends: 3098 [2022-07-22 17:54:26,257 INFO L226 Difference]: Without dead ends: 1915 [2022-07-22 17:54:26,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,259 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 86 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:26,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 330 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-07-22 17:54:26,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1911. [2022-07-22 17:54:26,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1908 states have (on average 1.540356394129979) internal successors, (2939), 1909 states have internal predecessors, (2939), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2941 transitions. [2022-07-22 17:54:26,327 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2941 transitions. Word has length 49 [2022-07-22 17:54:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:26,327 INFO L495 AbstractCegarLoop]: Abstraction has 1911 states and 2941 transitions. [2022-07-22 17:54:26,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2941 transitions. [2022-07-22 17:54:26,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-22 17:54:26,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:26,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:26,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 17:54:26,329 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:26,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1304018632, now seen corresponding path program 1 times [2022-07-22 17:54:26,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:26,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761936760] [2022-07-22 17:54:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:26,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:26,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761936760] [2022-07-22 17:54:26,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761936760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:26,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:26,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:26,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116531217] [2022-07-22 17:54:26,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:26,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:26,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:26,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:26,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,348 INFO L87 Difference]: Start difference. First operand 1911 states and 2941 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:26,453 INFO L93 Difference]: Finished difference Result 5154 states and 8027 transitions. [2022-07-22 17:54:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:26,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-22 17:54:26,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:26,462 INFO L225 Difference]: With dead ends: 5154 [2022-07-22 17:54:26,463 INFO L226 Difference]: Without dead ends: 3272 [2022-07-22 17:54:26,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,466 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 90 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:26,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 397 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2022-07-22 17:54:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3268. [2022-07-22 17:54:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 3265 states have (on average 1.552833078101072) internal successors, (5070), 3266 states have internal predecessors, (5070), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 5072 transitions. [2022-07-22 17:54:26,576 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 5072 transitions. Word has length 50 [2022-07-22 17:54:26,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:26,576 INFO L495 AbstractCegarLoop]: Abstraction has 3268 states and 5072 transitions. [2022-07-22 17:54:26,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 5072 transitions. [2022-07-22 17:54:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-22 17:54:26,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:26,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:26,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 17:54:26,578 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:26,578 INFO L85 PathProgramCache]: Analyzing trace with hash -745369210, now seen corresponding path program 1 times [2022-07-22 17:54:26,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:26,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045005053] [2022-07-22 17:54:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:26,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 17:54:26,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:26,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045005053] [2022-07-22 17:54:26,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045005053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:26,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:26,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:26,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789657636] [2022-07-22 17:54:26,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:26,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:26,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:26,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:26,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,608 INFO L87 Difference]: Start difference. First operand 3268 states and 5072 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:26,712 INFO L93 Difference]: Finished difference Result 6485 states and 10085 transitions. [2022-07-22 17:54:26,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:26,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-22 17:54:26,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:26,722 INFO L225 Difference]: With dead ends: 6485 [2022-07-22 17:54:26,722 INFO L226 Difference]: Without dead ends: 3246 [2022-07-22 17:54:26,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:26,727 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 180 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:26,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 185 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3246 states. [2022-07-22 17:54:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3246 to 3246. [2022-07-22 17:54:26,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3243 states have (on average 1.555349984582177) internal successors, (5044), 3244 states have internal predecessors, (5044), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 5046 transitions. [2022-07-22 17:54:26,838 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 5046 transitions. Word has length 50 [2022-07-22 17:54:26,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:26,838 INFO L495 AbstractCegarLoop]: Abstraction has 3246 states and 5046 transitions. [2022-07-22 17:54:26,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 5046 transitions. [2022-07-22 17:54:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-22 17:54:26,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:26,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:26,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 17:54:26,840 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:26,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 251128390, now seen corresponding path program 1 times [2022-07-22 17:54:26,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:26,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084174634] [2022-07-22 17:54:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:26,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:26,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084174634] [2022-07-22 17:54:26,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084174634] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:26,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:26,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:26,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888743438] [2022-07-22 17:54:26,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:26,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:26,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:26,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:26,860 INFO L87 Difference]: Start difference. First operand 3246 states and 5046 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:27,063 INFO L93 Difference]: Finished difference Result 8233 states and 12817 transitions. [2022-07-22 17:54:27,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:27,064 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-07-22 17:54:27,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:27,076 INFO L225 Difference]: With dead ends: 8233 [2022-07-22 17:54:27,077 INFO L226 Difference]: Without dead ends: 4223 [2022-07-22 17:54:27,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:27,083 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 405 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:27,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 309 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:27,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-07-22 17:54:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 4223. [2022-07-22 17:54:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4223 states, 4220 states have (on average 1.542654028436019) internal successors, (6510), 4221 states have internal predecessors, (6510), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4223 states to 4223 states and 6512 transitions. [2022-07-22 17:54:27,243 INFO L78 Accepts]: Start accepts. Automaton has 4223 states and 6512 transitions. Word has length 51 [2022-07-22 17:54:27,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:27,244 INFO L495 AbstractCegarLoop]: Abstraction has 4223 states and 6512 transitions. [2022-07-22 17:54:27,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4223 states and 6512 transitions. [2022-07-22 17:54:27,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 17:54:27,248 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:27,248 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:27,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 17:54:27,249 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:27,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:27,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1269450183, now seen corresponding path program 1 times [2022-07-22 17:54:27,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:27,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065170899] [2022-07-22 17:54:27,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:27,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:27,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065170899] [2022-07-22 17:54:27,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065170899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:27,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:27,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:54:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044889116] [2022-07-22 17:54:27,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:27,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:54:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:54:27,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:27,281 INFO L87 Difference]: Start difference. First operand 4223 states and 6512 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:27,501 INFO L93 Difference]: Finished difference Result 10740 states and 16466 transitions. [2022-07-22 17:54:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 17:54:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-07-22 17:54:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:27,533 INFO L225 Difference]: With dead ends: 10740 [2022-07-22 17:54:27,533 INFO L226 Difference]: Without dead ends: 6540 [2022-07-22 17:54:27,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:54:27,539 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 696 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:27,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 526 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6540 states. [2022-07-22 17:54:27,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6540 to 4926. [2022-07-22 17:54:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4926 states, 4923 states have (on average 1.5118829981718465) internal successors, (7443), 4924 states have internal predecessors, (7443), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4926 states to 4926 states and 7445 transitions. [2022-07-22 17:54:27,732 INFO L78 Accepts]: Start accepts. Automaton has 4926 states and 7445 transitions. Word has length 57 [2022-07-22 17:54:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:27,732 INFO L495 AbstractCegarLoop]: Abstraction has 4926 states and 7445 transitions. [2022-07-22 17:54:27,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4926 states and 7445 transitions. [2022-07-22 17:54:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 17:54:27,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:27,735 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:27,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 17:54:27,735 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:27,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash -846224771, now seen corresponding path program 1 times [2022-07-22 17:54:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:27,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344580196] [2022-07-22 17:54:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344580196] [2022-07-22 17:54:27,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344580196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:27,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:27,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:27,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757271569] [2022-07-22 17:54:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:27,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:27,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:27,755 INFO L87 Difference]: Start difference. First operand 4926 states and 7445 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:27,976 INFO L93 Difference]: Finished difference Result 10199 states and 15380 transitions. [2022-07-22 17:54:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-07-22 17:54:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:27,993 INFO L225 Difference]: With dead ends: 10199 [2022-07-22 17:54:27,993 INFO L226 Difference]: Without dead ends: 5302 [2022-07-22 17:54:28,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:28,002 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 132 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:28,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 315 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2022-07-22 17:54:28,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 5270. [2022-07-22 17:54:28,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5270 states, 5267 states have (on average 1.4649705714828176) internal successors, (7716), 5268 states have internal predecessors, (7716), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5270 states to 5270 states and 7718 transitions. [2022-07-22 17:54:28,278 INFO L78 Accepts]: Start accepts. Automaton has 5270 states and 7718 transitions. Word has length 91 [2022-07-22 17:54:28,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:28,279 INFO L495 AbstractCegarLoop]: Abstraction has 5270 states and 7718 transitions. [2022-07-22 17:54:28,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5270 states and 7718 transitions. [2022-07-22 17:54:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 17:54:28,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:28,283 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 17:54:28,283 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:28,283 INFO L85 PathProgramCache]: Analyzing trace with hash 692618235, now seen corresponding path program 1 times [2022-07-22 17:54:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:28,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616032481] [2022-07-22 17:54:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:28,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:28,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616032481] [2022-07-22 17:54:28,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616032481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:28,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:28,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:28,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437031444] [2022-07-22 17:54:28,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:28,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:28,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:28,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:28,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:28,303 INFO L87 Difference]: Start difference. First operand 5270 states and 7718 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:28,472 INFO L93 Difference]: Finished difference Result 11053 states and 16146 transitions. [2022-07-22 17:54:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:28,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-07-22 17:54:28,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:28,484 INFO L225 Difference]: With dead ends: 11053 [2022-07-22 17:54:28,484 INFO L226 Difference]: Without dead ends: 5824 [2022-07-22 17:54:28,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:28,492 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 131 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:28,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 314 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2022-07-22 17:54:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 5776. [2022-07-22 17:54:28,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5776 states, 5773 states have (on average 1.4188463537155724) internal successors, (8191), 5774 states have internal predecessors, (8191), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5776 states to 5776 states and 8193 transitions. [2022-07-22 17:54:28,724 INFO L78 Accepts]: Start accepts. Automaton has 5776 states and 8193 transitions. Word has length 92 [2022-07-22 17:54:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:28,725 INFO L495 AbstractCegarLoop]: Abstraction has 5776 states and 8193 transitions. [2022-07-22 17:54:28,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 5776 states and 8193 transitions. [2022-07-22 17:54:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-22 17:54:28,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:28,728 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:28,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 17:54:28,729 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1736291809, now seen corresponding path program 1 times [2022-07-22 17:54:28,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:28,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621226565] [2022-07-22 17:54:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:28,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:54:28,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:28,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621226565] [2022-07-22 17:54:28,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621226565] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:28,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:28,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:28,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775178407] [2022-07-22 17:54:28,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:28,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:28,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:28,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:28,752 INFO L87 Difference]: Start difference. First operand 5776 states and 8193 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:28,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:28,921 INFO L93 Difference]: Finished difference Result 11872 states and 16850 transitions. [2022-07-22 17:54:28,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:28,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2022-07-22 17:54:28,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:28,931 INFO L225 Difference]: With dead ends: 11872 [2022-07-22 17:54:28,931 INFO L226 Difference]: Without dead ends: 6157 [2022-07-22 17:54:28,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:28,939 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 127 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:28,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 311 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6157 states. [2022-07-22 17:54:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6157 to 5538. [2022-07-22 17:54:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5538 states, 5535 states have (on average 1.3609756097560977) internal successors, (7533), 5536 states have internal predecessors, (7533), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 7535 transitions. [2022-07-22 17:54:29,137 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 7535 transitions. Word has length 93 [2022-07-22 17:54:29,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:29,137 INFO L495 AbstractCegarLoop]: Abstraction has 5538 states and 7535 transitions. [2022-07-22 17:54:29,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 7535 transitions. [2022-07-22 17:54:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 17:54:29,141 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:29,141 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:29,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 17:54:29,141 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:29,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash -370455463, now seen corresponding path program 1 times [2022-07-22 17:54:29,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:29,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753327094] [2022-07-22 17:54:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:29,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 17:54:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:29,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753327094] [2022-07-22 17:54:29,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753327094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:29,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:29,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:29,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093585781] [2022-07-22 17:54:29,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:29,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:29,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:29,164 INFO L87 Difference]: Start difference. First operand 5538 states and 7535 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:29,423 INFO L93 Difference]: Finished difference Result 10334 states and 13967 transitions. [2022-07-22 17:54:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:29,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-07-22 17:54:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:29,430 INFO L225 Difference]: With dead ends: 10334 [2022-07-22 17:54:29,430 INFO L226 Difference]: Without dead ends: 5283 [2022-07-22 17:54:29,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:29,435 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 432 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:29,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 459 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5283 states. [2022-07-22 17:54:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5283 to 5167. [2022-07-22 17:54:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5164 states have (on average 1.311192873741286) internal successors, (6771), 5165 states have internal predecessors, (6771), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6773 transitions. [2022-07-22 17:54:29,671 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6773 transitions. Word has length 94 [2022-07-22 17:54:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:29,671 INFO L495 AbstractCegarLoop]: Abstraction has 5167 states and 6773 transitions. [2022-07-22 17:54:29,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6773 transitions. [2022-07-22 17:54:29,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-22 17:54:29,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:29,680 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:29,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 17:54:29,680 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:29,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:29,680 INFO L85 PathProgramCache]: Analyzing trace with hash -924986801, now seen corresponding path program 1 times [2022-07-22 17:54:29,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:29,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684224413] [2022-07-22 17:54:29,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:29,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:29,705 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:54:29,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:29,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684224413] [2022-07-22 17:54:29,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684224413] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:29,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:29,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:29,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820298784] [2022-07-22 17:54:29,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:29,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:29,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:29,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:29,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:29,707 INFO L87 Difference]: Start difference. First operand 5167 states and 6773 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:29,920 INFO L93 Difference]: Finished difference Result 9868 states and 12922 transitions. [2022-07-22 17:54:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-07-22 17:54:29,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:29,928 INFO L225 Difference]: With dead ends: 9868 [2022-07-22 17:54:29,928 INFO L226 Difference]: Without dead ends: 5113 [2022-07-22 17:54:29,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:29,934 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:29,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 309 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2022-07-22 17:54:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 5113. [2022-07-22 17:54:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5110 states have (on average 1.3043052837573386) internal successors, (6665), 5111 states have internal predecessors, (6665), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 6667 transitions. [2022-07-22 17:54:30,171 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 6667 transitions. Word has length 123 [2022-07-22 17:54:30,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:30,172 INFO L495 AbstractCegarLoop]: Abstraction has 5113 states and 6667 transitions. [2022-07-22 17:54:30,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 6667 transitions. [2022-07-22 17:54:30,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-22 17:54:30,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:30,180 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:30,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-22 17:54:30,181 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:30,181 INFO L85 PathProgramCache]: Analyzing trace with hash -974943913, now seen corresponding path program 1 times [2022-07-22 17:54:30,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:30,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752609375] [2022-07-22 17:54:30,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:30,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:54:30,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:30,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752609375] [2022-07-22 17:54:30,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752609375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:30,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:30,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:30,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540779895] [2022-07-22 17:54:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:30,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:30,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:30,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:30,205 INFO L87 Difference]: Start difference. First operand 5113 states and 6667 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:30,412 INFO L93 Difference]: Finished difference Result 9103 states and 11891 transitions. [2022-07-22 17:54:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:30,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2022-07-22 17:54:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:30,419 INFO L225 Difference]: With dead ends: 9103 [2022-07-22 17:54:30,419 INFO L226 Difference]: Without dead ends: 5031 [2022-07-22 17:54:30,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:30,423 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 314 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:30,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 320 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5031 states. [2022-07-22 17:54:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5031 to 5027. [2022-07-22 17:54:30,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5027 states, 5024 states have (on average 1.2818471337579618) internal successors, (6440), 5025 states have internal predecessors, (6440), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 6442 transitions. [2022-07-22 17:54:30,593 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 6442 transitions. Word has length 136 [2022-07-22 17:54:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:30,593 INFO L495 AbstractCegarLoop]: Abstraction has 5027 states and 6442 transitions. [2022-07-22 17:54:30,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 6442 transitions. [2022-07-22 17:54:30,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-22 17:54:30,600 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:30,600 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:30,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 17:54:30,601 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:30,601 INFO L85 PathProgramCache]: Analyzing trace with hash 45217767, now seen corresponding path program 1 times [2022-07-22 17:54:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:30,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087930616] [2022-07-22 17:54:30,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:30,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:30,621 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 17:54:30,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:30,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087930616] [2022-07-22 17:54:30,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087930616] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:30,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:30,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:30,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820206957] [2022-07-22 17:54:30,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:30,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:30,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:30,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:30,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:30,623 INFO L87 Difference]: Start difference. First operand 5027 states and 6442 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:30,785 INFO L93 Difference]: Finished difference Result 9635 states and 12336 transitions. [2022-07-22 17:54:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:30,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-22 17:54:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:30,792 INFO L225 Difference]: With dead ends: 9635 [2022-07-22 17:54:30,793 INFO L226 Difference]: Without dead ends: 5027 [2022-07-22 17:54:30,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:30,799 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 25 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:30,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 308 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2022-07-22 17:54:30,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 4987. [2022-07-22 17:54:30,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4984 states have (on average 1.2756821829855538) internal successors, (6358), 4985 states have internal predecessors, (6358), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 6360 transitions. [2022-07-22 17:54:30,978 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 6360 transitions. Word has length 142 [2022-07-22 17:54:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:30,979 INFO L495 AbstractCegarLoop]: Abstraction has 4987 states and 6360 transitions. [2022-07-22 17:54:30,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 6360 transitions. [2022-07-22 17:54:30,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-22 17:54:30,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:30,986 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:30,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-22 17:54:30,986 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:30,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash -400505291, now seen corresponding path program 1 times [2022-07-22 17:54:30,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837498606] [2022-07-22 17:54:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:31,006 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 17:54:31,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:31,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837498606] [2022-07-22 17:54:31,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837498606] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:31,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:31,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:31,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333365051] [2022-07-22 17:54:31,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:31,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:31,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:31,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:31,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:31,008 INFO L87 Difference]: Start difference. First operand 4987 states and 6360 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:31,198 INFO L93 Difference]: Finished difference Result 9583 states and 12214 transitions. [2022-07-22 17:54:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:31,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-22 17:54:31,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:31,206 INFO L225 Difference]: With dead ends: 9583 [2022-07-22 17:54:31,206 INFO L226 Difference]: Without dead ends: 4996 [2022-07-22 17:54:31,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:31,211 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 21 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 307 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:31,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2022-07-22 17:54:31,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4956. [2022-07-22 17:54:31,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4956 states, 4953 states have (on average 1.2691298203109227) internal successors, (6286), 4954 states have internal predecessors, (6286), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4956 states to 4956 states and 6288 transitions. [2022-07-22 17:54:31,385 INFO L78 Accepts]: Start accepts. Automaton has 4956 states and 6288 transitions. Word has length 142 [2022-07-22 17:54:31,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:31,385 INFO L495 AbstractCegarLoop]: Abstraction has 4956 states and 6288 transitions. [2022-07-22 17:54:31,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4956 states and 6288 transitions. [2022-07-22 17:54:31,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-22 17:54:31,392 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:31,392 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:31,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 17:54:31,392 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash 428342766, now seen corresponding path program 1 times [2022-07-22 17:54:31,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:31,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055500613] [2022-07-22 17:54:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:31,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:31,414 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 17:54:31,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:31,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055500613] [2022-07-22 17:54:31,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055500613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:31,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:31,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:31,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071200837] [2022-07-22 17:54:31,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:31,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:31,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:31,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:31,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:31,416 INFO L87 Difference]: Start difference. First operand 4956 states and 6288 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:31,555 INFO L93 Difference]: Finished difference Result 8098 states and 10321 transitions. [2022-07-22 17:54:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:31,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-07-22 17:54:31,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:31,562 INFO L225 Difference]: With dead ends: 8098 [2022-07-22 17:54:31,562 INFO L226 Difference]: Without dead ends: 3542 [2022-07-22 17:54:31,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:31,567 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 286 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:31,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 299 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:31,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2022-07-22 17:54:31,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3538. [2022-07-22 17:54:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3538 states, 3535 states have (on average 1.2393210749646393) internal successors, (4381), 3536 states have internal predecessors, (4381), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 4383 transitions. [2022-07-22 17:54:31,703 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 4383 transitions. Word has length 146 [2022-07-22 17:54:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:31,703 INFO L495 AbstractCegarLoop]: Abstraction has 3538 states and 4383 transitions. [2022-07-22 17:54:31,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 4383 transitions. [2022-07-22 17:54:31,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-22 17:54:31,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:31,708 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:31,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 17:54:31,708 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:31,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:31,709 INFO L85 PathProgramCache]: Analyzing trace with hash 830883552, now seen corresponding path program 1 times [2022-07-22 17:54:31,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:31,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107969863] [2022-07-22 17:54:31,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:31,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:31,733 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 17:54:31,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:31,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107969863] [2022-07-22 17:54:31,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107969863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:31,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:31,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:54:31,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537133542] [2022-07-22 17:54:31,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:31,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 17:54:31,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:31,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 17:54:31,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 17:54:31,735 INFO L87 Difference]: Start difference. First operand 3538 states and 4383 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:31,863 INFO L93 Difference]: Finished difference Result 5731 states and 7105 transitions. [2022-07-22 17:54:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:54:31,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2022-07-22 17:54:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:31,867 INFO L225 Difference]: With dead ends: 5731 [2022-07-22 17:54:31,867 INFO L226 Difference]: Without dead ends: 2274 [2022-07-22 17:54:31,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:54:31,869 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 290 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:31,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 292 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:31,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2022-07-22 17:54:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2270. [2022-07-22 17:54:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2270 states, 2267 states have (on average 1.2090868989854433) internal successors, (2741), 2268 states have internal predecessors, (2741), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2743 transitions. [2022-07-22 17:54:31,947 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2743 transitions. Word has length 146 [2022-07-22 17:54:31,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:31,947 INFO L495 AbstractCegarLoop]: Abstraction has 2270 states and 2743 transitions. [2022-07-22 17:54:31,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2743 transitions. [2022-07-22 17:54:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-22 17:54:31,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:31,949 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:31,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 17:54:31,949 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:31,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:31,950 INFO L85 PathProgramCache]: Analyzing trace with hash 84783450, now seen corresponding path program 1 times [2022-07-22 17:54:31,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:31,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204774211] [2022-07-22 17:54:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-22 17:54:31,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:31,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204774211] [2022-07-22 17:54:31,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204774211] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:31,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:31,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:31,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555124770] [2022-07-22 17:54:31,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:31,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:31,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:31,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:31,991 INFO L87 Difference]: Start difference. First operand 2270 states and 2743 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:32,067 INFO L93 Difference]: Finished difference Result 4102 states and 4994 transitions. [2022-07-22 17:54:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2022-07-22 17:54:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:32,069 INFO L225 Difference]: With dead ends: 4102 [2022-07-22 17:54:32,069 INFO L226 Difference]: Without dead ends: 2208 [2022-07-22 17:54:32,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,071 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:32,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 308 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2022-07-22 17:54:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 2120. [2022-07-22 17:54:32,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 2117 states have (on average 1.1917808219178083) internal successors, (2523), 2118 states have internal predecessors, (2523), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2525 transitions. [2022-07-22 17:54:32,146 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2525 transitions. Word has length 185 [2022-07-22 17:54:32,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:32,146 INFO L495 AbstractCegarLoop]: Abstraction has 2120 states and 2525 transitions. [2022-07-22 17:54:32,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2525 transitions. [2022-07-22 17:54:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-22 17:54:32,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:32,148 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:32,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 17:54:32,149 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:32,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:32,149 INFO L85 PathProgramCache]: Analyzing trace with hash -853920653, now seen corresponding path program 1 times [2022-07-22 17:54:32,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:32,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854074323] [2022-07-22 17:54:32,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:32,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-22 17:54:32,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:32,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854074323] [2022-07-22 17:54:32,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854074323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:32,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:32,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296712314] [2022-07-22 17:54:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:32,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:32,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:32,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:32,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,171 INFO L87 Difference]: Start difference. First operand 2120 states and 2525 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:32,265 INFO L93 Difference]: Finished difference Result 4549 states and 5458 transitions. [2022-07-22 17:54:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:32,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2022-07-22 17:54:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:32,268 INFO L225 Difference]: With dead ends: 4549 [2022-07-22 17:54:32,268 INFO L226 Difference]: Without dead ends: 2799 [2022-07-22 17:54:32,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,270 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 147 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:32,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 310 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2022-07-22 17:54:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2414. [2022-07-22 17:54:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2411 states have (on average 1.1775197013687266) internal successors, (2839), 2412 states have internal predecessors, (2839), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2841 transitions. [2022-07-22 17:54:32,355 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2841 transitions. Word has length 192 [2022-07-22 17:54:32,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:32,355 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 2841 transitions. [2022-07-22 17:54:32,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2841 transitions. [2022-07-22 17:54:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:54:32,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:32,357 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:32,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-22 17:54:32,358 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:32,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1632035571, now seen corresponding path program 1 times [2022-07-22 17:54:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:32,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291705788] [2022-07-22 17:54:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-22 17:54:32,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:32,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291705788] [2022-07-22 17:54:32,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291705788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:32,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:32,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:32,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272043473] [2022-07-22 17:54:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:32,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:32,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:32,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:32,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,383 INFO L87 Difference]: Start difference. First operand 2414 states and 2841 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:32,465 INFO L93 Difference]: Finished difference Result 4423 states and 5235 transitions. [2022-07-22 17:54:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:32,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-22 17:54:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:32,467 INFO L225 Difference]: With dead ends: 4423 [2022-07-22 17:54:32,467 INFO L226 Difference]: Without dead ends: 2414 [2022-07-22 17:54:32,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,469 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:32,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-07-22 17:54:32,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2414. [2022-07-22 17:54:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2411 states have (on average 1.1766901700539196) internal successors, (2837), 2412 states have internal predecessors, (2837), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 2839 transitions. [2022-07-22 17:54:32,570 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 2839 transitions. Word has length 195 [2022-07-22 17:54:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:32,571 INFO L495 AbstractCegarLoop]: Abstraction has 2414 states and 2839 transitions. [2022-07-22 17:54:32,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 2839 transitions. [2022-07-22 17:54:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:54:32,573 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:32,573 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:32,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 17:54:32,573 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 93695541, now seen corresponding path program 1 times [2022-07-22 17:54:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:32,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095301518] [2022-07-22 17:54:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-07-22 17:54:32,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:32,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095301518] [2022-07-22 17:54:32,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095301518] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:32,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:32,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:32,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564725635] [2022-07-22 17:54:32,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:32,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:32,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,604 INFO L87 Difference]: Start difference. First operand 2414 states and 2839 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:32,678 INFO L93 Difference]: Finished difference Result 3443 states and 4059 transitions. [2022-07-22 17:54:32,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:32,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-22 17:54:32,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:32,681 INFO L225 Difference]: With dead ends: 3443 [2022-07-22 17:54:32,681 INFO L226 Difference]: Without dead ends: 1434 [2022-07-22 17:54:32,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,683 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 3 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:32,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 318 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2022-07-22 17:54:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2022-07-22 17:54:32,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1431 states have (on average 1.1614255765199162) internal successors, (1662), 1432 states have internal predecessors, (1662), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1664 transitions. [2022-07-22 17:54:32,753 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1664 transitions. Word has length 195 [2022-07-22 17:54:32,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:32,753 INFO L495 AbstractCegarLoop]: Abstraction has 1434 states and 1664 transitions. [2022-07-22 17:54:32,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1664 transitions. [2022-07-22 17:54:32,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:54:32,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:32,755 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:32,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 17:54:32,755 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:32,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash -565835981, now seen corresponding path program 1 times [2022-07-22 17:54:32,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:32,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507587807] [2022-07-22 17:54:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:32,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:32,790 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-22 17:54:32,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:32,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507587807] [2022-07-22 17:54:32,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507587807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:54:32,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:54:32,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:54:32,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694729664] [2022-07-22 17:54:32,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:54:32,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:54:32,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:32,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:54:32,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,793 INFO L87 Difference]: Start difference. First operand 1434 states and 1664 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:32,877 INFO L93 Difference]: Finished difference Result 1443 states and 1674 transitions. [2022-07-22 17:54:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:54:32,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-22 17:54:32,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:32,879 INFO L225 Difference]: With dead ends: 1443 [2022-07-22 17:54:32,880 INFO L226 Difference]: Without dead ends: 1440 [2022-07-22 17:54:32,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:54:32,881 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:32,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 311 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:54:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-07-22 17:54:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1436. [2022-07-22 17:54:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1433 states have (on average 1.1612002791346825) internal successors, (1664), 1434 states have internal predecessors, (1664), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1666 transitions. [2022-07-22 17:54:32,958 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1666 transitions. Word has length 195 [2022-07-22 17:54:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:32,959 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1666 transitions. [2022-07-22 17:54:32,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1666 transitions. [2022-07-22 17:54:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 17:54:32,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:32,961 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:32,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-22 17:54:32,961 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:32,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:32,962 INFO L85 PathProgramCache]: Analyzing trace with hash -565783188, now seen corresponding path program 1 times [2022-07-22 17:54:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:32,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964108819] [2022-07-22 17:54:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:32,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:32,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:54:33,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:54:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964108819] [2022-07-22 17:54:33,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964108819] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:54:33,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867203159] [2022-07-22 17:54:33,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:33,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:54:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:54:33,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 17:54:33,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 17:54:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:54:33,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 20 conjunts are in the unsatisfiable core [2022-07-22 17:54:33,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:54:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:54:33,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 17:54:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-22 17:54:33,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867203159] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 17:54:33,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 17:54:33,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 27 [2022-07-22 17:54:33,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029875295] [2022-07-22 17:54:33,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 17:54:33,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 17:54:33,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:54:33,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 17:54:33,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-07-22 17:54:33,885 INFO L87 Difference]: Start difference. First operand 1436 states and 1666 transitions. Second operand has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:54:35,794 INFO L93 Difference]: Finished difference Result 5249 states and 6026 transitions. [2022-07-22 17:54:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-07-22 17:54:35,795 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-22 17:54:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:54:35,802 INFO L225 Difference]: With dead ends: 5249 [2022-07-22 17:54:35,802 INFO L226 Difference]: Without dead ends: 4170 [2022-07-22 17:54:35,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1491 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=742, Invalid=5738, Unknown=0, NotChecked=0, Total=6480 [2022-07-22 17:54:35,809 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 3430 mSDsluCounter, 10277 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3430 SdHoareTripleChecker+Valid, 10880 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 17:54:35,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3430 Valid, 10880 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 17:54:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2022-07-22 17:54:35,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 1882. [2022-07-22 17:54:35,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1879 states have (on average 1.1559340074507718) internal successors, (2172), 1880 states have internal predecessors, (2172), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:35,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2174 transitions. [2022-07-22 17:54:35,931 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2174 transitions. Word has length 195 [2022-07-22 17:54:35,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:54:35,931 INFO L495 AbstractCegarLoop]: Abstraction has 1882 states and 2174 transitions. [2022-07-22 17:54:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:54:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2174 transitions. [2022-07-22 17:54:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-22 17:54:35,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:54:35,934 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:35,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 17:54:36,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-07-22 17:54:36,155 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:54:36,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:54:36,156 INFO L85 PathProgramCache]: Analyzing trace with hash -359844139, now seen corresponding path program 1 times [2022-07-22 17:54:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:54:36,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15245880] [2022-07-22 17:54:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:54:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:54:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:54:36,187 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 17:54:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 17:54:36,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 17:54:36,240 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 17:54:36,241 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:54:36,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-22 17:54:36,246 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:54:36,249 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:54:36,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:54:36 BoogieIcfgContainer [2022-07-22 17:54:36,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:54:36,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:54:36,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:54:36,363 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:54:36,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:54:24" (3/4) ... [2022-07-22 17:54:36,364 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 17:54:36,441 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:54:36,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:54:36,442 INFO L158 Benchmark]: Toolchain (without parser) took 13022.22ms. Allocated memory was 100.7MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 74.5MB in the beginning and 891.8MB in the end (delta: -817.3MB). Peak memory consumption was 876.7MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,442 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:54:36,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.33ms. Allocated memory is still 100.7MB. Free memory was 74.3MB in the beginning and 72.6MB in the end (delta: 1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.71ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,442 INFO L158 Benchmark]: Boogie Preprocessor took 32.11ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 68.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,442 INFO L158 Benchmark]: RCFGBuilder took 478.68ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 48.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,443 INFO L158 Benchmark]: TraceAbstraction took 12127.35ms. Allocated memory was 100.7MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 48.0MB in the beginning and 914.8MB in the end (delta: -866.9MB). Peak memory consumption was 828.2MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,443 INFO L158 Benchmark]: Witness Printer took 78.92ms. Allocated memory is still 1.8GB. Free memory was 914.8MB in the beginning and 891.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-22 17:54:36,444 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.33ms. Allocated memory is still 100.7MB. Free memory was 74.3MB in the beginning and 72.6MB in the end (delta: 1.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.71ms. Allocated memory is still 100.7MB. Free memory was 72.4MB in the beginning and 70.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.11ms. Allocated memory is still 100.7MB. Free memory was 70.2MB in the beginning and 68.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 478.68ms. Allocated memory is still 100.7MB. Free memory was 68.2MB in the beginning and 48.5MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12127.35ms. Allocated memory was 100.7MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 48.0MB in the beginning and 914.8MB in the end (delta: -866.9MB). Peak memory consumption was 828.2MB. Max. memory is 16.1GB. * Witness Printer took 78.92ms. Allocated memory is still 1.8GB. Free memory was 914.8MB in the beginning and 891.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int c ; [L29] int c_t ; [L30] int c_req_up ; [L31] int p_in ; [L32] int p_out ; [L33] int wl_st ; [L34] int c1_st ; [L35] int c2_st ; [L36] int wb_st ; [L37] int r_st ; [L38] int wl_i ; [L39] int c1_i ; [L40] int c2_i ; [L41] int wb_i ; [L42] int r_i ; [L43] int wl_pc ; [L44] int c1_pc ; [L45] int c2_pc ; [L46] int wb_pc ; [L47] int e_e ; [L48] int e_f ; [L49] int e_g ; [L50] int e_c ; [L51] int e_p_in ; [L52] int e_wl ; [L58] int d ; [L59] int data ; [L60] int processed ; [L61] static int t_b ; VAL [c=0, c1_i=0, c1_pc=0, c1_st=0, c2_i=0, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=0, e_e=0, e_f=0, e_g=0, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=0, wb_pc=0, wb_st=0, wl_i=0, wl_pc=0, wl_st=0] [L701] int __retres1 ; [L705] e_wl = 2 [L706] e_c = e_wl [L707] e_g = e_c [L708] e_f = e_g [L709] e_e = e_f [L710] wl_pc = 0 [L711] c1_pc = 0 [L712] c2_pc = 0 [L713] wb_pc = 0 [L714] wb_i = 1 [L715] c2_i = wb_i [L716] c1_i = c2_i [L717] wl_i = c1_i [L718] r_i = 0 [L719] c_req_up = 0 [L720] d = 0 [L721] c = 0 [L722] CALL start_simulation() [L412] int kernel_st ; [L415] kernel_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L416] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L427] COND TRUE (int )wl_i == 1 [L428] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L432] COND TRUE (int )c1_i == 1 [L433] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L437] COND TRUE (int )c2_i == 1 [L438] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L442] COND TRUE (int )wb_i == 1 [L443] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L447] COND FALSE !((int )r_i == 1) [L450] r_st = 2 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L452] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L457] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L462] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L467] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L472] COND FALSE !((int )e_wl == 0) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L477] COND FALSE !((int )wl_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L485] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L495] COND FALSE !((int )c1_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L504] COND FALSE !((int )c2_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L513] COND FALSE !((int )wb_pc == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L522] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L527] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L532] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L537] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L542] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L547] COND FALSE !((int )e_wl == 1) VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L553] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L556] kernel_st = 1 [L557] CALL eval() [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L302] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L306] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L308] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=0] [L329] COND TRUE (int )wl_st == 0 [L331] tmp = __VERIFIER_nondet_int() [L333] COND TRUE \read(tmp) [L335] wl_st = 1 [L336] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L66] COND TRUE (int )wl_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=0, wl_st=1] [L80] wl_st = 2 [L81] wl_pc = 1 [L82] e_wl = 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=0, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L336] RET write_loop() [L344] COND TRUE (int )c1_st == 0 [L346] tmp___0 = __VERIFIER_nondet_int() [L348] COND TRUE \read(tmp___0) [L350] c1_st = 1 [L351] CALL compute1() [L149] COND TRUE (int )c1_pc == 0 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L160] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=0, c1_st=1, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L162] c1_st = 2 [L163] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L351] RET compute1() [L359] COND TRUE (int )c2_st == 0 [L361] tmp___1 = __VERIFIER_nondet_int() [L363] COND TRUE \read(tmp___1) [L365] c2_st = 1 [L366] CALL compute2() [L194] COND TRUE (int )c2_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L205] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=0, c2_st=1, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L207] c2_st = 2 [L208] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=0, wl_i=1, wl_pc=1, wl_st=2] [L366] RET compute2() [L374] COND TRUE (int )wb_st == 0 [L376] tmp___2 = __VERIFIER_nondet_int() [L378] COND TRUE \read(tmp___2) [L380] wb_st = 1 [L381] CALL write_back() [L239] COND TRUE (int )wb_pc == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L250] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=0, wb_st=1, wl_i=1, wl_pc=1, wl_st=2] [L252] wb_st = 2 [L253] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L381] RET write_back() [L389] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L306] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L308] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L311] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L314] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L317] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L320] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=-1, tmp___1=-2, tmp___2=-3, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L557] RET eval() [L559] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L560] COND FALSE !((int )c_req_up == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L571] kernel_st = 3 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L572] COND FALSE !((int )e_f == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L577] COND FALSE !((int )e_g == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L582] COND FALSE !((int )e_e == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L587] COND FALSE !((int )e_c == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=0, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L592] COND TRUE (int )e_wl == 0 [L593] e_wl = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L597] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=2] [L598] COND TRUE (int )e_wl == 1 [L599] wl_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L615] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L616] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L624] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L625] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L633] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L634] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L642] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L647] COND FALSE !((int )e_e == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L652] COND FALSE !((int )e_f == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L657] COND FALSE !((int )e_g == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L662] COND FALSE !((int )e_c == 1) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=1, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L667] COND TRUE (int )e_wl == 1 [L668] e_wl = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L672] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L553] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L556] kernel_st = 1 [L557] CALL eval() [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L302] int tmp___3 ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L306] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L308] COND TRUE (int )wl_st == 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=0] [L329] COND TRUE (int )wl_st == 0 [L331] tmp = __VERIFIER_nondet_int() [L333] COND TRUE \read(tmp) [L335] wl_st = 1 [L336] CALL write_loop() [L63] int t ; VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L69] COND FALSE !((int )wl_pc == 2) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L72] COND TRUE (int )wl_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L87] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L89] t = d [L90] data = d [L91] processed = 0 [L92] e_f = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L93] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L94] COND TRUE (int )e_f == 1 [L95] c1_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L102] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L103] COND TRUE (int )e_f == 1 [L104] c2_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=1, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=1, wl_st=1] [L111] e_f = 2 [L112] wl_st = 2 [L113] wl_pc = 2 [L114] t_b = t VAL [c=0, c1_i=1, c1_pc=1, c1_st=0, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L336] RET write_loop() [L344] COND TRUE (int )c1_st == 0 [L346] tmp___0 = __VERIFIER_nondet_int() [L348] COND TRUE \read(tmp___0) [L350] c1_st = 1 [L351] CALL compute1() [L149] COND FALSE !((int )c1_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L152] COND TRUE (int )c1_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=0, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L167] COND TRUE ! processed [L168] data += 1 [L169] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L170] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L171] COND TRUE (int )e_g == 1 [L172] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L179] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L160] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=1, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L162] c1_st = 2 [L163] c1_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=0, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L351] RET compute1() [L359] COND TRUE (int )c2_st == 0 [L361] tmp___1 = __VERIFIER_nondet_int() [L363] COND TRUE \read(tmp___1) [L365] c2_st = 1 [L366] CALL compute2() [L194] COND FALSE !((int )c2_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L197] COND TRUE (int )c2_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=1, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L212] COND TRUE ! processed [L213] data += 1 [L214] e_g = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L215] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L216] COND TRUE (int )e_g == 1 [L217] wb_st = 0 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=1, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L224] e_g = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L205] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=1, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L207] c2_st = 2 [L208] c2_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=0, wl_i=1, wl_pc=2, wl_st=2] [L366] RET compute2() [L374] COND TRUE (int )wb_st == 0 [L376] tmp___2 = __VERIFIER_nondet_int() [L378] COND TRUE \read(tmp___2) [L380] wb_st = 1 [L381] CALL write_back() [L239] COND FALSE !((int )wb_pc == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L242] COND TRUE (int )wb_pc == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=0, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=0, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L257] c_t = data [L258] c_req_up = 1 [L259] processed = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L250] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=1, wl_i=1, wl_pc=2, wl_st=2] [L252] wb_st = 2 [L253] wb_pc = 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L381] RET write_back() [L389] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L306] COND TRUE 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND FALSE !((int )wl_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L311] COND FALSE !((int )c1_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L314] COND FALSE !((int )c2_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L317] COND FALSE !((int )wb_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L320] COND FALSE !((int )r_st == 0) VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp=1, tmp___0=4, tmp___1=-4, tmp___2=5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L557] RET eval() [L559] kernel_st = 2 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L560] COND TRUE (int )c_req_up == 1 VAL [c=0, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L561] COND TRUE c != c_t [L562] c = c_t [L563] e_c = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=1, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L567] c_req_up = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L571] kernel_st = 3 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L572] COND FALSE !((int )e_f == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L577] COND FALSE !((int )e_g == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L582] COND FALSE !((int )e_e == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=0, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L587] COND TRUE (int )e_c == 0 [L588] e_c = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L592] COND FALSE !((int )e_wl == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L597] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L605] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L606] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L615] COND TRUE (int )c1_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L616] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L624] COND TRUE (int )c2_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L625] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L633] COND TRUE (int )wb_pc == 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L634] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L642] COND TRUE (int )e_c == 1 [L643] r_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L647] COND FALSE !((int )e_e == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L652] COND FALSE !((int )e_f == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L657] COND FALSE !((int )e_g == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=1, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L662] COND TRUE (int )e_c == 1 [L663] e_c = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L667] COND FALSE !((int )e_wl == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L672] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L675] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L678] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L681] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L684] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L553] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, kernel_st=3, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L556] kernel_st = 1 [L557] CALL eval() [L298] int tmp ; [L299] int tmp___0 ; [L300] int tmp___1 ; [L301] int tmp___2 ; [L302] int tmp___3 ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L306] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L308] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L311] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L314] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L317] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L320] COND TRUE (int )r_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L329] COND FALSE !((int )wl_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L344] COND FALSE !((int )c1_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L359] COND FALSE !((int )c2_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L374] COND FALSE !((int )wb_st == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=0, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L389] COND TRUE (int )r_st == 0 [L391] tmp___3 = __VERIFIER_nondet_int() [L393] COND TRUE \read(tmp___3) [L395] r_st = 1 [L396] CALL read() [L271] d = c [L272] e_e = 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L273] COND FALSE !((int )wl_pc == 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L281] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=2] [L282] COND TRUE (int )e_e == 1 [L283] wl_st = 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=1, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=1, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L291] e_e = 2 [L292] r_st = 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L396] RET read() [L306] COND TRUE 1 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L308] COND TRUE (int )wl_st == 0 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, tmp___3=-5, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=0] [L329] COND TRUE (int )wl_st == 0 [L331] tmp = __VERIFIER_nondet_int() [L333] COND TRUE \read(tmp) [L335] wl_st = 1 [L336] CALL write_loop() [L63] int t ; VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L66] COND FALSE !((int )wl_pc == 0) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L69] COND TRUE (int )wl_pc == 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L118] t = t_b VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L119] COND FALSE !(d == t + 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L122] COND TRUE d == t + 2 VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L130] COND FALSE !(d == t + 1) VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t=0, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L134] CALL error() VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] [L23] reach_error() VAL [c=2, c1_i=1, c1_pc=1, c1_st=2, c2_i=1, c2_pc=1, c2_st=2, c_req_up=0, c_t=2, d=2, data=2, e_c=2, e_e=2, e_f=2, e_g=2, e_p_in=0, e_wl=2, p_in=0, p_out=0, processed=1, r_i=0, r_st=2, t_b=0, wb_i=1, wb_pc=1, wb_st=2, wl_i=1, wl_pc=2, wl_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 36, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11352 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11352 mSDsluCounter, 22546 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14747 mSDsCounter, 402 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1925 IncrementalHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 402 mSolverCounterUnsat, 7799 mSDtfsCounter, 1925 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 632 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5776occurred in iteration=21, InterpolantAutomatonStates: 188, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 35 MinimizatonAttempts, 6848 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 3550 NumberOfCodeBlocks, 3550 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3512 ConstructedInterpolants, 0 QuantifiedInterpolants, 7566 SizeOfPredicates, 6 NumberOfNonLiveVariables, 534 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 37 InterpolantComputations, 34 PerfectInterpolantSequences, 1153/1283 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-22 17:54:36,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE