./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label15.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 303e81240b0a1989638e497fa3fbaa4e2ebd948d9aafa1986663f2c99e7f43f3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 11:09:49,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 11:09:49,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 11:09:49,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 11:09:49,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 11:09:49,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 11:09:49,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 11:09:49,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 11:09:49,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 11:09:49,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 11:09:49,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 11:09:49,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 11:09:49,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 11:09:49,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 11:09:49,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 11:09:49,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 11:09:49,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 11:09:49,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 11:09:49,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 11:09:49,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 11:09:49,737 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 11:09:49,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 11:09:49,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 11:09:49,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 11:09:49,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 11:09:49,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 11:09:49,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 11:09:49,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 11:09:49,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 11:09:49,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 11:09:49,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 11:09:49,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 11:09:49,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 11:09:49,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 11:09:49,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 11:09:49,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 11:09:49,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 11:09:49,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 11:09:49,753 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 11:09:49,753 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 11:09:49,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 11:09:49,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 11:09:49,756 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 11:09:49,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 11:09:49,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 11:09:49,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 11:09:49,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 11:09:49,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 11:09:49,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 11:09:49,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 11:09:49,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 11:09:49,785 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 11:09:49,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 11:09:49,786 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 11:09:49,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 11:09:49,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 11:09:49,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 11:09:49,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 11:09:49,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 11:09:49,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 11:09:49,787 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 11:09:49,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 11:09:49,787 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 11:09:49,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 11:09:49,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 11:09:49,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 11:09:49,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 11:09:49,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 11:09:49,790 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 11:09:49,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 11:09:49,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 11:09:49,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 303e81240b0a1989638e497fa3fbaa4e2ebd948d9aafa1986663f2c99e7f43f3 [2022-07-19 11:09:49,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 11:09:49,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 11:09:49,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 11:09:49,990 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 11:09:49,991 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 11:09:49,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label15.c [2022-07-19 11:09:50,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ff8cfd5/0adfdffe68354e2cb60dbdc290c223c8/FLAG5ea6bb11a [2022-07-19 11:09:50,429 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 11:09:50,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label15.c [2022-07-19 11:09:50,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ff8cfd5/0adfdffe68354e2cb60dbdc290c223c8/FLAG5ea6bb11a [2022-07-19 11:09:50,785 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ff8cfd5/0adfdffe68354e2cb60dbdc290c223c8 [2022-07-19 11:09:50,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 11:09:50,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 11:09:50,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 11:09:50,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 11:09:50,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 11:09:50,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:09:50" (1/1) ... [2022-07-19 11:09:50,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c8587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:50, skipping insertion in model container [2022-07-19 11:09:50,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:09:50" (1/1) ... [2022-07-19 11:09:50,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 11:09:50,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 11:09:51,053 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label15.c[20193,20206] [2022-07-19 11:09:51,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 11:09:51,073 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 11:09:51,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label15.c[20193,20206] [2022-07-19 11:09:51,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 11:09:51,133 INFO L208 MainTranslator]: Completed translation [2022-07-19 11:09:51,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51 WrapperNode [2022-07-19 11:09:51,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 11:09:51,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 11:09:51,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 11:09:51,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 11:09:51,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,192 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-07-19 11:09:51,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 11:09:51,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 11:09:51,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 11:09:51,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 11:09:51,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 11:09:51,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 11:09:51,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 11:09:51,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 11:09:51,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (1/1) ... [2022-07-19 11:09:51,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 11:09:51,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 11:09:51,260 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) [2022-07-19 11:09:51,275 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 [2022-07-19 11:09:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 11:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 11:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 11:09:51,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 11:09:51,328 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 11:09:51,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 11:09:51,898 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 11:09:51,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 11:09:51,921 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 11:09:51,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:09:51 BoogieIcfgContainer [2022-07-19 11:09:51,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 11:09:51,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 11:09:51,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 11:09:51,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 11:09:51,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:09:50" (1/3) ... [2022-07-19 11:09:51,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4add10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:09:51, skipping insertion in model container [2022-07-19 11:09:51,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:51" (2/3) ... [2022-07-19 11:09:51,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c4add10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:09:51, skipping insertion in model container [2022-07-19 11:09:51,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:09:51" (3/3) ... [2022-07-19 11:09:51,929 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label15.c [2022-07-19 11:09:51,938 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 11:09:51,939 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 11:09:51,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 11:09:51,975 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@448bc795, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3088fd2f [2022-07-19 11:09:51,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 11:09:51,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-19 11:09:51,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:51,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:51,987 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash -648019827, now seen corresponding path program 1 times [2022-07-19 11:09:51,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:51,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301388487] [2022-07-19 11:09:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:51,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 11:09:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:52,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301388487] [2022-07-19 11:09:52,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301388487] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:52,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:52,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 11:09:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860326706] [2022-07-19 11:09:52,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:52,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:52,425 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:52,928 INFO L93 Difference]: Finished difference Result 596 states and 1030 transitions. [2022-07-19 11:09:52,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:52,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2022-07-19 11:09:52,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:52,941 INFO L225 Difference]: With dead ends: 596 [2022-07-19 11:09:52,941 INFO L226 Difference]: Without dead ends: 305 [2022-07-19 11:09:52,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:52,947 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 114 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:52,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 89 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 11:09:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-07-19 11:09:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2022-07-19 11:09:52,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 304 states have (on average 1.5263157894736843) internal successors, (464), 304 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 464 transitions. [2022-07-19 11:09:52,994 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 464 transitions. Word has length 130 [2022-07-19 11:09:52,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:52,995 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 464 transitions. [2022-07-19 11:09:52,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 464 transitions. [2022-07-19 11:09:52,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-19 11:09:52,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:52,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 11:09:52,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1230056247, now seen corresponding path program 1 times [2022-07-19 11:09:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:53,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115265925] [2022-07-19 11:09:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:53,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 11:09:53,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:53,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115265925] [2022-07-19 11:09:53,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115265925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:53,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:53,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 11:09:53,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727230985] [2022-07-19 11:09:53,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:53,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:53,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:53,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:53,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:53,078 INFO L87 Difference]: Start difference. First operand 305 states and 464 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:53,466 INFO L93 Difference]: Finished difference Result 900 states and 1374 transitions. [2022-07-19 11:09:53,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:53,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-07-19 11:09:53,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:53,469 INFO L225 Difference]: With dead ends: 900 [2022-07-19 11:09:53,470 INFO L226 Difference]: Without dead ends: 597 [2022-07-19 11:09:53,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:53,472 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 191 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:53,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 72 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 11:09:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-07-19 11:09:53,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 456. [2022-07-19 11:09:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.4901098901098901) internal successors, (678), 455 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 678 transitions. [2022-07-19 11:09:53,492 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 678 transitions. Word has length 141 [2022-07-19 11:09:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:53,493 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 678 transitions. [2022-07-19 11:09:53,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 678 transitions. [2022-07-19 11:09:53,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-19 11:09:53,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:53,496 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:53,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 11:09:53,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:53,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:53,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1044311630, now seen corresponding path program 1 times [2022-07-19 11:09:53,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:53,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232848774] [2022-07-19 11:09:53,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 11:09:53,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:53,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232848774] [2022-07-19 11:09:53,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232848774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:53,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:53,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 11:09:53,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516042589] [2022-07-19 11:09:53,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:53,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:53,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:53,554 INFO L87 Difference]: Start difference. First operand 456 states and 678 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:53,882 INFO L93 Difference]: Finished difference Result 1350 states and 2015 transitions. [2022-07-19 11:09:53,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:53,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2022-07-19 11:09:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:53,889 INFO L225 Difference]: With dead ends: 1350 [2022-07-19 11:09:53,889 INFO L226 Difference]: Without dead ends: 896 [2022-07-19 11:09:53,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:53,891 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 156 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:53,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 124 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-07-19 11:09:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 749. [2022-07-19 11:09:53,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 1.4398395721925135) internal successors, (1077), 748 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1077 transitions. [2022-07-19 11:09:53,908 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1077 transitions. Word has length 148 [2022-07-19 11:09:53,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:53,909 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1077 transitions. [2022-07-19 11:09:53,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1077 transitions. [2022-07-19 11:09:53,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-19 11:09:53,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:53,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 11:09:53,913 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash -272002172, now seen corresponding path program 1 times [2022-07-19 11:09:53,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:53,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952749939] [2022-07-19 11:09:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:53,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 11:09:53,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:53,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952749939] [2022-07-19 11:09:53,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952749939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:53,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:53,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 11:09:53,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659734071] [2022-07-19 11:09:53,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:53,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:53,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:53,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:53,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:53,961 INFO L87 Difference]: Start difference. First operand 749 states and 1077 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:54,307 INFO L93 Difference]: Finished difference Result 2199 states and 3171 transitions. [2022-07-19 11:09:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:54,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2022-07-19 11:09:54,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:54,313 INFO L225 Difference]: With dead ends: 2199 [2022-07-19 11:09:54,313 INFO L226 Difference]: Without dead ends: 1452 [2022-07-19 11:09:54,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:54,326 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 176 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:54,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 77 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2022-07-19 11:09:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1312. [2022-07-19 11:09:54,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1311 states have (on average 1.3646071700991609) internal successors, (1789), 1311 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1789 transitions. [2022-07-19 11:09:54,357 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1789 transitions. Word has length 152 [2022-07-19 11:09:54,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:54,357 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1789 transitions. [2022-07-19 11:09:54,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1789 transitions. [2022-07-19 11:09:54,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-19 11:09:54,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:54,361 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:54,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 11:09:54,362 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:54,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2008802458, now seen corresponding path program 1 times [2022-07-19 11:09:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:54,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743336031] [2022-07-19 11:09:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:54,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-19 11:09:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:54,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743336031] [2022-07-19 11:09:54,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743336031] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:54,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:54,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 11:09:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615821744] [2022-07-19 11:09:54,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:54,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:54,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:54,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:54,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:54,474 INFO L87 Difference]: Start difference. First operand 1312 states and 1789 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:54,808 INFO L93 Difference]: Finished difference Result 3045 states and 4121 transitions. [2022-07-19 11:09:54,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:54,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-07-19 11:09:54,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:54,815 INFO L225 Difference]: With dead ends: 3045 [2022-07-19 11:09:54,815 INFO L226 Difference]: Without dead ends: 1735 [2022-07-19 11:09:54,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:54,823 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 143 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:54,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 126 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2022-07-19 11:09:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1733. [2022-07-19 11:09:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1732 states have (on average 1.2904157043879907) internal successors, (2235), 1732 states have internal predecessors, (2235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2235 transitions. [2022-07-19 11:09:54,873 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2235 transitions. Word has length 178 [2022-07-19 11:09:54,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:54,873 INFO L495 AbstractCegarLoop]: Abstraction has 1733 states and 2235 transitions. [2022-07-19 11:09:54,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:54,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2235 transitions. [2022-07-19 11:09:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-07-19 11:09:54,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:54,891 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:54,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 11:09:54,891 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:54,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:54,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1388183119, now seen corresponding path program 1 times [2022-07-19 11:09:54,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:54,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336049132] [2022-07-19 11:09:54,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:54,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-07-19 11:09:54,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:54,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336049132] [2022-07-19 11:09:54,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336049132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:54,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:54,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 11:09:54,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464272972] [2022-07-19 11:09:54,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:54,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:54,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:54,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:54,957 INFO L87 Difference]: Start difference. First operand 1733 states and 2235 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:55,325 INFO L93 Difference]: Finished difference Result 4307 states and 5566 transitions. [2022-07-19 11:09:55,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:55,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-07-19 11:09:55,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:55,333 INFO L225 Difference]: With dead ends: 4307 [2022-07-19 11:09:55,334 INFO L226 Difference]: Without dead ends: 2576 [2022-07-19 11:09:55,336 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 [2022-07-19 11:09:55,338 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 144 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 251 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:55,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2022-07-19 11:09:55,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2573. [2022-07-19 11:09:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2572 states have (on average 1.2227838258164851) internal successors, (3145), 2572 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 3145 transitions. [2022-07-19 11:09:55,386 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 3145 transitions. Word has length 183 [2022-07-19 11:09:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:55,387 INFO L495 AbstractCegarLoop]: Abstraction has 2573 states and 3145 transitions. [2022-07-19 11:09:55,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 3145 transitions. [2022-07-19 11:09:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-07-19 11:09:55,393 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:55,393 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:55,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 11:09:55,393 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:55,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:55,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1429783209, now seen corresponding path program 1 times [2022-07-19 11:09:55,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:55,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181497334] [2022-07-19 11:09:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:55,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:55,467 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 11:09:55,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:55,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181497334] [2022-07-19 11:09:55,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181497334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:55,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:55,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 11:09:55,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064354301] [2022-07-19 11:09:55,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:55,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:55,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:55,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:55,470 INFO L87 Difference]: Start difference. First operand 2573 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:55,801 INFO L93 Difference]: Finished difference Result 5986 states and 7255 transitions. [2022-07-19 11:09:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:55,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2022-07-19 11:09:55,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:55,813 INFO L225 Difference]: With dead ends: 5986 [2022-07-19 11:09:55,813 INFO L226 Difference]: Without dead ends: 3415 [2022-07-19 11:09:55,816 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 [2022-07-19 11:09:55,818 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 155 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:55,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 66 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2022-07-19 11:09:55,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 3133. [2022-07-19 11:09:55,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 3132 states have (on average 1.1893358876117497) internal successors, (3725), 3132 states have internal predecessors, (3725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 3725 transitions. [2022-07-19 11:09:55,912 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 3725 transitions. Word has length 185 [2022-07-19 11:09:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:55,914 INFO L495 AbstractCegarLoop]: Abstraction has 3133 states and 3725 transitions. [2022-07-19 11:09:55,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 3725 transitions. [2022-07-19 11:09:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-19 11:09:55,921 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:55,921 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:55,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 11:09:55,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:55,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:55,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1453262797, now seen corresponding path program 1 times [2022-07-19 11:09:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:55,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129493753] [2022-07-19 11:09:55,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:55,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-07-19 11:09:55,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:55,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129493753] [2022-07-19 11:09:55,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129493753] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:55,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:55,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 11:09:55,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823909605] [2022-07-19 11:09:55,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:55,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:55,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:55,987 INFO L87 Difference]: Start difference. First operand 3133 states and 3725 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:56,302 INFO L93 Difference]: Finished difference Result 5983 states and 7149 transitions. [2022-07-19 11:09:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2022-07-19 11:09:56,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:56,312 INFO L225 Difference]: With dead ends: 5983 [2022-07-19 11:09:56,313 INFO L226 Difference]: Without dead ends: 2852 [2022-07-19 11:09:56,316 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 [2022-07-19 11:09:56,317 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:56,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 253 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:56,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-07-19 11:09:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2844. [2022-07-19 11:09:56,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2843 states have (on average 1.1575800211044671) internal successors, (3291), 2843 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3291 transitions. [2022-07-19 11:09:56,372 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3291 transitions. Word has length 189 [2022-07-19 11:09:56,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:56,374 INFO L495 AbstractCegarLoop]: Abstraction has 2844 states and 3291 transitions. [2022-07-19 11:09:56,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3291 transitions. [2022-07-19 11:09:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-19 11:09:56,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:56,381 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-07-19 11:09:56,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 11:09:56,383 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:56,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:56,383 INFO L85 PathProgramCache]: Analyzing trace with hash 143795957, now seen corresponding path program 1 times [2022-07-19 11:09:56,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:56,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915133805] [2022-07-19 11:09:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:56,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 11:09:56,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:56,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915133805] [2022-07-19 11:09:56,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915133805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:56,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:56,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 11:09:56,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061797664] [2022-07-19 11:09:56,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:56,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:56,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:56,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:56,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:56,451 INFO L87 Difference]: Start difference. First operand 2844 states and 3291 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:56,755 INFO L93 Difference]: Finished difference Result 5688 states and 6582 transitions. [2022-07-19 11:09:56,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:56,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-07-19 11:09:56,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:56,789 INFO L225 Difference]: With dead ends: 5688 [2022-07-19 11:09:56,790 INFO L226 Difference]: Without dead ends: 2846 [2022-07-19 11:09:56,793 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 [2022-07-19 11:09:56,793 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 116 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:56,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 259 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2022-07-19 11:09:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2844. [2022-07-19 11:09:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2843 states have (on average 1.1382342595849455) internal successors, (3236), 2843 states have internal predecessors, (3236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3236 transitions. [2022-07-19 11:09:56,839 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3236 transitions. Word has length 207 [2022-07-19 11:09:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:56,839 INFO L495 AbstractCegarLoop]: Abstraction has 2844 states and 3236 transitions. [2022-07-19 11:09:56,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3236 transitions. [2022-07-19 11:09:56,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-19 11:09:56,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:56,846 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:56,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 11:09:56,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:56,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash 900785943, now seen corresponding path program 1 times [2022-07-19 11:09:56,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:56,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402715296] [2022-07-19 11:09:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:56,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-19 11:09:56,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:56,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402715296] [2022-07-19 11:09:56,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402715296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:56,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 11:09:56,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 11:09:56,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110236234] [2022-07-19 11:09:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:56,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:56,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:56,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:56,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 11:09:56,902 INFO L87 Difference]: Start difference. First operand 2844 states and 3236 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:57,228 INFO L93 Difference]: Finished difference Result 6810 states and 7865 transitions. [2022-07-19 11:09:57,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2022-07-19 11:09:57,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:57,241 INFO L225 Difference]: With dead ends: 6810 [2022-07-19 11:09:57,241 INFO L226 Difference]: Without dead ends: 3968 [2022-07-19 11:09:57,245 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 [2022-07-19 11:09:57,246 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 141 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:57,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 214 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 11:09:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2022-07-19 11:09:57,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3966. [2022-07-19 11:09:57,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3965 states have (on average 1.1407313997477933) internal successors, (4523), 3965 states have internal predecessors, (4523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 4523 transitions. [2022-07-19 11:09:57,312 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 4523 transitions. Word has length 228 [2022-07-19 11:09:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:57,312 INFO L495 AbstractCegarLoop]: Abstraction has 3966 states and 4523 transitions. [2022-07-19 11:09:57,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 4523 transitions. [2022-07-19 11:09:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-19 11:09:57,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 11:09:57,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-19 11:09:57,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 11:09:57,321 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 11:09:57,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 11:09:57,321 INFO L85 PathProgramCache]: Analyzing trace with hash 283278328, now seen corresponding path program 1 times [2022-07-19 11:09:57,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 11:09:57,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577606410] [2022-07-19 11:09:57,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:57,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 11:09:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 11:09:57,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 11:09:57,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577606410] [2022-07-19 11:09:57,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577606410] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 11:09:57,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831549292] [2022-07-19 11:09:57,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 11:09:57,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 11:09:57,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 11:09:57,493 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) [2022-07-19 11:09:57,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 11:09:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 11:09:57,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 11:09:57,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 11:09:57,746 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 11:09:57,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 11:09:57,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831549292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 11:09:57,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 11:09:57,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-19 11:09:57,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177221801] [2022-07-19 11:09:57,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 11:09:57,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 11:09:57,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 11:09:57,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 11:09:57,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 11:09:57,749 INFO L87 Difference]: Start difference. First operand 3966 states and 4523 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:58,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 11:09:58,159 INFO L93 Difference]: Finished difference Result 8346 states and 9516 transitions. [2022-07-19 11:09:58,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 11:09:58,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2022-07-19 11:09:58,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 11:09:58,160 INFO L225 Difference]: With dead ends: 8346 [2022-07-19 11:09:58,160 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 11:09:58,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-19 11:09:58,168 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 41 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 11:09:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 71 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 11:09:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 11:09:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 11:09:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 11:09:58,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 228 [2022-07-19 11:09:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 11:09:58,170 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 11:09:58,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 11:09:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 11:09:58,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 11:09:58,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 11:09:58,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 11:09:58,392 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,SelfDestructingSolverStorable10 [2022-07-19 11:09:58,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 11:09:58,782 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,782 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,783 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2022-07-19 11:09:58,784 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2022-07-19 11:09:58,785 INFO L899 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-07-19 11:09:58,786 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2022-07-19 11:09:58,787 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2022-07-19 11:09:58,788 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2022-07-19 11:09:58,789 INFO L899 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,790 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-07-19 11:09:58,791 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,792 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,792 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,792 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-07-19 11:09:58,792 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-07-19 11:09:58,792 INFO L899 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,793 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-07-19 11:09:58,794 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2022-07-19 11:09:58,795 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,796 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-07-19 11:09:58,797 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 11:09:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 572) no Hoare annotation was computed. [2022-07-19 11:09:58,798 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,798 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2022-07-19 11:09:58,799 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-07-19 11:09:58,800 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2022-07-19 11:09:58,801 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-07-19 11:09:58,801 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-07-19 11:09:58,801 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-07-19 11:09:58,801 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,801 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2022-07-19 11:09:58,802 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2022-07-19 11:09:58,803 INFO L899 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2022-07-19 11:09:58,804 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-07-19 11:09:58,804 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-07-19 11:09:58,804 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2022-07-19 11:09:58,804 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2022-07-19 11:09:58,804 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-07-19 11:09:58,805 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (= ~a11~0 0)) (.cse2 (= ~a25~0 1)) (.cse0 (= ~a19~0 1)) (.cse4 (<= ~a28~0 10)) (.cse1 (= ~a25~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and (<= 10 ~a28~0) .cse4 .cse0) (and (<= 9 ~a28~0) .cse2 (<= ~a28~0 9)) (and .cse3 .cse1) (and .cse2 (<= 8 ~a17~0) .cse4) (and .cse2 .cse0) (and .cse4 .cse1))) [2022-07-19 11:09:58,805 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,805 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2022-07-19 11:09:58,806 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-07-19 11:09:58,806 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2022-07-19 11:09:58,807 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2022-07-19 11:09:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 11:09:58,810 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-07-19 11:09:58,810 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-07-19 11:09:58,810 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a11~0 0)) (.cse2 (= ~a25~0 1)) (.cse0 (= ~a19~0 1)) (.cse4 (<= ~a28~0 10)) (.cse1 (= ~a25~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4) (and (<= 10 ~a28~0) .cse4 .cse0) (and (<= 9 ~a28~0) .cse2 (<= ~a28~0 9)) (and .cse3 .cse1) (and .cse2 (<= 8 ~a17~0) .cse4) (and .cse2 .cse0) (and .cse4 .cse1))) [2022-07-19 11:09:58,810 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,811 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2022-07-19 11:09:58,812 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2022-07-19 11:09:58,813 INFO L899 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2022-07-19 11:09:58,814 INFO L899 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2022-07-19 11:09:58,815 INFO L899 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2022-07-19 11:09:58,816 INFO L899 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2022-07-19 11:09:58,816 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-07-19 11:09:58,816 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-07-19 11:09:58,823 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 11:09:58,825 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 11:09:58,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:09:58 BoogieIcfgContainer [2022-07-19 11:09:58,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 11:09:58,861 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 11:09:58,861 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 11:09:58,862 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 11:09:58,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:09:51" (3/4) ... [2022-07-19 11:09:58,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 11:09:58,886 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 11:09:58,887 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 11:09:58,887 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 11:09:58,888 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 11:09:58,972 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 11:09:58,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 11:09:58,973 INFO L158 Benchmark]: Toolchain (without parser) took 8167.84ms. Allocated memory was 151.0MB in the beginning and 245.4MB in the end (delta: 94.4MB). Free memory was 111.8MB in the beginning and 163.2MB in the end (delta: -51.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,974 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 121.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 11:09:58,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.07ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 108.4MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.61ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 102.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,974 INFO L158 Benchmark]: Boogie Preprocessor took 43.29ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 98.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,975 INFO L158 Benchmark]: RCFGBuilder took 685.99ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 98.4MB in the beginning and 169.9MB in the end (delta: -71.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,975 INFO L158 Benchmark]: TraceAbstraction took 6936.37ms. Allocated memory was 201.3MB in the beginning and 245.4MB in the end (delta: 44.0MB). Free memory was 168.8MB in the beginning and 173.7MB in the end (delta: -4.9MB). Peak memory consumption was 145.1MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,975 INFO L158 Benchmark]: Witness Printer took 111.73ms. Allocated memory is still 245.4MB. Free memory was 173.7MB in the beginning and 163.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 11:09:58,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 121.1MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.07ms. Allocated memory is still 151.0MB. Free memory was 111.6MB in the beginning and 108.4MB in the end (delta: 3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.61ms. Allocated memory is still 151.0MB. Free memory was 108.4MB in the beginning and 102.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.29ms. Allocated memory is still 151.0MB. Free memory was 102.6MB in the beginning and 98.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 685.99ms. Allocated memory was 151.0MB in the beginning and 201.3MB in the end (delta: 50.3MB). Free memory was 98.4MB in the beginning and 169.9MB in the end (delta: -71.5MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6936.37ms. Allocated memory was 201.3MB in the beginning and 245.4MB in the end (delta: 44.0MB). Free memory was 168.8MB in the beginning and 173.7MB in the end (delta: -4.9MB). Peak memory consumption was 145.1MB. Max. memory is 16.1GB. * Witness Printer took 111.73ms. Allocated memory is still 245.4MB. Free memory was 173.7MB in the beginning and 163.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 572]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1521 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1521 mSDsluCounter, 1602 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 176 mSDsCounter, 780 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4101 IncrementalHoareTripleChecker+Invalid, 4881 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 780 mSolverCounterUnsat, 1426 mSDtfsCounter, 4101 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 256 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3966occurred in iteration=10, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 727 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 139 HoareAnnotationTreeSize, 3 FomulaSimplifications, 698 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 704 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2197 NumberOfCodeBlocks, 2197 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2185 ConstructedInterpolants, 0 QuantifiedInterpolants, 5323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 362 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 938/996 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && a25 == 0) || ((a25 == 1 && a11 == 0) && a28 <= 10)) || ((10 <= a28 && a28 <= 10) && a19 == 1)) || ((9 <= a28 && a25 == 1) && a28 <= 9)) || (a11 == 0 && a25 == 0)) || ((a25 == 1 && 8 <= a17) && a28 <= 10)) || (a25 == 1 && a19 == 1)) || (a28 <= 10 && a25 == 0) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((a19 == 1 && a25 == 0) || ((a25 == 1 && a11 == 0) && a28 <= 10)) || ((10 <= a28 && a28 <= 10) && a19 == 1)) || ((9 <= a28 && a25 == 1) && a28 <= 9)) || (a11 == 0 && a25 == 0)) || ((a25 == 1 && 8 <= a17) && a28 <= 10)) || (a25 == 1 && a19 == 1)) || (a28 <= 10 && a25 == 0) RESULT: Ultimate proved your program to be correct! [2022-07-19 11:09:59,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE