./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label48.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 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-20 22:44:14,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 22:44:14,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 22:44:14,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 22:44:14,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 22:44:14,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 22:44:14,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 22:44:14,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 22:44:14,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 22:44:14,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 22:44:14,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 22:44:14,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 22:44:14,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 22:44:15,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 22:44:15,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 22:44:15,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 22:44:15,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 22:44:15,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 22:44:15,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 22:44:15,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 22:44:15,017 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 22:44:15,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 22:44:15,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 22:44:15,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 22:44:15,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 22:44:15,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 22:44:15,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 22:44:15,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 22:44:15,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 22:44:15,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 22:44:15,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 22:44:15,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 22:44:15,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 22:44:15,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 22:44:15,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 22:44:15,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 22:44:15,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 22:44:15,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 22:44:15,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 22:44:15,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 22:44:15,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 22:44:15,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 22:44:15,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 22:44:15,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 22:44:15,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 22:44:15,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 22:44:15,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 22:44:15,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 22:44:15,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 22:44:15,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 22:44:15,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 22:44:15,071 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 22:44:15,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 22:44:15,072 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 22:44:15,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 22:44:15,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 22:44:15,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 22:44:15,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 22:44:15,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 22:44:15,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 22:44:15,074 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 22:44:15,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 22:44:15,074 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 22:44:15,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 22:44:15,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 22:44:15,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 22:44:15,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 22:44:15,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:44:15,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 22:44:15,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 22:44:15,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 22:44:15,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 22:44:15,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 22:44:15,077 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 22:44:15,077 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 22:44:15,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 22:44:15,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1479ddd90ec2fcde77d063083da596ee818d8098bb47b0581d7cfb4606042d51 [2022-07-20 22:44:15,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 22:44:15,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 22:44:15,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 22:44:15,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 22:44:15,423 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 22:44:15,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2022-07-20 22:44:15,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ad4f07a/aa832066e62e47c2bc95e419fa61fc4f/FLAG33c123211 [2022-07-20 22:44:16,000 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 22:44:16,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label48.c [2022-07-20 22:44:16,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ad4f07a/aa832066e62e47c2bc95e419fa61fc4f/FLAG33c123211 [2022-07-20 22:44:16,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ad4f07a/aa832066e62e47c2bc95e419fa61fc4f [2022-07-20 22:44:16,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 22:44:16,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 22:44:16,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 22:44:16,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 22:44:16,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 22:44:16,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525334d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16, skipping insertion in model container [2022-07-20 22:44:16,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 22:44:16,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 22:44:16,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2022-07-20 22:44:16,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:44:16,704 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 22:44:16,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label48.c[20593,20606] [2022-07-20 22:44:16,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 22:44:16,847 INFO L208 MainTranslator]: Completed translation [2022-07-20 22:44:16,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16 WrapperNode [2022-07-20 22:44:16,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 22:44:16,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 22:44:16,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 22:44:16,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 22:44:16,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,955 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-07-20 22:44:16,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 22:44:16,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 22:44:16,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 22:44:16,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 22:44:16,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:16,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:17,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:17,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:17,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:17,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 22:44:17,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 22:44:17,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 22:44:17,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 22:44:17,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (1/1) ... [2022-07-20 22:44:17,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 22:44:17,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:44:17,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-20 22:44:17,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-20 22:44:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 22:44:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 22:44:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 22:44:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 22:44:17,178 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 22:44:17,180 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 22:44:17,981 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 22:44:17,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 22:44:17,989 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-20 22:44:17,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:17 BoogieIcfgContainer [2022-07-20 22:44:17,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 22:44:17,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 22:44:17,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 22:44:17,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 22:44:17,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:44:16" (1/3) ... [2022-07-20 22:44:17,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ea1dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:17, skipping insertion in model container [2022-07-20 22:44:17,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:44:16" (2/3) ... [2022-07-20 22:44:17,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ea1dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:44:17, skipping insertion in model container [2022-07-20 22:44:17,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:17" (3/3) ... [2022-07-20 22:44:18,000 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label48.c [2022-07-20 22:44:18,013 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 22:44:18,013 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 22:44:18,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 22:44:18,078 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@1669f900, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@29ec7928 [2022-07-20 22:44:18,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 22:44:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-20 22:44:18,112 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:18,114 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] [2022-07-20 22:44:18,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:18,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1763883850, now seen corresponding path program 1 times [2022-07-20 22:44:18,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:18,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445486549] [2022-07-20 22:44:18,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:18,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:18,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:44:18,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:18,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445486549] [2022-07-20 22:44:18,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445486549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:18,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:18,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:44:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823022003] [2022-07-20 22:44:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:18,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:18,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:18,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:18,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:18,627 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:19,286 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2022-07-20 22:44:19,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:19,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-07-20 22:44:19,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:19,300 INFO L225 Difference]: With dead ends: 528 [2022-07-20 22:44:19,300 INFO L226 Difference]: Without dead ends: 266 [2022-07-20 22:44:19,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:19,306 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 51 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:19,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 84 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:44:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-20 22:44:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-07-20 22:44:19,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2022-07-20 22:44:19,351 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 121 [2022-07-20 22:44:19,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:19,351 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2022-07-20 22:44:19,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2022-07-20 22:44:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-20 22:44:19,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:19,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:19,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 22:44:19,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:19,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:19,357 INFO L85 PathProgramCache]: Analyzing trace with hash 982355587, now seen corresponding path program 1 times [2022-07-20 22:44:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:19,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183100795] [2022-07-20 22:44:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:19,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:44:19,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:19,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183100795] [2022-07-20 22:44:19,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183100795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:19,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:19,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:44:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558072083] [2022-07-20 22:44:19,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:19,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:19,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:19,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:19,419 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:19,834 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2022-07-20 22:44:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:19,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 127 [2022-07-20 22:44:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:19,840 INFO L225 Difference]: With dead ends: 792 [2022-07-20 22:44:19,840 INFO L226 Difference]: Without dead ends: 528 [2022-07-20 22:44:19,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:19,846 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:19,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:44:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-07-20 22:44:19,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-07-20 22:44:19,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2022-07-20 22:44:19,888 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 127 [2022-07-20 22:44:19,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:19,891 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2022-07-20 22:44:19,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:19,891 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2022-07-20 22:44:19,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-20 22:44:19,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:19,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:19,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 22:44:19,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:19,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:19,900 INFO L85 PathProgramCache]: Analyzing trace with hash -569986173, now seen corresponding path program 1 times [2022-07-20 22:44:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:19,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542095678] [2022-07-20 22:44:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:19,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:44:20,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:20,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542095678] [2022-07-20 22:44:20,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542095678] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:20,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:20,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:20,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308093426] [2022-07-20 22:44:20,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:20,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:44:20,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:20,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:44:20,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:20,061 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:20,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:20,659 INFO L93 Difference]: Finished difference Result 1411 states and 1882 transitions. [2022-07-20 22:44:20,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:44:20,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2022-07-20 22:44:20,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:20,663 INFO L225 Difference]: With dead ends: 1411 [2022-07-20 22:44:20,663 INFO L226 Difference]: Without dead ends: 790 [2022-07-20 22:44:20,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:20,665 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 130 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:20,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 81 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-20 22:44:20,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-20 22:44:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2022-07-20 22:44:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1634980988593155) internal successors, (918), 789 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 918 transitions. [2022-07-20 22:44:20,694 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 918 transitions. Word has length 128 [2022-07-20 22:44:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:20,695 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 918 transitions. [2022-07-20 22:44:20,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 918 transitions. [2022-07-20 22:44:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-20 22:44:20,697 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:20,697 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:20,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 22:44:20,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash -866278320, now seen corresponding path program 1 times [2022-07-20 22:44:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:20,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347513553] [2022-07-20 22:44:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:20,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:20,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 22:44:20,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:20,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347513553] [2022-07-20 22:44:20,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347513553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:20,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:20,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 22:44:20,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182590113] [2022-07-20 22:44:20,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:20,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:20,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:20,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:20,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:20,762 INFO L87 Difference]: Start difference. First operand 790 states and 918 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:21,061 INFO L93 Difference]: Finished difference Result 1578 states and 1859 transitions. [2022-07-20 22:44:21,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:21,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2022-07-20 22:44:21,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:21,065 INFO L225 Difference]: With dead ends: 1578 [2022-07-20 22:44:21,065 INFO L226 Difference]: Without dead ends: 921 [2022-07-20 22:44:21,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:21,067 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:21,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 45 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-07-20 22:44:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2022-07-20 22:44:21,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.1532608695652173) internal successors, (1061), 920 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1061 transitions. [2022-07-20 22:44:21,084 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1061 transitions. Word has length 133 [2022-07-20 22:44:21,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:21,085 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1061 transitions. [2022-07-20 22:44:21,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,085 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1061 transitions. [2022-07-20 22:44:21,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-20 22:44:21,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:21,087 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:21,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 22:44:21,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:21,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:21,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1513060814, now seen corresponding path program 1 times [2022-07-20 22:44:21,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:21,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255828018] [2022-07-20 22:44:21,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:21,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:21,129 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 22:44:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:21,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255828018] [2022-07-20 22:44:21,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255828018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:21,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:21,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988576800] [2022-07-20 22:44:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:21,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:21,132 INFO L87 Difference]: Start difference. First operand 921 states and 1061 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:21,478 INFO L93 Difference]: Finished difference Result 2364 states and 2732 transitions. [2022-07-20 22:44:21,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:21,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2022-07-20 22:44:21,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:21,492 INFO L225 Difference]: With dead ends: 2364 [2022-07-20 22:44:21,492 INFO L226 Difference]: Without dead ends: 1576 [2022-07-20 22:44:21,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:21,497 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 135 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:21,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 19 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:21,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2022-07-20 22:44:21,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1183. [2022-07-20 22:44:21,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.1505922165820643) internal successors, (1360), 1182 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1360 transitions. [2022-07-20 22:44:21,535 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1360 transitions. Word has length 142 [2022-07-20 22:44:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:21,535 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1360 transitions. [2022-07-20 22:44:21,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1360 transitions. [2022-07-20 22:44:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-20 22:44:21,537 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:21,538 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:21,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 22:44:21,538 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:21,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1611413025, now seen corresponding path program 1 times [2022-07-20 22:44:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:21,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219279190] [2022-07-20 22:44:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-20 22:44:21,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:21,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219279190] [2022-07-20 22:44:21,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219279190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:21,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:21,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:21,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360315113] [2022-07-20 22:44:21,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:21,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:44:21,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:44:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:21,633 INFO L87 Difference]: Start difference. First operand 1183 states and 1360 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:22,120 INFO L93 Difference]: Finished difference Result 2495 states and 2925 transitions. [2022-07-20 22:44:22,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:44:22,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2022-07-20 22:44:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:22,124 INFO L225 Difference]: With dead ends: 2495 [2022-07-20 22:44:22,125 INFO L226 Difference]: Without dead ends: 1445 [2022-07-20 22:44:22,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:22,129 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 262 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:22,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 34 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:44:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-07-20 22:44:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2022-07-20 22:44:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.144736842105263) internal successors, (1653), 1444 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1653 transitions. [2022-07-20 22:44:22,172 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1653 transitions. Word has length 148 [2022-07-20 22:44:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:22,172 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1653 transitions. [2022-07-20 22:44:22,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1653 transitions. [2022-07-20 22:44:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-20 22:44:22,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:22,175 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:22,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 22:44:22,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1437264732, now seen corresponding path program 1 times [2022-07-20 22:44:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:22,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012779473] [2022-07-20 22:44:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 22:44:22,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:22,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012779473] [2022-07-20 22:44:22,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012779473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:22,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:22,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:22,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460815287] [2022-07-20 22:44:22,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:22,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:44:22,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:22,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:44:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:22,265 INFO L87 Difference]: Start difference. First operand 1445 states and 1653 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:22,742 INFO L93 Difference]: Finished difference Result 3281 states and 3775 transitions. [2022-07-20 22:44:22,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:44:22,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 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 162 [2022-07-20 22:44:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:22,748 INFO L225 Difference]: With dead ends: 3281 [2022-07-20 22:44:22,748 INFO L226 Difference]: Without dead ends: 1969 [2022-07-20 22:44:22,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:22,770 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 371 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:22,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 42 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:44:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-07-20 22:44:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2022-07-20 22:44:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.136091453456723) internal successors, (2087), 1837 states have internal predecessors, (2087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2087 transitions. [2022-07-20 22:44:22,814 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2087 transitions. Word has length 162 [2022-07-20 22:44:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:22,814 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2087 transitions. [2022-07-20 22:44:22,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2087 transitions. [2022-07-20 22:44:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-20 22:44:22,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:22,819 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:22,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 22:44:22,819 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:22,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1659319423, now seen corresponding path program 1 times [2022-07-20 22:44:22,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:22,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028431935] [2022-07-20 22:44:22,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:22,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-20 22:44:22,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:22,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028431935] [2022-07-20 22:44:22,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028431935] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:22,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:22,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:22,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101595373] [2022-07-20 22:44:22,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:22,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 22:44:22,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:22,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 22:44:22,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:22,893 INFO L87 Difference]: Start difference. First operand 1838 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:23,366 INFO L93 Difference]: Finished difference Result 3805 states and 4312 transitions. [2022-07-20 22:44:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 22:44:23,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2022-07-20 22:44:23,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:23,372 INFO L225 Difference]: With dead ends: 3805 [2022-07-20 22:44:23,372 INFO L226 Difference]: Without dead ends: 2100 [2022-07-20 22:44:23,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-20 22:44:23,374 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 275 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:23,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 33 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:44:23,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-20 22:44:23,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2022-07-20 22:44:23,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1295590636908002) internal successors, (2075), 1837 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2075 transitions. [2022-07-20 22:44:23,410 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2075 transitions. Word has length 179 [2022-07-20 22:44:23,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:23,411 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 2075 transitions. [2022-07-20 22:44:23,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2075 transitions. [2022-07-20 22:44:23,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-07-20 22:44:23,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:23,415 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:23,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 22:44:23,415 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:23,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:23,416 INFO L85 PathProgramCache]: Analyzing trace with hash -593095199, now seen corresponding path program 1 times [2022-07-20 22:44:23,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:23,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834428597] [2022-07-20 22:44:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:23,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-20 22:44:23,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:23,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834428597] [2022-07-20 22:44:23,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834428597] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:23,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 22:44:23,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-20 22:44:23,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261888216] [2022-07-20 22:44:23,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:23,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:23,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:23,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:23,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:23,493 INFO L87 Difference]: Start difference. First operand 1838 states and 2075 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:23,780 INFO L93 Difference]: Finished difference Result 3936 states and 4452 transitions. [2022-07-20 22:44:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:23,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 222 [2022-07-20 22:44:23,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:23,788 INFO L225 Difference]: With dead ends: 3936 [2022-07-20 22:44:23,788 INFO L226 Difference]: Without dead ends: 2231 [2022-07-20 22:44:23,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-20 22:44:23,793 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 86 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:23,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 180 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2022-07-20 22:44:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2100. [2022-07-20 22:44:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.120057170080991) internal successors, (2351), 2099 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2351 transitions. [2022-07-20 22:44:23,843 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2351 transitions. Word has length 222 [2022-07-20 22:44:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:23,844 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2351 transitions. [2022-07-20 22:44:23,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2351 transitions. [2022-07-20 22:44:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-20 22:44:23,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:23,850 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:44:23,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 22:44:23,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:23,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:23,852 INFO L85 PathProgramCache]: Analyzing trace with hash -997547212, now seen corresponding path program 1 times [2022-07-20 22:44:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:23,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283561808] [2022-07-20 22:44:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:23,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:24,086 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 57 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 22:44:24,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:24,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283561808] [2022-07-20 22:44:24,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283561808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:44:24,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34257956] [2022-07-20 22:44:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:24,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:24,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:44:24,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:44:24,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 22:44:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:24,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:44:24,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:44:24,592 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-20 22:44:24,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:44:24,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34257956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:24,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:44:24,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-20 22:44:24,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58607514] [2022-07-20 22:44:24,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:24,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:24,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:24,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:24,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 22:44:24,594 INFO L87 Difference]: Start difference. First operand 2100 states and 2351 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:24,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:24,926 INFO L93 Difference]: Finished difference Result 4198 states and 4700 transitions. [2022-07-20 22:44:24,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:24,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 225 [2022-07-20 22:44:24,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:24,937 INFO L225 Difference]: With dead ends: 4198 [2022-07-20 22:44:24,937 INFO L226 Difference]: Without dead ends: 2100 [2022-07-20 22:44:24,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-20 22:44:24,940 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 23 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:24,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 170 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2022-07-20 22:44:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1969. [2022-07-20 22:44:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.100609756097561) internal successors, (2166), 1968 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:24,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2166 transitions. [2022-07-20 22:44:24,987 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2166 transitions. Word has length 225 [2022-07-20 22:44:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:24,988 INFO L495 AbstractCegarLoop]: Abstraction has 1969 states and 2166 transitions. [2022-07-20 22:44:24,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2166 transitions. [2022-07-20 22:44:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-20 22:44:25,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:25,011 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:44:25,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 22:44:25,226 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,SelfDestructingSolverStorable9 [2022-07-20 22:44:25,227 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:25,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1379691512, now seen corresponding path program 1 times [2022-07-20 22:44:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:25,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296130091] [2022-07-20 22:44:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:25,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 119 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-20 22:44:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:25,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296130091] [2022-07-20 22:44:25,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296130091] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:44:25,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28627578] [2022-07-20 22:44:25,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:25,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:25,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:44:25,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:44:25,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 22:44:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:25,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:44:25,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:44:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-07-20 22:44:25,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:44:25,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28627578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:25,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:44:25,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 22:44:25,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402994574] [2022-07-20 22:44:25,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:25,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:25,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:25,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:25,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:44:25,726 INFO L87 Difference]: Start difference. First operand 1969 states and 2166 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:26,123 INFO L93 Difference]: Finished difference Result 4460 states and 4887 transitions. [2022-07-20 22:44:26,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:26,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 244 [2022-07-20 22:44:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:26,130 INFO L225 Difference]: With dead ends: 4460 [2022-07-20 22:44:26,131 INFO L226 Difference]: Without dead ends: 1969 [2022-07-20 22:44:26,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:44:26,134 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 20 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:26,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 173 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-20 22:44:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-07-20 22:44:26,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2022-07-20 22:44:26,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.0691344583560152) internal successors, (1964), 1837 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 1964 transitions. [2022-07-20 22:44:26,169 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 1964 transitions. Word has length 244 [2022-07-20 22:44:26,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:26,169 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 1964 transitions. [2022-07-20 22:44:26,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:26,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 1964 transitions. [2022-07-20 22:44:26,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-20 22:44:26,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:26,175 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 22:44:26,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 22:44:26,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-20 22:44:26,391 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1452501502, now seen corresponding path program 1 times [2022-07-20 22:44:26,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:26,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90212446] [2022-07-20 22:44:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:26,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 69 proven. 124 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-20 22:44:26,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90212446] [2022-07-20 22:44:26,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90212446] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:44:26,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614858871] [2022-07-20 22:44:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:26,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:26,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:44:26,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:44:26,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 22:44:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:26,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:44:26,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:44:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-07-20 22:44:26,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:44:26,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614858871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:26,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:44:26,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-20 22:44:26,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430639392] [2022-07-20 22:44:26,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:26,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:26,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:26,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:44:26,773 INFO L87 Difference]: Start difference. First operand 1838 states and 1964 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:27,086 INFO L93 Difference]: Finished difference Result 3674 states and 3944 transitions. [2022-07-20 22:44:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:27,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 249 [2022-07-20 22:44:27,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:27,092 INFO L225 Difference]: With dead ends: 3674 [2022-07-20 22:44:27,092 INFO L226 Difference]: Without dead ends: 1969 [2022-07-20 22:44:27,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 22:44:27,095 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:27,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 164 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2022-07-20 22:44:27,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2022-07-20 22:44:27,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 1.0627198124267292) internal successors, (1813), 1706 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:27,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1813 transitions. [2022-07-20 22:44:27,125 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1813 transitions. Word has length 249 [2022-07-20 22:44:27,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:27,126 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 1813 transitions. [2022-07-20 22:44:27,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1813 transitions. [2022-07-20 22:44:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-20 22:44:27,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 22:44:27,131 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:27,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 22:44:27,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:27,356 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 22:44:27,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 22:44:27,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1606170497, now seen corresponding path program 1 times [2022-07-20 22:44:27,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 22:44:27,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896369329] [2022-07-20 22:44:27,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:27,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 22:44:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 201 proven. 127 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-20 22:44:27,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 22:44:27,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896369329] [2022-07-20 22:44:27,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896369329] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 22:44:27,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989522270] [2022-07-20 22:44:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 22:44:27,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:27,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 22:44:27,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 22:44:27,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 22:44:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 22:44:27,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 22:44:27,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 22:44:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-07-20 22:44:27,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 22:44:27,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989522270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 22:44:27,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 22:44:27,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-20 22:44:27,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20021337] [2022-07-20 22:44:27,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 22:44:27,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 22:44:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 22:44:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 22:44:27,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 22:44:27,771 INFO L87 Difference]: Start difference. First operand 1707 states and 1813 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 22:44:28,049 INFO L93 Difference]: Finished difference Result 3672 states and 3915 transitions. [2022-07-20 22:44:28,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 22:44:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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 287 [2022-07-20 22:44:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 22:44:28,051 INFO L225 Difference]: With dead ends: 3672 [2022-07-20 22:44:28,051 INFO L226 Difference]: Without dead ends: 0 [2022-07-20 22:44:28,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 22:44:28,055 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 13 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-20 22:44:28,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 177 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-20 22:44:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-20 22:44:28,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-20 22:44:28,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:28,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-20 22:44:28,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2022-07-20 22:44:28,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 22:44:28,056 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-20 22:44:28,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-20 22:44:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-20 22:44:28,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-20 22:44:28,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-20 22:44:28,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 22:44:28,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 22:44:28,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-07-20 22:44:29,158 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-07-20 22:44:29,159 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-07-20 22:44:29,161 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-07-20 22:44:29,162 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-07-20 22:44:29,163 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-07-20 22:44:29,164 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,165 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-07-20 22:44:29,166 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-07-20 22:44:29,167 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-07-20 22:44:29,168 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-07-20 22:44:29,170 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-07-20 22:44:29,171 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse4 (<= 15 ~a8~0)) (.cse2 (<= ~a17~0 0)) (.cse5 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 5)) (.cse1 (= ~a16~0 6)) (.cse10 (= ~a12~0 8)) (.cse3 (= ~a21~0 1)) (.cse6 (= ~a17~0 1)) (.cse7 (<= ~a16~0 4)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse7) (and .cse5 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse9) (and .cse10 .cse3 .cse6 .cse9 .cse8 .cse4) (and .cse2 .cse3 .cse9 .cse8) (and .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse6 .cse8) (and .cse0 .cse5 .cse3 .cse9) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse5 .cse2 .cse8) (and .cse5 .cse3 .cse9 .cse8) (and .cse10 .cse1 .cse3 .cse6 .cse8) (and .cse10 .cse3 .cse6 .cse7 .cse8))) [2022-07-20 22:44:29,171 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,171 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,171 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,171 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-07-20 22:44:29,172 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,173 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-07-20 22:44:29,174 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0)) (.cse4 (<= 15 ~a8~0)) (.cse2 (<= ~a17~0 0)) (.cse5 (<= ~a8~0 13)) (.cse9 (<= ~a16~0 5)) (.cse1 (= ~a16~0 6)) (.cse10 (= ~a12~0 8)) (.cse3 (= ~a21~0 1)) (.cse6 (= ~a17~0 1)) (.cse7 (<= ~a16~0 4)) (.cse8 (= ~a20~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse7) (and .cse5 .cse7 .cse8) (and .cse0 .cse1 .cse3 .cse6 .cse4) (and .cse0 .cse2 .cse3 .cse9) (and .cse10 .cse3 .cse6 .cse9 .cse8 .cse4) (and .cse2 .cse3 .cse9 .cse8) (and .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse6 .cse8) (and .cse0 .cse5 .cse3 .cse9) (and .cse0 .cse3 .cse6 .cse9 .cse4) (and .cse5 .cse2 .cse8) (and .cse5 .cse3 .cse9 .cse8) (and .cse10 .cse1 .cse3 .cse6 .cse8) (and .cse10 .cse3 .cse6 .cse7 .cse8))) [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 549) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-07-20 22:44:29,176 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-07-20 22:44:29,177 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-07-20 22:44:29,182 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 22:44:29,184 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-20 22:44:29,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:44:29 BoogieIcfgContainer [2022-07-20 22:44:29,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-20 22:44:29,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-20 22:44:29,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-20 22:44:29,225 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-20 22:44:29,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:44:17" (3/4) ... [2022-07-20 22:44:29,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-20 22:44:29,251 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-20 22:44:29,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-20 22:44:29,252 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-20 22:44:29,253 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-20 22:44:29,339 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-20 22:44:29,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-20 22:44:29,340 INFO L158 Benchmark]: Toolchain (without parser) took 13017.89ms. Allocated memory was 65.0MB in the beginning and 222.3MB in the end (delta: 157.3MB). Free memory was 43.9MB in the beginning and 194.0MB in the end (delta: -150.1MB). Peak memory consumption was 136.8MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,340 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-20 22:44:29,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 526.52ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 32.7MB in the end (delta: 11.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.11ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 32.7MB in the beginning and 60.3MB in the end (delta: -27.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,341 INFO L158 Benchmark]: Boogie Preprocessor took 55.83ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 56.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,342 INFO L158 Benchmark]: RCFGBuilder took 974.09ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 44.2MB in the end (delta: 11.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,342 INFO L158 Benchmark]: TraceAbstraction took 11230.32ms. Allocated memory was 81.8MB in the beginning and 222.3MB in the end (delta: 140.5MB). Free memory was 43.4MB in the beginning and 75.0MB in the end (delta: -31.6MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,343 INFO L158 Benchmark]: Witness Printer took 114.72ms. Allocated memory is still 222.3MB. Free memory was 75.0MB in the beginning and 194.0MB in the end (delta: -119.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-07-20 22:44:29,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory was 47.4MB in the beginning and 47.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 526.52ms. Allocated memory is still 65.0MB. Free memory was 43.7MB in the beginning and 32.7MB in the end (delta: 11.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.11ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 32.7MB in the beginning and 60.3MB in the end (delta: -27.6MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.83ms. Allocated memory is still 81.8MB. Free memory was 60.3MB in the beginning and 56.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 974.09ms. Allocated memory is still 81.8MB. Free memory was 56.1MB in the beginning and 44.2MB in the end (delta: 11.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11230.32ms. Allocated memory was 81.8MB in the beginning and 222.3MB in the end (delta: 140.5MB). Free memory was 43.4MB in the beginning and 75.0MB in the end (delta: -31.6MB). Peak memory consumption was 115.0MB. Max. memory is 16.1GB. * Witness Printer took 114.72ms. Allocated memory is still 222.3MB. Free memory was 75.0MB in the beginning and 194.0MB in the end (delta: -119.0MB). Peak memory consumption was 11.0MB. 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: 549]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1653 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1653 mSDsluCounter, 1238 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 740 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4852 IncrementalHoareTripleChecker+Invalid, 5592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 740 mSolverCounterUnsat, 1154 mSDtfsCounter, 4852 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1043 GetRequests, 1012 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2100occurred in iteration=9, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 47 NumberOfFragments, 417 HoareAnnotationTreeSize, 3 FomulaSimplifications, 376 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2196 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 3372 NumberOfCodeBlocks, 3372 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3355 ConstructedInterpolants, 0 QuantifiedInterpolants, 18715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1795 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 1820/2288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((((((((((a20 <= 0 && a16 == 6) && a17 <= 0) && a21 == 1) && 15 <= a8) || (((a20 <= 0 && a8 <= 13) && a17 == 1) && a16 <= 4)) || ((a8 <= 13 && a16 <= 4) && a20 == 1)) || ((((a20 <= 0 && a16 == 6) && a21 == 1) && a17 == 1) && 15 <= a8)) || (((a20 <= 0 && a17 <= 0) && a21 == 1) && a16 <= 5)) || (((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1) && 15 <= a8)) || (((a17 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a17 <= 0 && a21 == 1) && a20 == 1) && 15 <= a8)) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a8 <= 13) && a21 == 1) && a16 <= 5)) || ((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) && 15 <= a8)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((((((((((((((a20 <= 0 && a16 == 6) && a17 <= 0) && a21 == 1) && 15 <= a8) || (((a20 <= 0 && a8 <= 13) && a17 == 1) && a16 <= 4)) || ((a8 <= 13 && a16 <= 4) && a20 == 1)) || ((((a20 <= 0 && a16 == 6) && a21 == 1) && a17 == 1) && 15 <= a8)) || (((a20 <= 0 && a17 <= 0) && a21 == 1) && a16 <= 5)) || (((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 5) && a20 == 1) && 15 <= a8)) || (((a17 <= 0 && a21 == 1) && a16 <= 5) && a20 == 1)) || (((a17 <= 0 && a21 == 1) && a20 == 1) && 15 <= a8)) || ((a8 <= 13 && a17 == 1) && a20 == 1)) || (((a20 <= 0 && a8 <= 13) && a21 == 1) && a16 <= 5)) || ((((a20 <= 0 && a21 == 1) && a17 == 1) && a16 <= 5) && 15 <= a8)) || ((a8 <= 13 && a17 <= 0) && a20 == 1)) || (((a8 <= 13 && a21 == 1) && a16 <= 5) && a20 == 1)) || ((((a12 == 8 && a16 == 6) && a21 == 1) && a17 == 1) && a20 == 1)) || ((((a12 == 8 && a21 == 1) && a17 == 1) && a16 <= 4) && a20 == 1) RESULT: Ultimate proved your program to be correct! [2022-07-20 22:44:29,385 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