./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/Problem10_label54.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 feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:36:55,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:36:55,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:36:55,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:36:55,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:36:55,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:36:55,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:36:55,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:36:55,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:36:55,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:36:55,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:36:55,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:36:55,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:36:55,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:36:55,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:36:55,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:36:55,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:36:55,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:36:55,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:36:55,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:36:55,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:36:55,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:36:55,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:36:55,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:36:55,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:36:55,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:36:55,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:36:55,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:36:55,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:36:55,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:36:55,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:36:55,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:36:55,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:36:55,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:36:55,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:36:55,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:36:55,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:36:55,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:36:55,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:36:55,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:36:55,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:36:55,580 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:36:55,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:36:55,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:36:55,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:36:55,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:36:55,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:36:55,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:36:55,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:36:55,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:36:55,607 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:36:55,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:36:55,608 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:36:55,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:36:55,609 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:36:55,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:36:55,610 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:36:55,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:36:55,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:36:55,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:36:55,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:36:55,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:36:55,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:36:55,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:36:55,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:36:55,611 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:36:55,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:36:55,612 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:36:55,612 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:36:55,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:36:55,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:36:55,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff [2021-12-15 22:36:56,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:36:56,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:36:56,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:36:56,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:36:56,051 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:36:56,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2021-12-15 22:36:56,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3329e331c/a2da3c36ee274e43952171255d53b38a/FLAG0739c108c [2021-12-15 22:36:56,625 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:36:56,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2021-12-15 22:36:56,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3329e331c/a2da3c36ee274e43952171255d53b38a/FLAG0739c108c [2021-12-15 22:36:56,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3329e331c/a2da3c36ee274e43952171255d53b38a [2021-12-15 22:36:56,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:36:56,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:36:56,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:36:56,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:36:56,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:36:56,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:56" (1/1) ... [2021-12-15 22:36:56,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307103c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:56, skipping insertion in model container [2021-12-15 22:36:56,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:36:56" (1/1) ... [2021-12-15 22:36:56,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:36:57,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:36:57,200 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/Problem10_label54.c[7067,7080] [2021-12-15 22:36:57,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:36:57,326 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:36:57,353 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/Problem10_label54.c[7067,7080] [2021-12-15 22:36:57,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:36:57,428 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:36:57,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57 WrapperNode [2021-12-15 22:36:57,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:36:57,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:36:57,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:36:57,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:36:57,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,511 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-12-15 22:36:57,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:36:57,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:36:57,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:36:57,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:36:57,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:36:57,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:36:57,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:36:57,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:36:57,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (1/1) ... [2021-12-15 22:36:57,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:36:57,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:36:57,633 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) [2021-12-15 22:36:57,678 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 [2021-12-15 22:36:57,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:36:57,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:36:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:36:57,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:36:57,786 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:36:57,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:36:58,751 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:36:58,759 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:36:58,759 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:36:58,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:58 BoogieIcfgContainer [2021-12-15 22:36:58,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:36:58,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:36:58,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:36:58,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:36:58,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:36:56" (1/3) ... [2021-12-15 22:36:58,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f77f56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:58, skipping insertion in model container [2021-12-15 22:36:58,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:36:57" (2/3) ... [2021-12-15 22:36:58,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f77f56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:36:58, skipping insertion in model container [2021-12-15 22:36:58,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:58" (3/3) ... [2021-12-15 22:36:58,771 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label54.c [2021-12-15 22:36:58,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:36:58,777 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:36:58,820 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:36:58,828 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:36:58,828 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:36:58,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-12-15 22:36:58,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-15 22:36:58,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:36:58,859 INFO L514 BasicCegarLoop]: 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] [2021-12-15 22:36:58,860 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:36:58,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:36:58,865 INFO L85 PathProgramCache]: Analyzing trace with hash 531730986, now seen corresponding path program 1 times [2021-12-15 22:36:58,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:36:58,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736414556] [2021-12-15 22:36:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:36:58,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:36:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:36:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:36:59,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:36:59,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736414556] [2021-12-15 22:36:59,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736414556] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:36:59,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:36:59,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:36:59,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052078884] [2021-12-15 22:36:59,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:36:59,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:36:59,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:36:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:36:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:36:59,187 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:37:00,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:00,011 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-12-15 22:37:00,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:00,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-12-15 22:37:00,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:00,027 INFO L225 Difference]: With dead ends: 567 [2021-12-15 22:37:00,027 INFO L226 Difference]: Without dead ends: 282 [2021-12-15 22:37:00,031 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:00,034 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 116 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:00,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 66 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 22:37:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-12-15 22:37:00,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-12-15 22:37:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.4661921708185053) internal successors, (412), 281 states have internal predecessors, (412), 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) [2021-12-15 22:37:00,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2021-12-15 22:37:00,079 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 62 [2021-12-15 22:37:00,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:00,080 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2021-12-15 22:37:00,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:37:00,080 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2021-12-15 22:37:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-12-15 22:37:00,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:00,086 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:37:00,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:37:00,087 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:00,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:00,088 INFO L85 PathProgramCache]: Analyzing trace with hash -914301940, now seen corresponding path program 1 times [2021-12-15 22:37:00,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:00,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341419467] [2021-12-15 22:37:00,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:00,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:37:00,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:00,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341419467] [2021-12-15 22:37:00,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341419467] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:00,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:00,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:37:00,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48746914] [2021-12-15 22:37:00,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:00,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:00,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:00,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:00,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:00,253 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-15 22:37:01,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:01,036 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2021-12-15 22:37:01,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:01,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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 132 [2021-12-15 22:37:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:01,055 INFO L225 Difference]: With dead ends: 840 [2021-12-15 22:37:01,055 INFO L226 Difference]: Without dead ends: 560 [2021-12-15 22:37:01,056 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:01,057 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:01,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 67 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 22:37:01,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-15 22:37:01,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-12-15 22:37:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3059033989266546) internal successors, (730), 559 states have internal predecessors, (730), 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) [2021-12-15 22:37:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2021-12-15 22:37:01,086 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 132 [2021-12-15 22:37:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:01,087 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2021-12-15 22:37:01,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 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) [2021-12-15 22:37:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2021-12-15 22:37:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-15 22:37:01,095 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:01,095 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:37:01,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:37:01,096 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:01,097 INFO L85 PathProgramCache]: Analyzing trace with hash -779134940, now seen corresponding path program 1 times [2021-12-15 22:37:01,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:01,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274315349] [2021-12-15 22:37:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:01,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:37:01,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:01,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274315349] [2021-12-15 22:37:01,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274315349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:01,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:01,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 22:37:01,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660297946] [2021-12-15 22:37:01,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:01,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-15 22:37:01,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:01,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-15 22:37:01,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:37:01,372 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2021-12-15 22:37:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:01,944 INFO L93 Difference]: Finished difference Result 1173 states and 1513 transitions. [2021-12-15 22:37:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 22:37:01,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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 137 [2021-12-15 22:37:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:01,956 INFO L225 Difference]: With dead ends: 1173 [2021-12-15 22:37:01,956 INFO L226 Difference]: Without dead ends: 560 [2021-12-15 22:37:01,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:37:01,970 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 198 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:01,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 22 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:37:01,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-12-15 22:37:01,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-12-15 22:37:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.298747763864043) internal successors, (726), 559 states have internal predecessors, (726), 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) [2021-12-15 22:37:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 726 transitions. [2021-12-15 22:37:01,989 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 726 transitions. Word has length 137 [2021-12-15 22:37:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:01,989 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 726 transitions. [2021-12-15 22:37:01,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 6 states have internal predecessors, (137), 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) [2021-12-15 22:37:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 726 transitions. [2021-12-15 22:37:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-15 22:37:01,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:01,993 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:37:01,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:37:01,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:01,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1413984764, now seen corresponding path program 1 times [2021-12-15 22:37:01,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:01,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396239474] [2021-12-15 22:37:01,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:01,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:02,066 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:37:02,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:02,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396239474] [2021-12-15 22:37:02,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396239474] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:02,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:02,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:37:02,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122933146] [2021-12-15 22:37:02,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:02,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:02,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:02,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:02,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:02,069 INFO L87 Difference]: Start difference. First operand 560 states and 726 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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) [2021-12-15 22:37:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:02,531 INFO L93 Difference]: Finished difference Result 1674 states and 2173 transitions. [2021-12-15 22:37:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:02,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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 153 [2021-12-15 22:37:02,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:02,536 INFO L225 Difference]: With dead ends: 1674 [2021-12-15 22:37:02,537 INFO L226 Difference]: Without dead ends: 1116 [2021-12-15 22:37:02,537 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:02,538 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:02,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:37:02,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-12-15 22:37:02,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 977. [2021-12-15 22:37:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.271516393442623) internal successors, (1241), 976 states have internal predecessors, (1241), 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) [2021-12-15 22:37:02,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1241 transitions. [2021-12-15 22:37:02,576 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1241 transitions. Word has length 153 [2021-12-15 22:37:02,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:02,578 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1241 transitions. [2021-12-15 22:37:02,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 2 states have internal predecessors, (153), 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) [2021-12-15 22:37:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1241 transitions. [2021-12-15 22:37:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-12-15 22:37:02,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:02,581 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:37:02,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:37:02,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:02,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1504028171, now seen corresponding path program 1 times [2021-12-15 22:37:02,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:02,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031755319] [2021-12-15 22:37:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:02,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:02,662 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:37:02,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:02,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031755319] [2021-12-15 22:37:02,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031755319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:02,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:02,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:37:02,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15899142] [2021-12-15 22:37:02,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:02,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:02,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:02,667 INFO L87 Difference]: Start difference. First operand 977 states and 1241 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-12-15 22:37:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:03,105 INFO L93 Difference]: Finished difference Result 2091 states and 2628 transitions. [2021-12-15 22:37:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:03,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2021-12-15 22:37:03,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:03,110 INFO L225 Difference]: With dead ends: 2091 [2021-12-15 22:37:03,110 INFO L226 Difference]: Without dead ends: 1116 [2021-12-15 22:37:03,112 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:03,117 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:03,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 82 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:37:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2021-12-15 22:37:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2021-12-15 22:37:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.2412556053811659) internal successors, (1384), 1115 states have internal predecessors, (1384), 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) [2021-12-15 22:37:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1384 transitions. [2021-12-15 22:37:03,142 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1384 transitions. Word has length 154 [2021-12-15 22:37:03,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:03,143 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1384 transitions. [2021-12-15 22:37:03,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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) [2021-12-15 22:37:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1384 transitions. [2021-12-15 22:37:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-15 22:37:03,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:03,148 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-15 22:37:03,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:37:03,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:03,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:03,151 INFO L85 PathProgramCache]: Analyzing trace with hash -114636214, now seen corresponding path program 1 times [2021-12-15 22:37:03,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:03,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019343937] [2021-12-15 22:37:03,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:03,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:37:03,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:03,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019343937] [2021-12-15 22:37:03,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019343937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:03,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:03,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:37:03,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650865870] [2021-12-15 22:37:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:03,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:03,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:03,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:03,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:03,264 INFO L87 Difference]: Start difference. First operand 1116 states and 1384 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:37:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:03,754 INFO L93 Difference]: Finished difference Result 2369 states and 2990 transitions. [2021-12-15 22:37:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:03,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-12-15 22:37:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:03,760 INFO L225 Difference]: With dead ends: 2369 [2021-12-15 22:37:03,760 INFO L226 Difference]: Without dead ends: 1394 [2021-12-15 22:37:03,762 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:03,765 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 91 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:03,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 205 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:37:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-12-15 22:37:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-12-15 22:37:03,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.1579325197415649) internal successors, (1613), 1393 states have internal predecessors, (1613), 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) [2021-12-15 22:37:03,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1613 transitions. [2021-12-15 22:37:03,806 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1613 transitions. Word has length 173 [2021-12-15 22:37:03,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:03,807 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1613 transitions. [2021-12-15 22:37:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:37:03,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1613 transitions. [2021-12-15 22:37:03,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-12-15 22:37:03,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:03,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:37:03,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:37:03,812 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:03,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:03,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1672698145, now seen corresponding path program 1 times [2021-12-15 22:37:03,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:03,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432996755] [2021-12-15 22:37:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:03,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-15 22:37:03,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:03,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432996755] [2021-12-15 22:37:03,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432996755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:03,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:03,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:37:03,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221288949] [2021-12-15 22:37:03,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:03,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:03,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:03,965 INFO L87 Difference]: Start difference. First operand 1394 states and 1613 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-12-15 22:37:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:04,454 INFO L93 Difference]: Finished difference Result 2925 states and 3448 transitions. [2021-12-15 22:37:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:04,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-12-15 22:37:04,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:04,462 INFO L225 Difference]: With dead ends: 2925 [2021-12-15 22:37:04,462 INFO L226 Difference]: Without dead ends: 1672 [2021-12-15 22:37:04,464 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:04,466 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 82 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:04,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 220 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:37:04,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2021-12-15 22:37:04,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2021-12-15 22:37:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.1466187911430281) internal successors, (1916), 1671 states have internal predecessors, (1916), 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) [2021-12-15 22:37:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1916 transitions. [2021-12-15 22:37:04,499 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1916 transitions. Word has length 220 [2021-12-15 22:37:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:04,500 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 1916 transitions. [2021-12-15 22:37:04,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2021-12-15 22:37:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1916 transitions. [2021-12-15 22:37:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-15 22:37:04,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:04,504 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:37:04,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:37:04,505 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:04,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1771816331, now seen corresponding path program 1 times [2021-12-15 22:37:04,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:04,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777096447] [2021-12-15 22:37:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:04,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-15 22:37:04,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:04,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777096447] [2021-12-15 22:37:04,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777096447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:04,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:37:04,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:37:04,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69207727] [2021-12-15 22:37:04,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:04,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:04,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:04,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:04,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:37:04,603 INFO L87 Difference]: Start difference. First operand 1672 states and 1916 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:37:05,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:05,025 INFO L93 Difference]: Finished difference Result 3481 states and 4054 transitions. [2021-12-15 22:37:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:05,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 221 [2021-12-15 22:37:05,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:05,032 INFO L225 Difference]: With dead ends: 3481 [2021-12-15 22:37:05,032 INFO L226 Difference]: Without dead ends: 1950 [2021-12-15 22:37:05,034 INFO L932 BasicCegarLoop]: 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 [2021-12-15 22:37:05,035 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 84 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:05,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 214 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:37:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2021-12-15 22:37:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1672. [2021-12-15 22:37:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.1412327947336924) internal successors, (1907), 1671 states have internal predecessors, (1907), 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) [2021-12-15 22:37:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1907 transitions. [2021-12-15 22:37:05,102 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1907 transitions. Word has length 221 [2021-12-15 22:37:05,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:05,102 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 1907 transitions. [2021-12-15 22:37:05,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2021-12-15 22:37:05,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1907 transitions. [2021-12-15 22:37:05,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-12-15 22:37:05,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:05,110 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:37:05,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:37:05,111 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:05,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1482947813, now seen corresponding path program 1 times [2021-12-15 22:37:05,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:05,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258321247] [2021-12-15 22:37:05,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:05,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2021-12-15 22:37:05,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:05,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258321247] [2021-12-15 22:37:05,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258321247] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:37:05,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584261371] [2021-12-15 22:37:05,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:05,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:37:05,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:37:05,411 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) [2021-12-15 22:37:05,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:37:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:05,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:37:05,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:37:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-15 22:37:06,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:37:06,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584261371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:06,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:37:06,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-15 22:37:06,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393732072] [2021-12-15 22:37:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:06,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:06,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:37:06,557 INFO L87 Difference]: Start difference. First operand 1672 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-12-15 22:37:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:06,996 INFO L93 Difference]: Finished difference Result 2508 states and 2851 transitions. [2021-12-15 22:37:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 348 [2021-12-15 22:37:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:07,006 INFO L225 Difference]: With dead ends: 2508 [2021-12-15 22:37:07,006 INFO L226 Difference]: Without dead ends: 2506 [2021-12-15 22:37:07,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:37:07,008 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 67 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:07,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 11 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:37:07,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2021-12-15 22:37:07,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 1811. [2021-12-15 22:37:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.1574585635359116) internal successors, (2095), 1810 states have internal predecessors, (2095), 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) [2021-12-15 22:37:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2095 transitions. [2021-12-15 22:37:07,048 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2095 transitions. Word has length 348 [2021-12-15 22:37:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:07,048 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2095 transitions. [2021-12-15 22:37:07,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2021-12-15 22:37:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2095 transitions. [2021-12-15 22:37:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-12-15 22:37:07,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:37:07,056 INFO L514 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:37:07,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 22:37:07,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:37:07,296 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:37:07,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:37:07,296 INFO L85 PathProgramCache]: Analyzing trace with hash 419342785, now seen corresponding path program 1 times [2021-12-15 22:37:07,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:37:07,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722698568] [2021-12-15 22:37:07,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:07,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:37:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 86 proven. 93 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-15 22:37:07,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:37:07,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722698568] [2021-12-15 22:37:07,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722698568] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:37:07,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323551252] [2021-12-15 22:37:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:37:07,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:37:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:37:07,464 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) [2021-12-15 22:37:07,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:37:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:37:07,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:37:07,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:37:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-12-15 22:37:08,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:37:08,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323551252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:37:08,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:37:08,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:37:08,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517955125] [2021-12-15 22:37:08,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:37:08,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:37:08,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:37:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:37:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:37:08,045 INFO L87 Difference]: Start difference. First operand 1811 states and 2095 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2021-12-15 22:37:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:37:08,469 INFO L93 Difference]: Finished difference Result 3757 states and 4341 transitions. [2021-12-15 22:37:08,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:37:08,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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 361 [2021-12-15 22:37:08,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:37:08,471 INFO L225 Difference]: With dead ends: 3757 [2021-12-15 22:37:08,471 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:37:08,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:37:08,475 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 80 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:37:08,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 222 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:37:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:37:08,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:37:08,478 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) [2021-12-15 22:37:08,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:37:08,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 361 [2021-12-15 22:37:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:37:08,479 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:37:08,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 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) [2021-12-15 22:37:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:37:08,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:37:08,482 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:37:08,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:37:08,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-15 22:37:08,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:37:08,997 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-12-15 22:37:08,997 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-12-15 22:37:08,997 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-12-15 22:37:08,997 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-12-15 22:37:08,999 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-12-15 22:37:08,999 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-12-15 22:37:08,999 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,000 INFO L858 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-12-15 22:37:09,001 INFO L858 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,002 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-12-15 22:37:09,003 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-12-15 22:37:09,004 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,005 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-12-15 22:37:09,006 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-12-15 22:37:09,007 INFO L858 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,008 INFO L858 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-12-15 22:37:09,009 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,010 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-12-15 22:37:09,011 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-12-15 22:37:09,012 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,013 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-12-15 22:37:09,014 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-12-15 22:37:09,015 INFO L854 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= ~a4~0 14)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and .cse0 (= ~a10~0 0) .cse1) (and .cse0 .cse1 (= ~a10~0 4) .cse2) (and .cse0 .cse1 (<= ~a19~0 6)) (and .cse0 .cse1 (<= 9 ~a19~0) .cse2) (and .cse0 .cse1 (= ~a10~0 1)) (and .cse0 .cse1 .cse2 (= ~a10~0 2)))) [2021-12-15 22:37:09,015 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-12-15 22:37:09,015 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-12-15 22:37:09,015 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-12-15 22:37:09,015 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-12-15 22:37:09,016 INFO L858 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-12-15 22:37:09,017 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:37:09,018 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-12-15 22:37:09,019 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-12-15 22:37:09,020 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-12-15 22:37:09,021 INFO L858 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-12-15 22:37:09,022 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-12-15 22:37:09,023 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-12-15 22:37:09,023 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-12-15 22:37:09,023 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= ~a4~0 14)) (.cse1 (= ~a12~0 0)) (.cse2 (<= ~a19~0 9))) (or (and .cse0 (= ~a10~0 0) .cse1) (and .cse0 .cse1 (= ~a10~0 4) .cse2) (and .cse0 .cse1 (<= ~a19~0 6)) (and .cse0 .cse1 (<= 9 ~a19~0) .cse2) (and .cse0 .cse1 (= ~a10~0 1)) (and .cse0 .cse1 .cse2 (= ~a10~0 2)))) [2021-12-15 22:37:09,023 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-12-15 22:37:09,023 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,023 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-12-15 22:37:09,024 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-12-15 22:37:09,025 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,026 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-12-15 22:37:09,027 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-12-15 22:37:09,028 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-12-15 22:37:09,032 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:37:09,033 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:37:09,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:37:09 BoogieIcfgContainer [2021-12-15 22:37:09,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:37:09,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:37:09,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:37:09,062 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:37:09,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:36:58" (3/4) ... [2021-12-15 22:37:09,065 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:37:09,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:37:09,091 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:37:09,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:37:09,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:37:09,177 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:37:09,177 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:37:09,178 INFO L158 Benchmark]: Toolchain (without parser) took 12222.12ms. Allocated memory was 96.5MB in the beginning and 209.7MB in the end (delta: 113.2MB). Free memory was 53.5MB in the beginning and 88.2MB in the end (delta: -34.6MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,178 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:37:09,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.69ms. Allocated memory is still 96.5MB. Free memory was 53.3MB in the beginning and 50.7MB in the end (delta: 2.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.20ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 42.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,179 INFO L158 Benchmark]: Boogie Preprocessor took 75.63ms. Allocated memory is still 96.5MB. Free memory was 42.6MB in the beginning and 68.0MB in the end (delta: -25.4MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,179 INFO L158 Benchmark]: RCFGBuilder took 1172.17ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 68.0MB in the beginning and 76.8MB in the end (delta: -8.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,180 INFO L158 Benchmark]: TraceAbstraction took 10298.05ms. Allocated memory was 134.2MB in the beginning and 209.7MB in the end (delta: 75.5MB). Free memory was 76.3MB in the beginning and 102.9MB in the end (delta: -26.5MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,180 INFO L158 Benchmark]: Witness Printer took 116.19ms. Allocated memory is still 209.7MB. Free memory was 102.9MB in the beginning and 88.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:37:09,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.69ms. Allocated memory is still 96.5MB. Free memory was 53.3MB in the beginning and 50.7MB in the end (delta: 2.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.20ms. Allocated memory is still 96.5MB. Free memory was 50.7MB in the beginning and 42.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.63ms. Allocated memory is still 96.5MB. Free memory was 42.6MB in the beginning and 68.0MB in the end (delta: -25.4MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1172.17ms. Allocated memory was 96.5MB in the beginning and 134.2MB in the end (delta: 37.7MB). Free memory was 68.0MB in the beginning and 76.8MB in the end (delta: -8.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10298.05ms. Allocated memory was 134.2MB in the beginning and 209.7MB in the end (delta: 75.5MB). Free memory was 76.3MB in the beginning and 102.9MB in the end (delta: -26.5MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Witness Printer took 116.19ms. Allocated memory is still 209.7MB. Free memory was 102.9MB in the beginning and 88.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 200]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 929 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 929 mSDsluCounter, 1143 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 554 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4000 IncrementalHoareTripleChecker+Invalid, 4554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 554 mSolverCounterUnsat, 1089 mSDtfsCounter, 4000 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 737 GetRequests, 718 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=9, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1112 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 141 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 852 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 2670 NumberOfCodeBlocks, 2670 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2658 ConstructedInterpolants, 0 QuantifiedInterpolants, 9958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 979 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 2150/2381 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: 592]: Loop Invariant Derived loop invariant: ((((((a4 == 14 && a10 == 0) && a12 == 0) || (((a4 == 14 && a12 == 0) && a10 == 4) && a19 <= 9)) || ((a4 == 14 && a12 == 0) && a19 <= 6)) || (((a4 == 14 && a12 == 0) && 9 <= a19) && a19 <= 9)) || ((a4 == 14 && a12 == 0) && a10 == 1)) || (((a4 == 14 && a12 == 0) && a19 <= 9) && a10 == 2) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((a4 == 14 && a10 == 0) && a12 == 0) || (((a4 == 14 && a12 == 0) && a10 == 4) && a19 <= 9)) || ((a4 == 14 && a12 == 0) && a19 <= 6)) || (((a4 == 14 && a12 == 0) && 9 <= a19) && a19 <= 9)) || ((a4 == 14 && a12 == 0) && a10 == 1)) || (((a4 == 14 && a12 == 0) && a19 <= 9) && a10 == 2) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-15 22:37:09,200 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